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ROG Ally X20 vs Legion Go 2 vs AYN Thor: $1,299 Test [2026]

Owen Castellanos
Owen CastellanosHardware & Gaming Reporter
23 min read
ROG Ally X20 vs Legion Go 2 vs AYN Thor: $1,299 Test [2026]

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

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Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Benchmark Results: Cyberpunk 2077, Forza Horizon 6, and More

Specs on paper only tell half the story. Here’s what independent testing actually measured, pulled from three separate outlets running three different handhelds.

DeviceGame / TestResultSource
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset, native 1920×120032.4 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset + FSR/frame gen71.5 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, RT low preset, native18.8 FPSStuff
Legion Go 2 (Windows)Shadow of the Tomb Raider, Ultra, RT on20 FPSStuff
Legion Go 2 (Windows)Gears Tactics, Ultra, native32.4 FPSStuff
Legion Go 2 (Windows)3DMark Steel Nomad Light3,232 points (23.94 FPS)Stuff
ROG Xbox Ally X20Forza Horizon 6, 1080p, medium settings60 FPSTom’s Guide
Legion Go S (SteamOS vs Windows, same chip)General game testing, identical Ryzen Z2 Go hardwareSteamOS 30-45% faster than WindowsNotebookcheck (via Frames Games)
Steam Deck OLEDInput latency, pre/post SteamOS 3.8 (June 18, 2026)Dropped from 5-8ms to 100-500 microsecondsFrames Games

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

For anyone shopping on a tighter budget, a refurbished Steam Deck OLED remains the cheapest route into a full Steam library, and it’s worth reading how that device’s own pricing shifted earlier in 2026 before assuming the Ally X20 or Legion Go 2 is the better value play.

Benchmark Results: Cyberpunk 2077, Forza Horizon 6, and More

Specs on paper only tell half the story. Here’s what independent testing actually measured, pulled from three separate outlets running three different handhelds.

DeviceGame / TestResultSource
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset, native 1920×120032.4 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset + FSR/frame gen71.5 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, RT low preset, native18.8 FPSStuff
Legion Go 2 (Windows)Shadow of the Tomb Raider, Ultra, RT on20 FPSStuff
Legion Go 2 (Windows)Gears Tactics, Ultra, native32.4 FPSStuff
Legion Go 2 (Windows)3DMark Steel Nomad Light3,232 points (23.94 FPS)Stuff
ROG Xbox Ally X20Forza Horizon 6, 1080p, medium settings60 FPSTom’s Guide
Legion Go S (SteamOS vs Windows, same chip)General game testing, identical Ryzen Z2 Go hardwareSteamOS 30-45% faster than WindowsNotebookcheck (via Frames Games)
Steam Deck OLEDInput latency, pre/post SteamOS 3.8 (June 18, 2026)Dropped from 5-8ms to 100-500 microsecondsFrames Games

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Note the AYN Thor pricing comes with a caveat: Android Authority reported on April 17, 2026 that AYN introduced the 16GB/512GB Max configuration at $469 and the 16GB/1TB model at $549, then on June 29, 2026 reported a further price increase effective July 3, 2026, raising the Max 512GB by $10 and the Max 1TB by $30. The figures above reflect that post-increase pricing. AYN has also swapped some batches from UFS 4.0 to UFS 3.1 storage to manage supply costs, so buyers should confirm the exact storage spec on any listing before ordering.

For anyone shopping on a tighter budget, a refurbished Steam Deck OLED remains the cheapest route into a full Steam library, and it’s worth reading how that device’s own pricing shifted earlier in 2026 before assuming the Ally X20 or Legion Go 2 is the better value play.

Benchmark Results: Cyberpunk 2077, Forza Horizon 6, and More

Specs on paper only tell half the story. Here’s what independent testing actually measured, pulled from three separate outlets running three different handhelds.

DeviceGame / TestResultSource
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset, native 1920×120032.4 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset + FSR/frame gen71.5 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, RT low preset, native18.8 FPSStuff
Legion Go 2 (Windows)Shadow of the Tomb Raider, Ultra, RT on20 FPSStuff
Legion Go 2 (Windows)Gears Tactics, Ultra, native32.4 FPSStuff
Legion Go 2 (Windows)3DMark Steel Nomad Light3,232 points (23.94 FPS)Stuff
ROG Xbox Ally X20Forza Horizon 6, 1080p, medium settings60 FPSTom’s Guide
Legion Go S (SteamOS vs Windows, same chip)General game testing, identical Ryzen Z2 Go hardwareSteamOS 30-45% faster than WindowsNotebookcheck (via Frames Games)
Steam Deck OLEDInput latency, pre/post SteamOS 3.8 (June 18, 2026)Dropped from 5-8ms to 100-500 microsecondsFrames Games

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Note the AYN Thor pricing comes with a caveat: Android Authority reported on April 17, 2026 that AYN introduced the 16GB/512GB Max configuration at $469 and the 16GB/1TB model at $549, then on June 29, 2026 reported a further price increase effective July 3, 2026, raising the Max 512GB by $10 and the Max 1TB by $30. The figures above reflect that post-increase pricing. AYN has also swapped some batches from UFS 4.0 to UFS 3.1 storage to manage supply costs, so buyers should confirm the exact storage spec on any listing before ordering.

For anyone shopping on a tighter budget, a refurbished Steam Deck OLED remains the cheapest route into a full Steam library, and it’s worth reading how that device’s own pricing shifted earlier in 2026 before assuming the Ally X20 or Legion Go 2 is the better value play.

Benchmark Results: Cyberpunk 2077, Forza Horizon 6, and More

Specs on paper only tell half the story. Here’s what independent testing actually measured, pulled from three separate outlets running three different handhelds.

DeviceGame / TestResultSource
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset, native 1920×120032.4 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset + FSR/frame gen71.5 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, RT low preset, native18.8 FPSStuff
Legion Go 2 (Windows)Shadow of the Tomb Raider, Ultra, RT on20 FPSStuff
Legion Go 2 (Windows)Gears Tactics, Ultra, native32.4 FPSStuff
Legion Go 2 (Windows)3DMark Steel Nomad Light3,232 points (23.94 FPS)Stuff
ROG Xbox Ally X20Forza Horizon 6, 1080p, medium settings60 FPSTom’s Guide
Legion Go S (SteamOS vs Windows, same chip)General game testing, identical Ryzen Z2 Go hardwareSteamOS 30-45% faster than WindowsNotebookcheck (via Frames Games)
Steam Deck OLEDInput latency, pre/post SteamOS 3.8 (June 18, 2026)Dropped from 5-8ms to 100-500 microsecondsFrames Games

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

2026 Pricing Breakdown: Every Configuration That Matters

Handheld pricing has gotten messy in 2026, with multiple manufacturers raising prices mid-year. Here’s the full configuration spread across all three families, plus the reference points buyers keep comparing them to.

DeviceConfigurationPrice
ROG Xbox Ally (base)Ryzen Z2 A, 16GB, 60Wh$599.99
ROG Xbox Ally XRyzen AI Z2 Extreme, 24GB, 80Wh$999.99
ROG Xbox Ally X20Same chip, 7.4″ OLED, magnetic sticks$1,299.99
ROG Xbox Ally X20 Anniversary Bundle+ Xreal R1 Edition 20 AR glasses + dBrand case$2,499.99
Legion Go 2 (Windows, base)Entry Ryzen Z2 config$1,099
Legion Go 2 (Windows, as-tested)Ryzen Z2 Extreme, 32GB, 1TB$1,349
Legion Go 2 (SteamOS edition, announced)Lenovo-stated spec, unverified by reviewersFrom $1,199
Legion Go S (officially “Powered by SteamOS”)Ryzen Z1 Extreme, 32GB, 1TB, Lenovo’s own store$1,099.99
Legion Go S (SteamOS, third-party retail)Lower-tier configsFrom ~$594
AYN Thor Max (512GB)Snapdragon 8 Gen 2, 16GB~$479 (post price hike)
AYN Thor Max (1TB)Snapdragon 8 Gen 2, 16GB~$579 (post price hike)
Steam Deck OLED (refurbished, Valve store)512GB$629
Steam Deck OLED (refurbished, Valve store)1TB$759
MSI Claw 8 EX AI+ (for reference)Intel Arc G3 ExtremeFrom $1,499

Note the AYN Thor pricing comes with a caveat: Android Authority reported on April 17, 2026 that AYN introduced the 16GB/512GB Max configuration at $469 and the 16GB/1TB model at $549, then on June 29, 2026 reported a further price increase effective July 3, 2026, raising the Max 512GB by $10 and the Max 1TB by $30. The figures above reflect that post-increase pricing. AYN has also swapped some batches from UFS 4.0 to UFS 3.1 storage to manage supply costs, so buyers should confirm the exact storage spec on any listing before ordering.

For anyone shopping on a tighter budget, a refurbished Steam Deck OLED remains the cheapest route into a full Steam library, and it’s worth reading how that device’s own pricing shifted earlier in 2026 before assuming the Ally X20 or Legion Go 2 is the better value play.

Benchmark Results: Cyberpunk 2077, Forza Horizon 6, and More

Specs on paper only tell half the story. Here’s what independent testing actually measured, pulled from three separate outlets running three different handhelds.

DeviceGame / TestResultSource
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset, native 1920×120032.4 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset + FSR/frame gen71.5 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, RT low preset, native18.8 FPSStuff
Legion Go 2 (Windows)Shadow of the Tomb Raider, Ultra, RT on20 FPSStuff
Legion Go 2 (Windows)Gears Tactics, Ultra, native32.4 FPSStuff
Legion Go 2 (Windows)3DMark Steel Nomad Light3,232 points (23.94 FPS)Stuff
ROG Xbox Ally X20Forza Horizon 6, 1080p, medium settings60 FPSTom’s Guide
Legion Go S (SteamOS vs Windows, same chip)General game testing, identical Ryzen Z2 Go hardwareSteamOS 30-45% faster than WindowsNotebookcheck (via Frames Games)
Steam Deck OLEDInput latency, pre/post SteamOS 3.8 (June 18, 2026)Dropped from 5-8ms to 100-500 microsecondsFrames Games

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Two things jump out immediately. First, the Legion Go 2 is the heaviest device here by nearly 165 grams over the Ally X20, a gap Stuff’s reviewer Tom Morgan-Freelander described as making it “as big and heavy as gaming handhelds get.” Second, the AYN Thor isn’t playing the same game as the other two at all — its 380g weight and dual-screen layout put it closer to a souped-up 3DS than a Steam Deck rival.

2026 Pricing Breakdown: Every Configuration That Matters

Handheld pricing has gotten messy in 2026, with multiple manufacturers raising prices mid-year. Here’s the full configuration spread across all three families, plus the reference points buyers keep comparing them to.

DeviceConfigurationPrice
ROG Xbox Ally (base)Ryzen Z2 A, 16GB, 60Wh$599.99
ROG Xbox Ally XRyzen AI Z2 Extreme, 24GB, 80Wh$999.99
ROG Xbox Ally X20Same chip, 7.4″ OLED, magnetic sticks$1,299.99
ROG Xbox Ally X20 Anniversary Bundle+ Xreal R1 Edition 20 AR glasses + dBrand case$2,499.99
Legion Go 2 (Windows, base)Entry Ryzen Z2 config$1,099
Legion Go 2 (Windows, as-tested)Ryzen Z2 Extreme, 32GB, 1TB$1,349
Legion Go 2 (SteamOS edition, announced)Lenovo-stated spec, unverified by reviewersFrom $1,199
Legion Go S (officially “Powered by SteamOS”)Ryzen Z1 Extreme, 32GB, 1TB, Lenovo’s own store$1,099.99
Legion Go S (SteamOS, third-party retail)Lower-tier configsFrom ~$594
AYN Thor Max (512GB)Snapdragon 8 Gen 2, 16GB~$479 (post price hike)
AYN Thor Max (1TB)Snapdragon 8 Gen 2, 16GB~$579 (post price hike)
Steam Deck OLED (refurbished, Valve store)512GB$629
Steam Deck OLED (refurbished, Valve store)1TB$759
MSI Claw 8 EX AI+ (for reference)Intel Arc G3 ExtremeFrom $1,499

Note the AYN Thor pricing comes with a caveat: Android Authority reported on April 17, 2026 that AYN introduced the 16GB/512GB Max configuration at $469 and the 16GB/1TB model at $549, then on June 29, 2026 reported a further price increase effective July 3, 2026, raising the Max 512GB by $10 and the Max 1TB by $30. The figures above reflect that post-increase pricing. AYN has also swapped some batches from UFS 4.0 to UFS 3.1 storage to manage supply costs, so buyers should confirm the exact storage spec on any listing before ordering.

For anyone shopping on a tighter budget, a refurbished Steam Deck OLED remains the cheapest route into a full Steam library, and it’s worth reading how that device’s own pricing shifted earlier in 2026 before assuming the Ally X20 or Legion Go 2 is the better value play.

Benchmark Results: Cyberpunk 2077, Forza Horizon 6, and More

Specs on paper only tell half the story. Here’s what independent testing actually measured, pulled from three separate outlets running three different handhelds.

DeviceGame / TestResultSource
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset, native 1920×120032.4 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset + FSR/frame gen71.5 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, RT low preset, native18.8 FPSStuff
Legion Go 2 (Windows)Shadow of the Tomb Raider, Ultra, RT on20 FPSStuff
Legion Go 2 (Windows)Gears Tactics, Ultra, native32.4 FPSStuff
Legion Go 2 (Windows)3DMark Steel Nomad Light3,232 points (23.94 FPS)Stuff
ROG Xbox Ally X20Forza Horizon 6, 1080p, medium settings60 FPSTom’s Guide
Legion Go S (SteamOS vs Windows, same chip)General game testing, identical Ryzen Z2 Go hardwareSteamOS 30-45% faster than WindowsNotebookcheck (via Frames Games)
Steam Deck OLEDInput latency, pre/post SteamOS 3.8 (June 18, 2026)Dropped from 5-8ms to 100-500 microsecondsFrames Games

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Two things jump out immediately. First, the Legion Go 2 is the heaviest device here by nearly 165 grams over the Ally X20, a gap Stuff’s reviewer Tom Morgan-Freelander described as making it “as big and heavy as gaming handhelds get.” Second, the AYN Thor isn’t playing the same game as the other two at all — its 380g weight and dual-screen layout put it closer to a souped-up 3DS than a Steam Deck rival.

2026 Pricing Breakdown: Every Configuration That Matters

Handheld pricing has gotten messy in 2026, with multiple manufacturers raising prices mid-year. Here’s the full configuration spread across all three families, plus the reference points buyers keep comparing them to.

DeviceConfigurationPrice
ROG Xbox Ally (base)Ryzen Z2 A, 16GB, 60Wh$599.99
ROG Xbox Ally XRyzen AI Z2 Extreme, 24GB, 80Wh$999.99
ROG Xbox Ally X20Same chip, 7.4″ OLED, magnetic sticks$1,299.99
ROG Xbox Ally X20 Anniversary Bundle+ Xreal R1 Edition 20 AR glasses + dBrand case$2,499.99
Legion Go 2 (Windows, base)Entry Ryzen Z2 config$1,099
Legion Go 2 (Windows, as-tested)Ryzen Z2 Extreme, 32GB, 1TB$1,349
Legion Go 2 (SteamOS edition, announced)Lenovo-stated spec, unverified by reviewersFrom $1,199
Legion Go S (officially “Powered by SteamOS”)Ryzen Z1 Extreme, 32GB, 1TB, Lenovo’s own store$1,099.99
Legion Go S (SteamOS, third-party retail)Lower-tier configsFrom ~$594
AYN Thor Max (512GB)Snapdragon 8 Gen 2, 16GB~$479 (post price hike)
AYN Thor Max (1TB)Snapdragon 8 Gen 2, 16GB~$579 (post price hike)
Steam Deck OLED (refurbished, Valve store)512GB$629
Steam Deck OLED (refurbished, Valve store)1TB$759
MSI Claw 8 EX AI+ (for reference)Intel Arc G3 ExtremeFrom $1,499

Note the AYN Thor pricing comes with a caveat: Android Authority reported on April 17, 2026 that AYN introduced the 16GB/512GB Max configuration at $469 and the 16GB/1TB model at $549, then on June 29, 2026 reported a further price increase effective July 3, 2026, raising the Max 512GB by $10 and the Max 1TB by $30. The figures above reflect that post-increase pricing. AYN has also swapped some batches from UFS 4.0 to UFS 3.1 storage to manage supply costs, so buyers should confirm the exact storage spec on any listing before ordering.

For anyone shopping on a tighter budget, a refurbished Steam Deck OLED remains the cheapest route into a full Steam library, and it’s worth reading how that device’s own pricing shifted earlier in 2026 before assuming the Ally X20 or Legion Go 2 is the better value play.

Benchmark Results: Cyberpunk 2077, Forza Horizon 6, and More

Specs on paper only tell half the story. Here’s what independent testing actually measured, pulled from three separate outlets running three different handhelds.

DeviceGame / TestResultSource
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset, native 1920×120032.4 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset + FSR/frame gen71.5 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, RT low preset, native18.8 FPSStuff
Legion Go 2 (Windows)Shadow of the Tomb Raider, Ultra, RT on20 FPSStuff
Legion Go 2 (Windows)Gears Tactics, Ultra, native32.4 FPSStuff
Legion Go 2 (Windows)3DMark Steel Nomad Light3,232 points (23.94 FPS)Stuff
ROG Xbox Ally X20Forza Horizon 6, 1080p, medium settings60 FPSTom’s Guide
Legion Go S (SteamOS vs Windows, same chip)General game testing, identical Ryzen Z2 Go hardwareSteamOS 30-45% faster than WindowsNotebookcheck (via Frames Games)
Steam Deck OLEDInput latency, pre/post SteamOS 3.8 (June 18, 2026)Dropped from 5-8ms to 100-500 microsecondsFrames Games

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Full Spec Comparison Table

Here’s how the core hardware stacks up, pulling exact figures from manufacturer listings and verified reviews rather than rounded marketing numbers.

SpecROG Xbox Ally X20Legion Go 2 (Windows, reviewed)AYN Thor (Max config)
Price (as tested)$1,299.99$1,349 (base $1,099)~$479 (Max 512GB)
Release dateOctober 15, 2026Reviewed January 2026Rolling 2026 batches
Operating systemWindows 11 + Xbox full screen experienceWindows 11 (SteamOS edition unverified)Android 13
CPU/APUAMD Ryzen AI Z2 ExtremeAMD Ryzen Z2 ExtremeQualcomm Snapdragon 8 Gen 2
RAM24GB LPDDR5X32GB16GB
Storage1TB PCIe 4.0 SSD1TB SSD + microSD512GB (expandable via microSD)
Display7.4-inch OLED, 120Hz, 1,400 nits8.8-inch OLED, 1920×1200, 144Hz6-inch 1080p 120Hz AMOLED (upper) + 3.92-inch 60Hz AMOLED (lower)
Battery capacity80Wh74Wh6,000mAh
Weight756g (approx.)920g380g
JoysticksMagnetic TMR (drift-resistant)Detachable, double as mouseHall-effect analog sticks
GPUAMD Radeon (RDNA 3.5, integrated)AMD Radeon (integrated)Adreno (integrated)
ConnectivityUSB4, Wi-Fi 6E2x USB-C, 3.5mm jackUSB-C with DisplayPort 4K60 alt mode

Two things jump out immediately. First, the Legion Go 2 is the heaviest device here by nearly 165 grams over the Ally X20, a gap Stuff’s reviewer Tom Morgan-Freelander described as making it “as big and heavy as gaming handhelds get.” Second, the AYN Thor isn’t playing the same game as the other two at all — its 380g weight and dual-screen layout put it closer to a souped-up 3DS than a Steam Deck rival.

2026 Pricing Breakdown: Every Configuration That Matters

Handheld pricing has gotten messy in 2026, with multiple manufacturers raising prices mid-year. Here’s the full configuration spread across all three families, plus the reference points buyers keep comparing them to.

DeviceConfigurationPrice
ROG Xbox Ally (base)Ryzen Z2 A, 16GB, 60Wh$599.99
ROG Xbox Ally XRyzen AI Z2 Extreme, 24GB, 80Wh$999.99
ROG Xbox Ally X20Same chip, 7.4″ OLED, magnetic sticks$1,299.99
ROG Xbox Ally X20 Anniversary Bundle+ Xreal R1 Edition 20 AR glasses + dBrand case$2,499.99
Legion Go 2 (Windows, base)Entry Ryzen Z2 config$1,099
Legion Go 2 (Windows, as-tested)Ryzen Z2 Extreme, 32GB, 1TB$1,349
Legion Go 2 (SteamOS edition, announced)Lenovo-stated spec, unverified by reviewersFrom $1,199
Legion Go S (officially “Powered by SteamOS”)Ryzen Z1 Extreme, 32GB, 1TB, Lenovo’s own store$1,099.99
Legion Go S (SteamOS, third-party retail)Lower-tier configsFrom ~$594
AYN Thor Max (512GB)Snapdragon 8 Gen 2, 16GB~$479 (post price hike)
AYN Thor Max (1TB)Snapdragon 8 Gen 2, 16GB~$579 (post price hike)
Steam Deck OLED (refurbished, Valve store)512GB$629
Steam Deck OLED (refurbished, Valve store)1TB$759
MSI Claw 8 EX AI+ (for reference)Intel Arc G3 ExtremeFrom $1,499

Note the AYN Thor pricing comes with a caveat: Android Authority reported on April 17, 2026 that AYN introduced the 16GB/512GB Max configuration at $469 and the 16GB/1TB model at $549, then on June 29, 2026 reported a further price increase effective July 3, 2026, raising the Max 512GB by $10 and the Max 1TB by $30. The figures above reflect that post-increase pricing. AYN has also swapped some batches from UFS 4.0 to UFS 3.1 storage to manage supply costs, so buyers should confirm the exact storage spec on any listing before ordering.

For anyone shopping on a tighter budget, a refurbished Steam Deck OLED remains the cheapest route into a full Steam library, and it’s worth reading how that device’s own pricing shifted earlier in 2026 before assuming the Ally X20 or Legion Go 2 is the better value play.

Benchmark Results: Cyberpunk 2077, Forza Horizon 6, and More

Specs on paper only tell half the story. Here’s what independent testing actually measured, pulled from three separate outlets running three different handhelds.

DeviceGame / TestResultSource
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset, native 1920×120032.4 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset + FSR/frame gen71.5 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, RT low preset, native18.8 FPSStuff
Legion Go 2 (Windows)Shadow of the Tomb Raider, Ultra, RT on20 FPSStuff
Legion Go 2 (Windows)Gears Tactics, Ultra, native32.4 FPSStuff
Legion Go 2 (Windows)3DMark Steel Nomad Light3,232 points (23.94 FPS)Stuff
ROG Xbox Ally X20Forza Horizon 6, 1080p, medium settings60 FPSTom’s Guide
Legion Go S (SteamOS vs Windows, same chip)General game testing, identical Ryzen Z2 Go hardwareSteamOS 30-45% faster than WindowsNotebookcheck (via Frames Games)
Steam Deck OLEDInput latency, pre/post SteamOS 3.8 (June 18, 2026)Dropped from 5-8ms to 100-500 microsecondsFrames Games

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

The AYN Thor is the outlier: a clamshell Android handheld with two AMOLED touchscreens, styled after the Nintendo 3DS XL. It became October 2026’s single biggest breakout handheld search term, pulling in roughly 301,000 searches according to Rising Trends’ gaming trend data. It isn’t trying to run Steam or Xbox Game Pass. It’s built for emulation, and its dual-screen layout is the reason people are searching for it.

Full Spec Comparison Table

Here’s how the core hardware stacks up, pulling exact figures from manufacturer listings and verified reviews rather than rounded marketing numbers.

SpecROG Xbox Ally X20Legion Go 2 (Windows, reviewed)AYN Thor (Max config)
Price (as tested)$1,299.99$1,349 (base $1,099)~$479 (Max 512GB)
Release dateOctober 15, 2026Reviewed January 2026Rolling 2026 batches
Operating systemWindows 11 + Xbox full screen experienceWindows 11 (SteamOS edition unverified)Android 13
CPU/APUAMD Ryzen AI Z2 ExtremeAMD Ryzen Z2 ExtremeQualcomm Snapdragon 8 Gen 2
RAM24GB LPDDR5X32GB16GB
Storage1TB PCIe 4.0 SSD1TB SSD + microSD512GB (expandable via microSD)
Display7.4-inch OLED, 120Hz, 1,400 nits8.8-inch OLED, 1920×1200, 144Hz6-inch 1080p 120Hz AMOLED (upper) + 3.92-inch 60Hz AMOLED (lower)
Battery capacity80Wh74Wh6,000mAh
Weight756g (approx.)920g380g
JoysticksMagnetic TMR (drift-resistant)Detachable, double as mouseHall-effect analog sticks
GPUAMD Radeon (RDNA 3.5, integrated)AMD Radeon (integrated)Adreno (integrated)
ConnectivityUSB4, Wi-Fi 6E2x USB-C, 3.5mm jackUSB-C with DisplayPort 4K60 alt mode

Two things jump out immediately. First, the Legion Go 2 is the heaviest device here by nearly 165 grams over the Ally X20, a gap Stuff’s reviewer Tom Morgan-Freelander described as making it “as big and heavy as gaming handhelds get.” Second, the AYN Thor isn’t playing the same game as the other two at all — its 380g weight and dual-screen layout put it closer to a souped-up 3DS than a Steam Deck rival.

2026 Pricing Breakdown: Every Configuration That Matters

Handheld pricing has gotten messy in 2026, with multiple manufacturers raising prices mid-year. Here’s the full configuration spread across all three families, plus the reference points buyers keep comparing them to.

DeviceConfigurationPrice
ROG Xbox Ally (base)Ryzen Z2 A, 16GB, 60Wh$599.99
ROG Xbox Ally XRyzen AI Z2 Extreme, 24GB, 80Wh$999.99
ROG Xbox Ally X20Same chip, 7.4″ OLED, magnetic sticks$1,299.99
ROG Xbox Ally X20 Anniversary Bundle+ Xreal R1 Edition 20 AR glasses + dBrand case$2,499.99
Legion Go 2 (Windows, base)Entry Ryzen Z2 config$1,099
Legion Go 2 (Windows, as-tested)Ryzen Z2 Extreme, 32GB, 1TB$1,349
Legion Go 2 (SteamOS edition, announced)Lenovo-stated spec, unverified by reviewersFrom $1,199
Legion Go S (officially “Powered by SteamOS”)Ryzen Z1 Extreme, 32GB, 1TB, Lenovo’s own store$1,099.99
Legion Go S (SteamOS, third-party retail)Lower-tier configsFrom ~$594
AYN Thor Max (512GB)Snapdragon 8 Gen 2, 16GB~$479 (post price hike)
AYN Thor Max (1TB)Snapdragon 8 Gen 2, 16GB~$579 (post price hike)
Steam Deck OLED (refurbished, Valve store)512GB$629
Steam Deck OLED (refurbished, Valve store)1TB$759
MSI Claw 8 EX AI+ (for reference)Intel Arc G3 ExtremeFrom $1,499

Note the AYN Thor pricing comes with a caveat: Android Authority reported on April 17, 2026 that AYN introduced the 16GB/512GB Max configuration at $469 and the 16GB/1TB model at $549, then on June 29, 2026 reported a further price increase effective July 3, 2026, raising the Max 512GB by $10 and the Max 1TB by $30. The figures above reflect that post-increase pricing. AYN has also swapped some batches from UFS 4.0 to UFS 3.1 storage to manage supply costs, so buyers should confirm the exact storage spec on any listing before ordering.

For anyone shopping on a tighter budget, a refurbished Steam Deck OLED remains the cheapest route into a full Steam library, and it’s worth reading how that device’s own pricing shifted earlier in 2026 before assuming the Ally X20 or Legion Go 2 is the better value play.

Benchmark Results: Cyberpunk 2077, Forza Horizon 6, and More

Specs on paper only tell half the story. Here’s what independent testing actually measured, pulled from three separate outlets running three different handhelds.

DeviceGame / TestResultSource
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset, native 1920×120032.4 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset + FSR/frame gen71.5 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, RT low preset, native18.8 FPSStuff
Legion Go 2 (Windows)Shadow of the Tomb Raider, Ultra, RT on20 FPSStuff
Legion Go 2 (Windows)Gears Tactics, Ultra, native32.4 FPSStuff
Legion Go 2 (Windows)3DMark Steel Nomad Light3,232 points (23.94 FPS)Stuff
ROG Xbox Ally X20Forza Horizon 6, 1080p, medium settings60 FPSTom’s Guide
Legion Go S (SteamOS vs Windows, same chip)General game testing, identical Ryzen Z2 Go hardwareSteamOS 30-45% faster than WindowsNotebookcheck (via Frames Games)
Steam Deck OLEDInput latency, pre/post SteamOS 3.8 (June 18, 2026)Dropped from 5-8ms to 100-500 microsecondsFrames Games

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

The Lenovo Legion Go 2 is more complicated. The version that has actually been reviewed — by Stuff, which gave it 4 out of 5 stars — ships with Windows 11 and starts at $1,099, rising to $1,349 for the configuration tested. Lenovo has also announced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” hardware list still did not include it, and no major outlet had independently reviewed that SteamOS build, per reporting from Frames Games. That distinction matters a lot for anyone deciding between these three devices.

The AYN Thor is the outlier: a clamshell Android handheld with two AMOLED touchscreens, styled after the Nintendo 3DS XL. It became October 2026’s single biggest breakout handheld search term, pulling in roughly 301,000 searches according to Rising Trends’ gaming trend data. It isn’t trying to run Steam or Xbox Game Pass. It’s built for emulation, and its dual-screen layout is the reason people are searching for it.

Full Spec Comparison Table

Here’s how the core hardware stacks up, pulling exact figures from manufacturer listings and verified reviews rather than rounded marketing numbers.

SpecROG Xbox Ally X20Legion Go 2 (Windows, reviewed)AYN Thor (Max config)
Price (as tested)$1,299.99$1,349 (base $1,099)~$479 (Max 512GB)
Release dateOctober 15, 2026Reviewed January 2026Rolling 2026 batches
Operating systemWindows 11 + Xbox full screen experienceWindows 11 (SteamOS edition unverified)Android 13
CPU/APUAMD Ryzen AI Z2 ExtremeAMD Ryzen Z2 ExtremeQualcomm Snapdragon 8 Gen 2
RAM24GB LPDDR5X32GB16GB
Storage1TB PCIe 4.0 SSD1TB SSD + microSD512GB (expandable via microSD)
Display7.4-inch OLED, 120Hz, 1,400 nits8.8-inch OLED, 1920×1200, 144Hz6-inch 1080p 120Hz AMOLED (upper) + 3.92-inch 60Hz AMOLED (lower)
Battery capacity80Wh74Wh6,000mAh
Weight756g (approx.)920g380g
JoysticksMagnetic TMR (drift-resistant)Detachable, double as mouseHall-effect analog sticks
GPUAMD Radeon (RDNA 3.5, integrated)AMD Radeon (integrated)Adreno (integrated)
ConnectivityUSB4, Wi-Fi 6E2x USB-C, 3.5mm jackUSB-C with DisplayPort 4K60 alt mode

Two things jump out immediately. First, the Legion Go 2 is the heaviest device here by nearly 165 grams over the Ally X20, a gap Stuff’s reviewer Tom Morgan-Freelander described as making it “as big and heavy as gaming handhelds get.” Second, the AYN Thor isn’t playing the same game as the other two at all — its 380g weight and dual-screen layout put it closer to a souped-up 3DS than a Steam Deck rival.

2026 Pricing Breakdown: Every Configuration That Matters

Handheld pricing has gotten messy in 2026, with multiple manufacturers raising prices mid-year. Here’s the full configuration spread across all three families, plus the reference points buyers keep comparing them to.

DeviceConfigurationPrice
ROG Xbox Ally (base)Ryzen Z2 A, 16GB, 60Wh$599.99
ROG Xbox Ally XRyzen AI Z2 Extreme, 24GB, 80Wh$999.99
ROG Xbox Ally X20Same chip, 7.4″ OLED, magnetic sticks$1,299.99
ROG Xbox Ally X20 Anniversary Bundle+ Xreal R1 Edition 20 AR glasses + dBrand case$2,499.99
Legion Go 2 (Windows, base)Entry Ryzen Z2 config$1,099
Legion Go 2 (Windows, as-tested)Ryzen Z2 Extreme, 32GB, 1TB$1,349
Legion Go 2 (SteamOS edition, announced)Lenovo-stated spec, unverified by reviewersFrom $1,199
Legion Go S (officially “Powered by SteamOS”)Ryzen Z1 Extreme, 32GB, 1TB, Lenovo’s own store$1,099.99
Legion Go S (SteamOS, third-party retail)Lower-tier configsFrom ~$594
AYN Thor Max (512GB)Snapdragon 8 Gen 2, 16GB~$479 (post price hike)
AYN Thor Max (1TB)Snapdragon 8 Gen 2, 16GB~$579 (post price hike)
Steam Deck OLED (refurbished, Valve store)512GB$629
Steam Deck OLED (refurbished, Valve store)1TB$759
MSI Claw 8 EX AI+ (for reference)Intel Arc G3 ExtremeFrom $1,499

Note the AYN Thor pricing comes with a caveat: Android Authority reported on April 17, 2026 that AYN introduced the 16GB/512GB Max configuration at $469 and the 16GB/1TB model at $549, then on June 29, 2026 reported a further price increase effective July 3, 2026, raising the Max 512GB by $10 and the Max 1TB by $30. The figures above reflect that post-increase pricing. AYN has also swapped some batches from UFS 4.0 to UFS 3.1 storage to manage supply costs, so buyers should confirm the exact storage spec on any listing before ordering.

For anyone shopping on a tighter budget, a refurbished Steam Deck OLED remains the cheapest route into a full Steam library, and it’s worth reading how that device’s own pricing shifted earlier in 2026 before assuming the Ally X20 or Legion Go 2 is the better value play.

Benchmark Results: Cyberpunk 2077, Forza Horizon 6, and More

Specs on paper only tell half the story. Here’s what independent testing actually measured, pulled from three separate outlets running three different handhelds.

DeviceGame / TestResultSource
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset, native 1920×120032.4 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset + FSR/frame gen71.5 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, RT low preset, native18.8 FPSStuff
Legion Go 2 (Windows)Shadow of the Tomb Raider, Ultra, RT on20 FPSStuff
Legion Go 2 (Windows)Gears Tactics, Ultra, native32.4 FPSStuff
Legion Go 2 (Windows)3DMark Steel Nomad Light3,232 points (23.94 FPS)Stuff
ROG Xbox Ally X20Forza Horizon 6, 1080p, medium settings60 FPSTom’s Guide
Legion Go S (SteamOS vs Windows, same chip)General game testing, identical Ryzen Z2 Go hardwareSteamOS 30-45% faster than WindowsNotebookcheck (via Frames Games)
Steam Deck OLEDInput latency, pre/post SteamOS 3.8 (June 18, 2026)Dropped from 5-8ms to 100-500 microsecondsFrames Games

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

The ASUS ROG Xbox Ally X20 is the “Edition 20” anniversary refresh of the ROG Xbox Ally X, revealed with pricing at Gamescom 2026 after ASUS dodged questions about cost at Computex. Pre-orders opened at $1,299.99 for the standalone unit, with a release date of October 15, 2026, according to Tom’s Guide’s hands-on report. The headline upgrades are a 7.4-inch ROG Nebula HDR OLED panel at 120Hz with 1,400-nit peak brightness, plus magnetic TMR joysticks designed to eliminate the drift that has plagued earlier Ally models.

The Lenovo Legion Go 2 is more complicated. The version that has actually been reviewed — by Stuff, which gave it 4 out of 5 stars — ships with Windows 11 and starts at $1,099, rising to $1,349 for the configuration tested. Lenovo has also announced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” hardware list still did not include it, and no major outlet had independently reviewed that SteamOS build, per reporting from Frames Games. That distinction matters a lot for anyone deciding between these three devices.

The AYN Thor is the outlier: a clamshell Android handheld with two AMOLED touchscreens, styled after the Nintendo 3DS XL. It became October 2026’s single biggest breakout handheld search term, pulling in roughly 301,000 searches according to Rising Trends’ gaming trend data. It isn’t trying to run Steam or Xbox Game Pass. It’s built for emulation, and its dual-screen layout is the reason people are searching for it.

Full Spec Comparison Table

Here’s how the core hardware stacks up, pulling exact figures from manufacturer listings and verified reviews rather than rounded marketing numbers.

SpecROG Xbox Ally X20Legion Go 2 (Windows, reviewed)AYN Thor (Max config)
Price (as tested)$1,299.99$1,349 (base $1,099)~$479 (Max 512GB)
Release dateOctober 15, 2026Reviewed January 2026Rolling 2026 batches
Operating systemWindows 11 + Xbox full screen experienceWindows 11 (SteamOS edition unverified)Android 13
CPU/APUAMD Ryzen AI Z2 ExtremeAMD Ryzen Z2 ExtremeQualcomm Snapdragon 8 Gen 2
RAM24GB LPDDR5X32GB16GB
Storage1TB PCIe 4.0 SSD1TB SSD + microSD512GB (expandable via microSD)
Display7.4-inch OLED, 120Hz, 1,400 nits8.8-inch OLED, 1920×1200, 144Hz6-inch 1080p 120Hz AMOLED (upper) + 3.92-inch 60Hz AMOLED (lower)
Battery capacity80Wh74Wh6,000mAh
Weight756g (approx.)920g380g
JoysticksMagnetic TMR (drift-resistant)Detachable, double as mouseHall-effect analog sticks
GPUAMD Radeon (RDNA 3.5, integrated)AMD Radeon (integrated)Adreno (integrated)
ConnectivityUSB4, Wi-Fi 6E2x USB-C, 3.5mm jackUSB-C with DisplayPort 4K60 alt mode

Two things jump out immediately. First, the Legion Go 2 is the heaviest device here by nearly 165 grams over the Ally X20, a gap Stuff’s reviewer Tom Morgan-Freelander described as making it “as big and heavy as gaming handhelds get.” Second, the AYN Thor isn’t playing the same game as the other two at all — its 380g weight and dual-screen layout put it closer to a souped-up 3DS than a Steam Deck rival.

2026 Pricing Breakdown: Every Configuration That Matters

Handheld pricing has gotten messy in 2026, with multiple manufacturers raising prices mid-year. Here’s the full configuration spread across all three families, plus the reference points buyers keep comparing them to.

DeviceConfigurationPrice
ROG Xbox Ally (base)Ryzen Z2 A, 16GB, 60Wh$599.99
ROG Xbox Ally XRyzen AI Z2 Extreme, 24GB, 80Wh$999.99
ROG Xbox Ally X20Same chip, 7.4″ OLED, magnetic sticks$1,299.99
ROG Xbox Ally X20 Anniversary Bundle+ Xreal R1 Edition 20 AR glasses + dBrand case$2,499.99
Legion Go 2 (Windows, base)Entry Ryzen Z2 config$1,099
Legion Go 2 (Windows, as-tested)Ryzen Z2 Extreme, 32GB, 1TB$1,349
Legion Go 2 (SteamOS edition, announced)Lenovo-stated spec, unverified by reviewersFrom $1,199
Legion Go S (officially “Powered by SteamOS”)Ryzen Z1 Extreme, 32GB, 1TB, Lenovo’s own store$1,099.99
Legion Go S (SteamOS, third-party retail)Lower-tier configsFrom ~$594
AYN Thor Max (512GB)Snapdragon 8 Gen 2, 16GB~$479 (post price hike)
AYN Thor Max (1TB)Snapdragon 8 Gen 2, 16GB~$579 (post price hike)
Steam Deck OLED (refurbished, Valve store)512GB$629
Steam Deck OLED (refurbished, Valve store)1TB$759
MSI Claw 8 EX AI+ (for reference)Intel Arc G3 ExtremeFrom $1,499

Note the AYN Thor pricing comes with a caveat: Android Authority reported on April 17, 2026 that AYN introduced the 16GB/512GB Max configuration at $469 and the 16GB/1TB model at $549, then on June 29, 2026 reported a further price increase effective July 3, 2026, raising the Max 512GB by $10 and the Max 1TB by $30. The figures above reflect that post-increase pricing. AYN has also swapped some batches from UFS 4.0 to UFS 3.1 storage to manage supply costs, so buyers should confirm the exact storage spec on any listing before ordering.

For anyone shopping on a tighter budget, a refurbished Steam Deck OLED remains the cheapest route into a full Steam library, and it’s worth reading how that device’s own pricing shifted earlier in 2026 before assuming the Ally X20 or Legion Go 2 is the better value play.

Benchmark Results: Cyberpunk 2077, Forza Horizon 6, and More

Specs on paper only tell half the story. Here’s what independent testing actually measured, pulled from three separate outlets running three different handhelds.

DeviceGame / TestResultSource
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset, native 1920×120032.4 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset + FSR/frame gen71.5 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, RT low preset, native18.8 FPSStuff
Legion Go 2 (Windows)Shadow of the Tomb Raider, Ultra, RT on20 FPSStuff
Legion Go 2 (Windows)Gears Tactics, Ultra, native32.4 FPSStuff
Legion Go 2 (Windows)3DMark Steel Nomad Light3,232 points (23.94 FPS)Stuff
ROG Xbox Ally X20Forza Horizon 6, 1080p, medium settings60 FPSTom’s Guide
Legion Go S (SteamOS vs Windows, same chip)General game testing, identical Ryzen Z2 Go hardwareSteamOS 30-45% faster than WindowsNotebookcheck (via Frames Games)
Steam Deck OLEDInput latency, pre/post SteamOS 3.8 (June 18, 2026)Dropped from 5-8ms to 100-500 microsecondsFrames Games

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

ROG Ally X20, Legion Go 2, and AYN Thor at a Glance

The ASUS ROG Xbox Ally X20 is the “Edition 20” anniversary refresh of the ROG Xbox Ally X, revealed with pricing at Gamescom 2026 after ASUS dodged questions about cost at Computex. Pre-orders opened at $1,299.99 for the standalone unit, with a release date of October 15, 2026, according to Tom’s Guide’s hands-on report. The headline upgrades are a 7.4-inch ROG Nebula HDR OLED panel at 120Hz with 1,400-nit peak brightness, plus magnetic TMR joysticks designed to eliminate the drift that has plagued earlier Ally models.

The Lenovo Legion Go 2 is more complicated. The version that has actually been reviewed — by Stuff, which gave it 4 out of 5 stars — ships with Windows 11 and starts at $1,099, rising to $1,349 for the configuration tested. Lenovo has also announced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” hardware list still did not include it, and no major outlet had independently reviewed that SteamOS build, per reporting from Frames Games. That distinction matters a lot for anyone deciding between these three devices.

The AYN Thor is the outlier: a clamshell Android handheld with two AMOLED touchscreens, styled after the Nintendo 3DS XL. It became October 2026’s single biggest breakout handheld search term, pulling in roughly 301,000 searches according to Rising Trends’ gaming trend data. It isn’t trying to run Steam or Xbox Game Pass. It’s built for emulation, and its dual-screen layout is the reason people are searching for it.

Full Spec Comparison Table

Here’s how the core hardware stacks up, pulling exact figures from manufacturer listings and verified reviews rather than rounded marketing numbers.

SpecROG Xbox Ally X20Legion Go 2 (Windows, reviewed)AYN Thor (Max config)
Price (as tested)$1,299.99$1,349 (base $1,099)~$479 (Max 512GB)
Release dateOctober 15, 2026Reviewed January 2026Rolling 2026 batches
Operating systemWindows 11 + Xbox full screen experienceWindows 11 (SteamOS edition unverified)Android 13
CPU/APUAMD Ryzen AI Z2 ExtremeAMD Ryzen Z2 ExtremeQualcomm Snapdragon 8 Gen 2
RAM24GB LPDDR5X32GB16GB
Storage1TB PCIe 4.0 SSD1TB SSD + microSD512GB (expandable via microSD)
Display7.4-inch OLED, 120Hz, 1,400 nits8.8-inch OLED, 1920×1200, 144Hz6-inch 1080p 120Hz AMOLED (upper) + 3.92-inch 60Hz AMOLED (lower)
Battery capacity80Wh74Wh6,000mAh
Weight756g (approx.)920g380g
JoysticksMagnetic TMR (drift-resistant)Detachable, double as mouseHall-effect analog sticks
GPUAMD Radeon (RDNA 3.5, integrated)AMD Radeon (integrated)Adreno (integrated)
ConnectivityUSB4, Wi-Fi 6E2x USB-C, 3.5mm jackUSB-C with DisplayPort 4K60 alt mode

Two things jump out immediately. First, the Legion Go 2 is the heaviest device here by nearly 165 grams over the Ally X20, a gap Stuff’s reviewer Tom Morgan-Freelander described as making it “as big and heavy as gaming handhelds get.” Second, the AYN Thor isn’t playing the same game as the other two at all — its 380g weight and dual-screen layout put it closer to a souped-up 3DS than a Steam Deck rival.

2026 Pricing Breakdown: Every Configuration That Matters

Handheld pricing has gotten messy in 2026, with multiple manufacturers raising prices mid-year. Here’s the full configuration spread across all three families, plus the reference points buyers keep comparing them to.

DeviceConfigurationPrice
ROG Xbox Ally (base)Ryzen Z2 A, 16GB, 60Wh$599.99
ROG Xbox Ally XRyzen AI Z2 Extreme, 24GB, 80Wh$999.99
ROG Xbox Ally X20Same chip, 7.4″ OLED, magnetic sticks$1,299.99
ROG Xbox Ally X20 Anniversary Bundle+ Xreal R1 Edition 20 AR glasses + dBrand case$2,499.99
Legion Go 2 (Windows, base)Entry Ryzen Z2 config$1,099
Legion Go 2 (Windows, as-tested)Ryzen Z2 Extreme, 32GB, 1TB$1,349
Legion Go 2 (SteamOS edition, announced)Lenovo-stated spec, unverified by reviewersFrom $1,199
Legion Go S (officially “Powered by SteamOS”)Ryzen Z1 Extreme, 32GB, 1TB, Lenovo’s own store$1,099.99
Legion Go S (SteamOS, third-party retail)Lower-tier configsFrom ~$594
AYN Thor Max (512GB)Snapdragon 8 Gen 2, 16GB~$479 (post price hike)
AYN Thor Max (1TB)Snapdragon 8 Gen 2, 16GB~$579 (post price hike)
Steam Deck OLED (refurbished, Valve store)512GB$629
Steam Deck OLED (refurbished, Valve store)1TB$759
MSI Claw 8 EX AI+ (for reference)Intel Arc G3 ExtremeFrom $1,499

Note the AYN Thor pricing comes with a caveat: Android Authority reported on April 17, 2026 that AYN introduced the 16GB/512GB Max configuration at $469 and the 16GB/1TB model at $549, then on June 29, 2026 reported a further price increase effective July 3, 2026, raising the Max 512GB by $10 and the Max 1TB by $30. The figures above reflect that post-increase pricing. AYN has also swapped some batches from UFS 4.0 to UFS 3.1 storage to manage supply costs, so buyers should confirm the exact storage spec on any listing before ordering.

For anyone shopping on a tighter budget, a refurbished Steam Deck OLED remains the cheapest route into a full Steam library, and it’s worth reading how that device’s own pricing shifted earlier in 2026 before assuming the Ally X20 or Legion Go 2 is the better value play.

Benchmark Results: Cyberpunk 2077, Forza Horizon 6, and More

Specs on paper only tell half the story. Here’s what independent testing actually measured, pulled from three separate outlets running three different handhelds.

DeviceGame / TestResultSource
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset, native 1920×120032.4 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset + FSR/frame gen71.5 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, RT low preset, native18.8 FPSStuff
Legion Go 2 (Windows)Shadow of the Tomb Raider, Ultra, RT on20 FPSStuff
Legion Go 2 (Windows)Gears Tactics, Ultra, native32.4 FPSStuff
Legion Go 2 (Windows)3DMark Steel Nomad Light3,232 points (23.94 FPS)Stuff
ROG Xbox Ally X20Forza Horizon 6, 1080p, medium settings60 FPSTom’s Guide
Legion Go S (SteamOS vs Windows, same chip)General game testing, identical Ryzen Z2 Go hardwareSteamOS 30-45% faster than WindowsNotebookcheck (via Frames Games)
Steam Deck OLEDInput latency, pre/post SteamOS 3.8 (June 18, 2026)Dropped from 5-8ms to 100-500 microsecondsFrames Games

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

It’s also worth clearing up a naming mix-up early: ASUS officially sells this device as the ROG Xbox Ally X20, part of the co-branded Xbox partnership line rather than a standalone “ROG Ally.” Some retail listings and aggregators still shorten it to “ROG Ally X20,” which is accurate shorthand but not the full product name you’ll see on ASUS’s own store.

ROG Ally X20, Legion Go 2, and AYN Thor at a Glance

The ASUS ROG Xbox Ally X20 is the “Edition 20” anniversary refresh of the ROG Xbox Ally X, revealed with pricing at Gamescom 2026 after ASUS dodged questions about cost at Computex. Pre-orders opened at $1,299.99 for the standalone unit, with a release date of October 15, 2026, according to Tom’s Guide’s hands-on report. The headline upgrades are a 7.4-inch ROG Nebula HDR OLED panel at 120Hz with 1,400-nit peak brightness, plus magnetic TMR joysticks designed to eliminate the drift that has plagued earlier Ally models.

The Lenovo Legion Go 2 is more complicated. The version that has actually been reviewed — by Stuff, which gave it 4 out of 5 stars — ships with Windows 11 and starts at $1,099, rising to $1,349 for the configuration tested. Lenovo has also announced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” hardware list still did not include it, and no major outlet had independently reviewed that SteamOS build, per reporting from Frames Games. That distinction matters a lot for anyone deciding between these three devices.

The AYN Thor is the outlier: a clamshell Android handheld with two AMOLED touchscreens, styled after the Nintendo 3DS XL. It became October 2026’s single biggest breakout handheld search term, pulling in roughly 301,000 searches according to Rising Trends’ gaming trend data. It isn’t trying to run Steam or Xbox Game Pass. It’s built for emulation, and its dual-screen layout is the reason people are searching for it.

Full Spec Comparison Table

Here’s how the core hardware stacks up, pulling exact figures from manufacturer listings and verified reviews rather than rounded marketing numbers.

SpecROG Xbox Ally X20Legion Go 2 (Windows, reviewed)AYN Thor (Max config)
Price (as tested)$1,299.99$1,349 (base $1,099)~$479 (Max 512GB)
Release dateOctober 15, 2026Reviewed January 2026Rolling 2026 batches
Operating systemWindows 11 + Xbox full screen experienceWindows 11 (SteamOS edition unverified)Android 13
CPU/APUAMD Ryzen AI Z2 ExtremeAMD Ryzen Z2 ExtremeQualcomm Snapdragon 8 Gen 2
RAM24GB LPDDR5X32GB16GB
Storage1TB PCIe 4.0 SSD1TB SSD + microSD512GB (expandable via microSD)
Display7.4-inch OLED, 120Hz, 1,400 nits8.8-inch OLED, 1920×1200, 144Hz6-inch 1080p 120Hz AMOLED (upper) + 3.92-inch 60Hz AMOLED (lower)
Battery capacity80Wh74Wh6,000mAh
Weight756g (approx.)920g380g
JoysticksMagnetic TMR (drift-resistant)Detachable, double as mouseHall-effect analog sticks
GPUAMD Radeon (RDNA 3.5, integrated)AMD Radeon (integrated)Adreno (integrated)
ConnectivityUSB4, Wi-Fi 6E2x USB-C, 3.5mm jackUSB-C with DisplayPort 4K60 alt mode

Two things jump out immediately. First, the Legion Go 2 is the heaviest device here by nearly 165 grams over the Ally X20, a gap Stuff’s reviewer Tom Morgan-Freelander described as making it “as big and heavy as gaming handhelds get.” Second, the AYN Thor isn’t playing the same game as the other two at all — its 380g weight and dual-screen layout put it closer to a souped-up 3DS than a Steam Deck rival.

2026 Pricing Breakdown: Every Configuration That Matters

Handheld pricing has gotten messy in 2026, with multiple manufacturers raising prices mid-year. Here’s the full configuration spread across all three families, plus the reference points buyers keep comparing them to.

DeviceConfigurationPrice
ROG Xbox Ally (base)Ryzen Z2 A, 16GB, 60Wh$599.99
ROG Xbox Ally XRyzen AI Z2 Extreme, 24GB, 80Wh$999.99
ROG Xbox Ally X20Same chip, 7.4″ OLED, magnetic sticks$1,299.99
ROG Xbox Ally X20 Anniversary Bundle+ Xreal R1 Edition 20 AR glasses + dBrand case$2,499.99
Legion Go 2 (Windows, base)Entry Ryzen Z2 config$1,099
Legion Go 2 (Windows, as-tested)Ryzen Z2 Extreme, 32GB, 1TB$1,349
Legion Go 2 (SteamOS edition, announced)Lenovo-stated spec, unverified by reviewersFrom $1,199
Legion Go S (officially “Powered by SteamOS”)Ryzen Z1 Extreme, 32GB, 1TB, Lenovo’s own store$1,099.99
Legion Go S (SteamOS, third-party retail)Lower-tier configsFrom ~$594
AYN Thor Max (512GB)Snapdragon 8 Gen 2, 16GB~$479 (post price hike)
AYN Thor Max (1TB)Snapdragon 8 Gen 2, 16GB~$579 (post price hike)
Steam Deck OLED (refurbished, Valve store)512GB$629
Steam Deck OLED (refurbished, Valve store)1TB$759
MSI Claw 8 EX AI+ (for reference)Intel Arc G3 ExtremeFrom $1,499

Note the AYN Thor pricing comes with a caveat: Android Authority reported on April 17, 2026 that AYN introduced the 16GB/512GB Max configuration at $469 and the 16GB/1TB model at $549, then on June 29, 2026 reported a further price increase effective July 3, 2026, raising the Max 512GB by $10 and the Max 1TB by $30. The figures above reflect that post-increase pricing. AYN has also swapped some batches from UFS 4.0 to UFS 3.1 storage to manage supply costs, so buyers should confirm the exact storage spec on any listing before ordering.

For anyone shopping on a tighter budget, a refurbished Steam Deck OLED remains the cheapest route into a full Steam library, and it’s worth reading how that device’s own pricing shifted earlier in 2026 before assuming the Ally X20 or Legion Go 2 is the better value play.

Benchmark Results: Cyberpunk 2077, Forza Horizon 6, and More

Specs on paper only tell half the story. Here’s what independent testing actually measured, pulled from three separate outlets running three different handhelds.

DeviceGame / TestResultSource
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset, native 1920×120032.4 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset + FSR/frame gen71.5 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, RT low preset, native18.8 FPSStuff
Legion Go 2 (Windows)Shadow of the Tomb Raider, Ultra, RT on20 FPSStuff
Legion Go 2 (Windows)Gears Tactics, Ultra, native32.4 FPSStuff
Legion Go 2 (Windows)3DMark Steel Nomad Light3,232 points (23.94 FPS)Stuff
ROG Xbox Ally X20Forza Horizon 6, 1080p, medium settings60 FPSTom’s Guide
Legion Go S (SteamOS vs Windows, same chip)General game testing, identical Ryzen Z2 Go hardwareSteamOS 30-45% faster than WindowsNotebookcheck (via Frames Games)
Steam Deck OLEDInput latency, pre/post SteamOS 3.8 (June 18, 2026)Dropped from 5-8ms to 100-500 microsecondsFrames Games

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

The handheld gaming market has fragmented into at least three separate libraries that barely overlap: Nintendo exclusives locked to Switch hardware, Steam and PC storefronts accessible through Windows or SteamOS, and old-console emulation that Android handhelds handle better than either. That fragmentation is exactly why this particular trio makes sense to compare together — each one picks a different library to optimize for, rather than all three chasing the same buyer. Rising Trends’ October 2026 gaming data put the AYN Thor at roughly 301,000 searches as a pure breakout term, a bigger jump than any single Windows handheld logged that month, which signals real buyer confusion about where an Android dual-screen device even fits next to a Steam Deck or an Xbox-branded handheld.

It’s also worth clearing up a naming mix-up early: ASUS officially sells this device as the ROG Xbox Ally X20, part of the co-branded Xbox partnership line rather than a standalone “ROG Ally.” Some retail listings and aggregators still shorten it to “ROG Ally X20,” which is accurate shorthand but not the full product name you’ll see on ASUS’s own store.

ROG Ally X20, Legion Go 2, and AYN Thor at a Glance

The ASUS ROG Xbox Ally X20 is the “Edition 20” anniversary refresh of the ROG Xbox Ally X, revealed with pricing at Gamescom 2026 after ASUS dodged questions about cost at Computex. Pre-orders opened at $1,299.99 for the standalone unit, with a release date of October 15, 2026, according to Tom’s Guide’s hands-on report. The headline upgrades are a 7.4-inch ROG Nebula HDR OLED panel at 120Hz with 1,400-nit peak brightness, plus magnetic TMR joysticks designed to eliminate the drift that has plagued earlier Ally models.

The Lenovo Legion Go 2 is more complicated. The version that has actually been reviewed — by Stuff, which gave it 4 out of 5 stars — ships with Windows 11 and starts at $1,099, rising to $1,349 for the configuration tested. Lenovo has also announced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” hardware list still did not include it, and no major outlet had independently reviewed that SteamOS build, per reporting from Frames Games. That distinction matters a lot for anyone deciding between these three devices.

The AYN Thor is the outlier: a clamshell Android handheld with two AMOLED touchscreens, styled after the Nintendo 3DS XL. It became October 2026’s single biggest breakout handheld search term, pulling in roughly 301,000 searches according to Rising Trends’ gaming trend data. It isn’t trying to run Steam or Xbox Game Pass. It’s built for emulation, and its dual-screen layout is the reason people are searching for it.

Full Spec Comparison Table

Here’s how the core hardware stacks up, pulling exact figures from manufacturer listings and verified reviews rather than rounded marketing numbers.

SpecROG Xbox Ally X20Legion Go 2 (Windows, reviewed)AYN Thor (Max config)
Price (as tested)$1,299.99$1,349 (base $1,099)~$479 (Max 512GB)
Release dateOctober 15, 2026Reviewed January 2026Rolling 2026 batches
Operating systemWindows 11 + Xbox full screen experienceWindows 11 (SteamOS edition unverified)Android 13
CPU/APUAMD Ryzen AI Z2 ExtremeAMD Ryzen Z2 ExtremeQualcomm Snapdragon 8 Gen 2
RAM24GB LPDDR5X32GB16GB
Storage1TB PCIe 4.0 SSD1TB SSD + microSD512GB (expandable via microSD)
Display7.4-inch OLED, 120Hz, 1,400 nits8.8-inch OLED, 1920×1200, 144Hz6-inch 1080p 120Hz AMOLED (upper) + 3.92-inch 60Hz AMOLED (lower)
Battery capacity80Wh74Wh6,000mAh
Weight756g (approx.)920g380g
JoysticksMagnetic TMR (drift-resistant)Detachable, double as mouseHall-effect analog sticks
GPUAMD Radeon (RDNA 3.5, integrated)AMD Radeon (integrated)Adreno (integrated)
ConnectivityUSB4, Wi-Fi 6E2x USB-C, 3.5mm jackUSB-C with DisplayPort 4K60 alt mode

Two things jump out immediately. First, the Legion Go 2 is the heaviest device here by nearly 165 grams over the Ally X20, a gap Stuff’s reviewer Tom Morgan-Freelander described as making it “as big and heavy as gaming handhelds get.” Second, the AYN Thor isn’t playing the same game as the other two at all — its 380g weight and dual-screen layout put it closer to a souped-up 3DS than a Steam Deck rival.

2026 Pricing Breakdown: Every Configuration That Matters

Handheld pricing has gotten messy in 2026, with multiple manufacturers raising prices mid-year. Here’s the full configuration spread across all three families, plus the reference points buyers keep comparing them to.

DeviceConfigurationPrice
ROG Xbox Ally (base)Ryzen Z2 A, 16GB, 60Wh$599.99
ROG Xbox Ally XRyzen AI Z2 Extreme, 24GB, 80Wh$999.99
ROG Xbox Ally X20Same chip, 7.4″ OLED, magnetic sticks$1,299.99
ROG Xbox Ally X20 Anniversary Bundle+ Xreal R1 Edition 20 AR glasses + dBrand case$2,499.99
Legion Go 2 (Windows, base)Entry Ryzen Z2 config$1,099
Legion Go 2 (Windows, as-tested)Ryzen Z2 Extreme, 32GB, 1TB$1,349
Legion Go 2 (SteamOS edition, announced)Lenovo-stated spec, unverified by reviewersFrom $1,199
Legion Go S (officially “Powered by SteamOS”)Ryzen Z1 Extreme, 32GB, 1TB, Lenovo’s own store$1,099.99
Legion Go S (SteamOS, third-party retail)Lower-tier configsFrom ~$594
AYN Thor Max (512GB)Snapdragon 8 Gen 2, 16GB~$479 (post price hike)
AYN Thor Max (1TB)Snapdragon 8 Gen 2, 16GB~$579 (post price hike)
Steam Deck OLED (refurbished, Valve store)512GB$629
Steam Deck OLED (refurbished, Valve store)1TB$759
MSI Claw 8 EX AI+ (for reference)Intel Arc G3 ExtremeFrom $1,499

Note the AYN Thor pricing comes with a caveat: Android Authority reported on April 17, 2026 that AYN introduced the 16GB/512GB Max configuration at $469 and the 16GB/1TB model at $549, then on June 29, 2026 reported a further price increase effective July 3, 2026, raising the Max 512GB by $10 and the Max 1TB by $30. The figures above reflect that post-increase pricing. AYN has also swapped some batches from UFS 4.0 to UFS 3.1 storage to manage supply costs, so buyers should confirm the exact storage spec on any listing before ordering.

For anyone shopping on a tighter budget, a refurbished Steam Deck OLED remains the cheapest route into a full Steam library, and it’s worth reading how that device’s own pricing shifted earlier in 2026 before assuming the Ally X20 or Legion Go 2 is the better value play.

Benchmark Results: Cyberpunk 2077, Forza Horizon 6, and More

Specs on paper only tell half the story. Here’s what independent testing actually measured, pulled from three separate outlets running three different handhelds.

DeviceGame / TestResultSource
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset, native 1920×120032.4 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset + FSR/frame gen71.5 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, RT low preset, native18.8 FPSStuff
Legion Go 2 (Windows)Shadow of the Tomb Raider, Ultra, RT on20 FPSStuff
Legion Go 2 (Windows)Gears Tactics, Ultra, native32.4 FPSStuff
Legion Go 2 (Windows)3DMark Steel Nomad Light3,232 points (23.94 FPS)Stuff
ROG Xbox Ally X20Forza Horizon 6, 1080p, medium settings60 FPSTom’s Guide
Legion Go S (SteamOS vs Windows, same chip)General game testing, identical Ryzen Z2 Go hardwareSteamOS 30-45% faster than WindowsNotebookcheck (via Frames Games)
Steam Deck OLEDInput latency, pre/post SteamOS 3.8 (June 18, 2026)Dropped from 5-8ms to 100-500 microsecondsFrames Games

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

This comparison pulls together verified specs, pricing, and benchmark numbers from hands-on testing at Tom’s Guide, Stuff, Notebookcheck, and Galaxus to work out which of these 2026 handhelds earns its price tag. It is not a rehash of last year’s Steam Deck and ROG Ally X matchup — this is about the newest generation of hardware, including a handheld (the AYN Thor) that doesn’t run Windows or SteamOS at all.

The handheld gaming market has fragmented into at least three separate libraries that barely overlap: Nintendo exclusives locked to Switch hardware, Steam and PC storefronts accessible through Windows or SteamOS, and old-console emulation that Android handhelds handle better than either. That fragmentation is exactly why this particular trio makes sense to compare together — each one picks a different library to optimize for, rather than all three chasing the same buyer. Rising Trends’ October 2026 gaming data put the AYN Thor at roughly 301,000 searches as a pure breakout term, a bigger jump than any single Windows handheld logged that month, which signals real buyer confusion about where an Android dual-screen device even fits next to a Steam Deck or an Xbox-branded handheld.

It’s also worth clearing up a naming mix-up early: ASUS officially sells this device as the ROG Xbox Ally X20, part of the co-branded Xbox partnership line rather than a standalone “ROG Ally.” Some retail listings and aggregators still shorten it to “ROG Ally X20,” which is accurate shorthand but not the full product name you’ll see on ASUS’s own store.

ROG Ally X20, Legion Go 2, and AYN Thor at a Glance

The ASUS ROG Xbox Ally X20 is the “Edition 20” anniversary refresh of the ROG Xbox Ally X, revealed with pricing at Gamescom 2026 after ASUS dodged questions about cost at Computex. Pre-orders opened at $1,299.99 for the standalone unit, with a release date of October 15, 2026, according to Tom’s Guide’s hands-on report. The headline upgrades are a 7.4-inch ROG Nebula HDR OLED panel at 120Hz with 1,400-nit peak brightness, plus magnetic TMR joysticks designed to eliminate the drift that has plagued earlier Ally models.

The Lenovo Legion Go 2 is more complicated. The version that has actually been reviewed — by Stuff, which gave it 4 out of 5 stars — ships with Windows 11 and starts at $1,099, rising to $1,349 for the configuration tested. Lenovo has also announced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” hardware list still did not include it, and no major outlet had independently reviewed that SteamOS build, per reporting from Frames Games. That distinction matters a lot for anyone deciding between these three devices.

The AYN Thor is the outlier: a clamshell Android handheld with two AMOLED touchscreens, styled after the Nintendo 3DS XL. It became October 2026’s single biggest breakout handheld search term, pulling in roughly 301,000 searches according to Rising Trends’ gaming trend data. It isn’t trying to run Steam or Xbox Game Pass. It’s built for emulation, and its dual-screen layout is the reason people are searching for it.

Full Spec Comparison Table

Here’s how the core hardware stacks up, pulling exact figures from manufacturer listings and verified reviews rather than rounded marketing numbers.

SpecROG Xbox Ally X20Legion Go 2 (Windows, reviewed)AYN Thor (Max config)
Price (as tested)$1,299.99$1,349 (base $1,099)~$479 (Max 512GB)
Release dateOctober 15, 2026Reviewed January 2026Rolling 2026 batches
Operating systemWindows 11 + Xbox full screen experienceWindows 11 (SteamOS edition unverified)Android 13
CPU/APUAMD Ryzen AI Z2 ExtremeAMD Ryzen Z2 ExtremeQualcomm Snapdragon 8 Gen 2
RAM24GB LPDDR5X32GB16GB
Storage1TB PCIe 4.0 SSD1TB SSD + microSD512GB (expandable via microSD)
Display7.4-inch OLED, 120Hz, 1,400 nits8.8-inch OLED, 1920×1200, 144Hz6-inch 1080p 120Hz AMOLED (upper) + 3.92-inch 60Hz AMOLED (lower)
Battery capacity80Wh74Wh6,000mAh
Weight756g (approx.)920g380g
JoysticksMagnetic TMR (drift-resistant)Detachable, double as mouseHall-effect analog sticks
GPUAMD Radeon (RDNA 3.5, integrated)AMD Radeon (integrated)Adreno (integrated)
ConnectivityUSB4, Wi-Fi 6E2x USB-C, 3.5mm jackUSB-C with DisplayPort 4K60 alt mode

Two things jump out immediately. First, the Legion Go 2 is the heaviest device here by nearly 165 grams over the Ally X20, a gap Stuff’s reviewer Tom Morgan-Freelander described as making it “as big and heavy as gaming handhelds get.” Second, the AYN Thor isn’t playing the same game as the other two at all — its 380g weight and dual-screen layout put it closer to a souped-up 3DS than a Steam Deck rival.

2026 Pricing Breakdown: Every Configuration That Matters

Handheld pricing has gotten messy in 2026, with multiple manufacturers raising prices mid-year. Here’s the full configuration spread across all three families, plus the reference points buyers keep comparing them to.

DeviceConfigurationPrice
ROG Xbox Ally (base)Ryzen Z2 A, 16GB, 60Wh$599.99
ROG Xbox Ally XRyzen AI Z2 Extreme, 24GB, 80Wh$999.99
ROG Xbox Ally X20Same chip, 7.4″ OLED, magnetic sticks$1,299.99
ROG Xbox Ally X20 Anniversary Bundle+ Xreal R1 Edition 20 AR glasses + dBrand case$2,499.99
Legion Go 2 (Windows, base)Entry Ryzen Z2 config$1,099
Legion Go 2 (Windows, as-tested)Ryzen Z2 Extreme, 32GB, 1TB$1,349
Legion Go 2 (SteamOS edition, announced)Lenovo-stated spec, unverified by reviewersFrom $1,199
Legion Go S (officially “Powered by SteamOS”)Ryzen Z1 Extreme, 32GB, 1TB, Lenovo’s own store$1,099.99
Legion Go S (SteamOS, third-party retail)Lower-tier configsFrom ~$594
AYN Thor Max (512GB)Snapdragon 8 Gen 2, 16GB~$479 (post price hike)
AYN Thor Max (1TB)Snapdragon 8 Gen 2, 16GB~$579 (post price hike)
Steam Deck OLED (refurbished, Valve store)512GB$629
Steam Deck OLED (refurbished, Valve store)1TB$759
MSI Claw 8 EX AI+ (for reference)Intel Arc G3 ExtremeFrom $1,499

Note the AYN Thor pricing comes with a caveat: Android Authority reported on April 17, 2026 that AYN introduced the 16GB/512GB Max configuration at $469 and the 16GB/1TB model at $549, then on June 29, 2026 reported a further price increase effective July 3, 2026, raising the Max 512GB by $10 and the Max 1TB by $30. The figures above reflect that post-increase pricing. AYN has also swapped some batches from UFS 4.0 to UFS 3.1 storage to manage supply costs, so buyers should confirm the exact storage spec on any listing before ordering.

For anyone shopping on a tighter budget, a refurbished Steam Deck OLED remains the cheapest route into a full Steam library, and it’s worth reading how that device’s own pricing shifted earlier in 2026 before assuming the Ally X20 or Legion Go 2 is the better value play.

Benchmark Results: Cyberpunk 2077, Forza Horizon 6, and More

Specs on paper only tell half the story. Here’s what independent testing actually measured, pulled from three separate outlets running three different handhelds.

DeviceGame / TestResultSource
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset, native 1920×120032.4 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset + FSR/frame gen71.5 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, RT low preset, native18.8 FPSStuff
Legion Go 2 (Windows)Shadow of the Tomb Raider, Ultra, RT on20 FPSStuff
Legion Go 2 (Windows)Gears Tactics, Ultra, native32.4 FPSStuff
Legion Go 2 (Windows)3DMark Steel Nomad Light3,232 points (23.94 FPS)Stuff
ROG Xbox Ally X20Forza Horizon 6, 1080p, medium settings60 FPSTom’s Guide
Legion Go S (SteamOS vs Windows, same chip)General game testing, identical Ryzen Z2 Go hardwareSteamOS 30-45% faster than WindowsNotebookcheck (via Frames Games)
Steam Deck OLEDInput latency, pre/post SteamOS 3.8 (June 18, 2026)Dropped from 5-8ms to 100-500 microsecondsFrames Games

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Three gaming handhelds launched within weeks of each other in 2026, and each one bets on a completely different operating system to win your money. The ASUS ROG Xbox Ally X20 doubles down on Windows dressed up as an Xbox. The Lenovo Legion Go 2 is caught mid-transition from Windows 11 to a SteamOS edition that Valve itself hasn’t officially certified yet. And the AYN Thor ditches PC gaming altogether for a dual-screen Android design built around emulation. Three different bets, three different price tags, and three very different answers to “what should I actually buy.”

This comparison pulls together verified specs, pricing, and benchmark numbers from hands-on testing at Tom’s Guide, Stuff, Notebookcheck, and Galaxus to work out which of these 2026 handhelds earns its price tag. It is not a rehash of last year’s Steam Deck and ROG Ally X matchup — this is about the newest generation of hardware, including a handheld (the AYN Thor) that doesn’t run Windows or SteamOS at all.

The handheld gaming market has fragmented into at least three separate libraries that barely overlap: Nintendo exclusives locked to Switch hardware, Steam and PC storefronts accessible through Windows or SteamOS, and old-console emulation that Android handhelds handle better than either. That fragmentation is exactly why this particular trio makes sense to compare together — each one picks a different library to optimize for, rather than all three chasing the same buyer. Rising Trends’ October 2026 gaming data put the AYN Thor at roughly 301,000 searches as a pure breakout term, a bigger jump than any single Windows handheld logged that month, which signals real buyer confusion about where an Android dual-screen device even fits next to a Steam Deck or an Xbox-branded handheld.

It’s also worth clearing up a naming mix-up early: ASUS officially sells this device as the ROG Xbox Ally X20, part of the co-branded Xbox partnership line rather than a standalone “ROG Ally.” Some retail listings and aggregators still shorten it to “ROG Ally X20,” which is accurate shorthand but not the full product name you’ll see on ASUS’s own store.

ROG Ally X20, Legion Go 2, and AYN Thor at a Glance

The ASUS ROG Xbox Ally X20 is the “Edition 20” anniversary refresh of the ROG Xbox Ally X, revealed with pricing at Gamescom 2026 after ASUS dodged questions about cost at Computex. Pre-orders opened at $1,299.99 for the standalone unit, with a release date of October 15, 2026, according to Tom’s Guide’s hands-on report. The headline upgrades are a 7.4-inch ROG Nebula HDR OLED panel at 120Hz with 1,400-nit peak brightness, plus magnetic TMR joysticks designed to eliminate the drift that has plagued earlier Ally models.

The Lenovo Legion Go 2 is more complicated. The version that has actually been reviewed — by Stuff, which gave it 4 out of 5 stars — ships with Windows 11 and starts at $1,099, rising to $1,349 for the configuration tested. Lenovo has also announced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” hardware list still did not include it, and no major outlet had independently reviewed that SteamOS build, per reporting from Frames Games. That distinction matters a lot for anyone deciding between these three devices.

The AYN Thor is the outlier: a clamshell Android handheld with two AMOLED touchscreens, styled after the Nintendo 3DS XL. It became October 2026’s single biggest breakout handheld search term, pulling in roughly 301,000 searches according to Rising Trends’ gaming trend data. It isn’t trying to run Steam or Xbox Game Pass. It’s built for emulation, and its dual-screen layout is the reason people are searching for it.

Full Spec Comparison Table

Here’s how the core hardware stacks up, pulling exact figures from manufacturer listings and verified reviews rather than rounded marketing numbers.

SpecROG Xbox Ally X20Legion Go 2 (Windows, reviewed)AYN Thor (Max config)
Price (as tested)$1,299.99$1,349 (base $1,099)~$479 (Max 512GB)
Release dateOctober 15, 2026Reviewed January 2026Rolling 2026 batches
Operating systemWindows 11 + Xbox full screen experienceWindows 11 (SteamOS edition unverified)Android 13
CPU/APUAMD Ryzen AI Z2 ExtremeAMD Ryzen Z2 ExtremeQualcomm Snapdragon 8 Gen 2
RAM24GB LPDDR5X32GB16GB
Storage1TB PCIe 4.0 SSD1TB SSD + microSD512GB (expandable via microSD)
Display7.4-inch OLED, 120Hz, 1,400 nits8.8-inch OLED, 1920×1200, 144Hz6-inch 1080p 120Hz AMOLED (upper) + 3.92-inch 60Hz AMOLED (lower)
Battery capacity80Wh74Wh6,000mAh
Weight756g (approx.)920g380g
JoysticksMagnetic TMR (drift-resistant)Detachable, double as mouseHall-effect analog sticks
GPUAMD Radeon (RDNA 3.5, integrated)AMD Radeon (integrated)Adreno (integrated)
ConnectivityUSB4, Wi-Fi 6E2x USB-C, 3.5mm jackUSB-C with DisplayPort 4K60 alt mode

Two things jump out immediately. First, the Legion Go 2 is the heaviest device here by nearly 165 grams over the Ally X20, a gap Stuff’s reviewer Tom Morgan-Freelander described as making it “as big and heavy as gaming handhelds get.” Second, the AYN Thor isn’t playing the same game as the other two at all — its 380g weight and dual-screen layout put it closer to a souped-up 3DS than a Steam Deck rival.

2026 Pricing Breakdown: Every Configuration That Matters

Handheld pricing has gotten messy in 2026, with multiple manufacturers raising prices mid-year. Here’s the full configuration spread across all three families, plus the reference points buyers keep comparing them to.

DeviceConfigurationPrice
ROG Xbox Ally (base)Ryzen Z2 A, 16GB, 60Wh$599.99
ROG Xbox Ally XRyzen AI Z2 Extreme, 24GB, 80Wh$999.99
ROG Xbox Ally X20Same chip, 7.4″ OLED, magnetic sticks$1,299.99
ROG Xbox Ally X20 Anniversary Bundle+ Xreal R1 Edition 20 AR glasses + dBrand case$2,499.99
Legion Go 2 (Windows, base)Entry Ryzen Z2 config$1,099
Legion Go 2 (Windows, as-tested)Ryzen Z2 Extreme, 32GB, 1TB$1,349
Legion Go 2 (SteamOS edition, announced)Lenovo-stated spec, unverified by reviewersFrom $1,199
Legion Go S (officially “Powered by SteamOS”)Ryzen Z1 Extreme, 32GB, 1TB, Lenovo’s own store$1,099.99
Legion Go S (SteamOS, third-party retail)Lower-tier configsFrom ~$594
AYN Thor Max (512GB)Snapdragon 8 Gen 2, 16GB~$479 (post price hike)
AYN Thor Max (1TB)Snapdragon 8 Gen 2, 16GB~$579 (post price hike)
Steam Deck OLED (refurbished, Valve store)512GB$629
Steam Deck OLED (refurbished, Valve store)1TB$759
MSI Claw 8 EX AI+ (for reference)Intel Arc G3 ExtremeFrom $1,499

Note the AYN Thor pricing comes with a caveat: Android Authority reported on April 17, 2026 that AYN introduced the 16GB/512GB Max configuration at $469 and the 16GB/1TB model at $549, then on June 29, 2026 reported a further price increase effective July 3, 2026, raising the Max 512GB by $10 and the Max 1TB by $30. The figures above reflect that post-increase pricing. AYN has also swapped some batches from UFS 4.0 to UFS 3.1 storage to manage supply costs, so buyers should confirm the exact storage spec on any listing before ordering.

For anyone shopping on a tighter budget, a refurbished Steam Deck OLED remains the cheapest route into a full Steam library, and it’s worth reading how that device’s own pricing shifted earlier in 2026 before assuming the Ally X20 or Legion Go 2 is the better value play.

Benchmark Results: Cyberpunk 2077, Forza Horizon 6, and More

Specs on paper only tell half the story. Here’s what independent testing actually measured, pulled from three separate outlets running three different handhelds.

DeviceGame / TestResultSource
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset, native 1920×120032.4 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset + FSR/frame gen71.5 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, RT low preset, native18.8 FPSStuff
Legion Go 2 (Windows)Shadow of the Tomb Raider, Ultra, RT on20 FPSStuff
Legion Go 2 (Windows)Gears Tactics, Ultra, native32.4 FPSStuff
Legion Go 2 (Windows)3DMark Steel Nomad Light3,232 points (23.94 FPS)Stuff
ROG Xbox Ally X20Forza Horizon 6, 1080p, medium settings60 FPSTom’s Guide
Legion Go S (SteamOS vs Windows, same chip)General game testing, identical Ryzen Z2 Go hardwareSteamOS 30-45% faster than WindowsNotebookcheck (via Frames Games)
Steam Deck OLEDInput latency, pre/post SteamOS 3.8 (June 18, 2026)Dropped from 5-8ms to 100-500 microsecondsFrames Games

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Three gaming handhelds launched within weeks of each other in 2026, and each one bets on a completely different operating system to win your money. The ASUS ROG Xbox Ally X20 doubles down on Windows dressed up as an Xbox. The Lenovo Legion Go 2 is caught mid-transition from Windows 11 to a SteamOS edition that Valve itself hasn’t officially certified yet. And the AYN Thor ditches PC gaming altogether for a dual-screen Android design built around emulation. Three different bets, three different price tags, and three very different answers to “what should I actually buy.”

This comparison pulls together verified specs, pricing, and benchmark numbers from hands-on testing at Tom’s Guide, Stuff, Notebookcheck, and Galaxus to work out which of these 2026 handhelds earns its price tag. It is not a rehash of last year’s Steam Deck and ROG Ally X matchup — this is about the newest generation of hardware, including a handheld (the AYN Thor) that doesn’t run Windows or SteamOS at all.

The handheld gaming market has fragmented into at least three separate libraries that barely overlap: Nintendo exclusives locked to Switch hardware, Steam and PC storefronts accessible through Windows or SteamOS, and old-console emulation that Android handhelds handle better than either. That fragmentation is exactly why this particular trio makes sense to compare together — each one picks a different library to optimize for, rather than all three chasing the same buyer. Rising Trends’ October 2026 gaming data put the AYN Thor at roughly 301,000 searches as a pure breakout term, a bigger jump than any single Windows handheld logged that month, which signals real buyer confusion about where an Android dual-screen device even fits next to a Steam Deck or an Xbox-branded handheld.

It’s also worth clearing up a naming mix-up early: ASUS officially sells this device as the ROG Xbox Ally X20, part of the co-branded Xbox partnership line rather than a standalone “ROG Ally.” Some retail listings and aggregators still shorten it to “ROG Ally X20,” which is accurate shorthand but not the full product name you’ll see on ASUS’s own store.

ROG Ally X20, Legion Go 2, and AYN Thor at a Glance

The ASUS ROG Xbox Ally X20 is the “Edition 20” anniversary refresh of the ROG Xbox Ally X, revealed with pricing at Gamescom 2026 after ASUS dodged questions about cost at Computex. Pre-orders opened at $1,299.99 for the standalone unit, with a release date of October 15, 2026, according to Tom’s Guide’s hands-on report. The headline upgrades are a 7.4-inch ROG Nebula HDR OLED panel at 120Hz with 1,400-nit peak brightness, plus magnetic TMR joysticks designed to eliminate the drift that has plagued earlier Ally models.

The Lenovo Legion Go 2 is more complicated. The version that has actually been reviewed — by Stuff, which gave it 4 out of 5 stars — ships with Windows 11 and starts at $1,099, rising to $1,349 for the configuration tested. Lenovo has also announced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” hardware list still did not include it, and no major outlet had independently reviewed that SteamOS build, per reporting from Frames Games. That distinction matters a lot for anyone deciding between these three devices.

The AYN Thor is the outlier: a clamshell Android handheld with two AMOLED touchscreens, styled after the Nintendo 3DS XL. It became October 2026’s single biggest breakout handheld search term, pulling in roughly 301,000 searches according to Rising Trends’ gaming trend data. It isn’t trying to run Steam or Xbox Game Pass. It’s built for emulation, and its dual-screen layout is the reason people are searching for it.

Full Spec Comparison Table

Here’s how the core hardware stacks up, pulling exact figures from manufacturer listings and verified reviews rather than rounded marketing numbers.

SpecROG Xbox Ally X20Legion Go 2 (Windows, reviewed)AYN Thor (Max config)
Price (as tested)$1,299.99$1,349 (base $1,099)~$479 (Max 512GB)
Release dateOctober 15, 2026Reviewed January 2026Rolling 2026 batches
Operating systemWindows 11 + Xbox full screen experienceWindows 11 (SteamOS edition unverified)Android 13
CPU/APUAMD Ryzen AI Z2 ExtremeAMD Ryzen Z2 ExtremeQualcomm Snapdragon 8 Gen 2
RAM24GB LPDDR5X32GB16GB
Storage1TB PCIe 4.0 SSD1TB SSD + microSD512GB (expandable via microSD)
Display7.4-inch OLED, 120Hz, 1,400 nits8.8-inch OLED, 1920×1200, 144Hz6-inch 1080p 120Hz AMOLED (upper) + 3.92-inch 60Hz AMOLED (lower)
Battery capacity80Wh74Wh6,000mAh
Weight756g (approx.)920g380g
JoysticksMagnetic TMR (drift-resistant)Detachable, double as mouseHall-effect analog sticks
GPUAMD Radeon (RDNA 3.5, integrated)AMD Radeon (integrated)Adreno (integrated)
ConnectivityUSB4, Wi-Fi 6E2x USB-C, 3.5mm jackUSB-C with DisplayPort 4K60 alt mode

Two things jump out immediately. First, the Legion Go 2 is the heaviest device here by nearly 165 grams over the Ally X20, a gap Stuff’s reviewer Tom Morgan-Freelander described as making it “as big and heavy as gaming handhelds get.” Second, the AYN Thor isn’t playing the same game as the other two at all — its 380g weight and dual-screen layout put it closer to a souped-up 3DS than a Steam Deck rival.

2026 Pricing Breakdown: Every Configuration That Matters

Handheld pricing has gotten messy in 2026, with multiple manufacturers raising prices mid-year. Here’s the full configuration spread across all three families, plus the reference points buyers keep comparing them to.

DeviceConfigurationPrice
ROG Xbox Ally (base)Ryzen Z2 A, 16GB, 60Wh$599.99
ROG Xbox Ally XRyzen AI Z2 Extreme, 24GB, 80Wh$999.99
ROG Xbox Ally X20Same chip, 7.4″ OLED, magnetic sticks$1,299.99
ROG Xbox Ally X20 Anniversary Bundle+ Xreal R1 Edition 20 AR glasses + dBrand case$2,499.99
Legion Go 2 (Windows, base)Entry Ryzen Z2 config$1,099
Legion Go 2 (Windows, as-tested)Ryzen Z2 Extreme, 32GB, 1TB$1,349
Legion Go 2 (SteamOS edition, announced)Lenovo-stated spec, unverified by reviewersFrom $1,199
Legion Go S (officially “Powered by SteamOS”)Ryzen Z1 Extreme, 32GB, 1TB, Lenovo’s own store$1,099.99
Legion Go S (SteamOS, third-party retail)Lower-tier configsFrom ~$594
AYN Thor Max (512GB)Snapdragon 8 Gen 2, 16GB~$479 (post price hike)
AYN Thor Max (1TB)Snapdragon 8 Gen 2, 16GB~$579 (post price hike)
Steam Deck OLED (refurbished, Valve store)512GB$629
Steam Deck OLED (refurbished, Valve store)1TB$759
MSI Claw 8 EX AI+ (for reference)Intel Arc G3 ExtremeFrom $1,499

Note the AYN Thor pricing comes with a caveat: Android Authority reported on April 17, 2026 that AYN introduced the 16GB/512GB Max configuration at $469 and the 16GB/1TB model at $549, then on June 29, 2026 reported a further price increase effective July 3, 2026, raising the Max 512GB by $10 and the Max 1TB by $30. The figures above reflect that post-increase pricing. AYN has also swapped some batches from UFS 4.0 to UFS 3.1 storage to manage supply costs, so buyers should confirm the exact storage spec on any listing before ordering.

For anyone shopping on a tighter budget, a refurbished Steam Deck OLED remains the cheapest route into a full Steam library, and it’s worth reading how that device’s own pricing shifted earlier in 2026 before assuming the Ally X20 or Legion Go 2 is the better value play.

Benchmark Results: Cyberpunk 2077, Forza Horizon 6, and More

Specs on paper only tell half the story. Here’s what independent testing actually measured, pulled from three separate outlets running three different handhelds.

DeviceGame / TestResultSource
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset, native 1920×120032.4 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset + FSR/frame gen71.5 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, RT low preset, native18.8 FPSStuff
Legion Go 2 (Windows)Shadow of the Tomb Raider, Ultra, RT on20 FPSStuff
Legion Go 2 (Windows)Gears Tactics, Ultra, native32.4 FPSStuff
Legion Go 2 (Windows)3DMark Steel Nomad Light3,232 points (23.94 FPS)Stuff
ROG Xbox Ally X20Forza Horizon 6, 1080p, medium settings60 FPSTom’s Guide
Legion Go S (SteamOS vs Windows, same chip)General game testing, identical Ryzen Z2 Go hardwareSteamOS 30-45% faster than WindowsNotebookcheck (via Frames Games)
Steam Deck OLEDInput latency, pre/post SteamOS 3.8 (June 18, 2026)Dropped from 5-8ms to 100-500 microsecondsFrames Games

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Three gaming handhelds launched within weeks of each other in 2026, and each one bets on a completely different operating system to win your money. The ASUS ROG Xbox Ally X20 doubles down on Windows dressed up as an Xbox. The Lenovo Legion Go 2 is caught mid-transition from Windows 11 to a SteamOS edition that Valve itself hasn’t officially certified yet. And the AYN Thor ditches PC gaming altogether for a dual-screen Android design built around emulation. Three different bets, three different price tags, and three very different answers to “what should I actually buy.”

This comparison pulls together verified specs, pricing, and benchmark numbers from hands-on testing at Tom’s Guide, Stuff, Notebookcheck, and Galaxus to work out which of these 2026 handhelds earns its price tag. It is not a rehash of last year’s Steam Deck and ROG Ally X matchup — this is about the newest generation of hardware, including a handheld (the AYN Thor) that doesn’t run Windows or SteamOS at all.

The handheld gaming market has fragmented into at least three separate libraries that barely overlap: Nintendo exclusives locked to Switch hardware, Steam and PC storefronts accessible through Windows or SteamOS, and old-console emulation that Android handhelds handle better than either. That fragmentation is exactly why this particular trio makes sense to compare together — each one picks a different library to optimize for, rather than all three chasing the same buyer. Rising Trends’ October 2026 gaming data put the AYN Thor at roughly 301,000 searches as a pure breakout term, a bigger jump than any single Windows handheld logged that month, which signals real buyer confusion about where an Android dual-screen device even fits next to a Steam Deck or an Xbox-branded handheld.

It’s also worth clearing up a naming mix-up early: ASUS officially sells this device as the ROG Xbox Ally X20, part of the co-branded Xbox partnership line rather than a standalone “ROG Ally.” Some retail listings and aggregators still shorten it to “ROG Ally X20,” which is accurate shorthand but not the full product name you’ll see on ASUS’s own store.

ROG Ally X20, Legion Go 2, and AYN Thor at a Glance

The ASUS ROG Xbox Ally X20 is the “Edition 20” anniversary refresh of the ROG Xbox Ally X, revealed with pricing at Gamescom 2026 after ASUS dodged questions about cost at Computex. Pre-orders opened at $1,299.99 for the standalone unit, with a release date of October 15, 2026, according to Tom’s Guide’s hands-on report. The headline upgrades are a 7.4-inch ROG Nebula HDR OLED panel at 120Hz with 1,400-nit peak brightness, plus magnetic TMR joysticks designed to eliminate the drift that has plagued earlier Ally models.

The Lenovo Legion Go 2 is more complicated. The version that has actually been reviewed — by Stuff, which gave it 4 out of 5 stars — ships with Windows 11 and starts at $1,099, rising to $1,349 for the configuration tested. Lenovo has also announced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” hardware list still did not include it, and no major outlet had independently reviewed that SteamOS build, per reporting from Frames Games. That distinction matters a lot for anyone deciding between these three devices.

The AYN Thor is the outlier: a clamshell Android handheld with two AMOLED touchscreens, styled after the Nintendo 3DS XL. It became October 2026’s single biggest breakout handheld search term, pulling in roughly 301,000 searches according to Rising Trends’ gaming trend data. It isn’t trying to run Steam or Xbox Game Pass. It’s built for emulation, and its dual-screen layout is the reason people are searching for it.

Full Spec Comparison Table

Here’s how the core hardware stacks up, pulling exact figures from manufacturer listings and verified reviews rather than rounded marketing numbers.

SpecROG Xbox Ally X20Legion Go 2 (Windows, reviewed)AYN Thor (Max config)
Price (as tested)$1,299.99$1,349 (base $1,099)~$479 (Max 512GB)
Release dateOctober 15, 2026Reviewed January 2026Rolling 2026 batches
Operating systemWindows 11 + Xbox full screen experienceWindows 11 (SteamOS edition unverified)Android 13
CPU/APUAMD Ryzen AI Z2 ExtremeAMD Ryzen Z2 ExtremeQualcomm Snapdragon 8 Gen 2
RAM24GB LPDDR5X32GB16GB
Storage1TB PCIe 4.0 SSD1TB SSD + microSD512GB (expandable via microSD)
Display7.4-inch OLED, 120Hz, 1,400 nits8.8-inch OLED, 1920×1200, 144Hz6-inch 1080p 120Hz AMOLED (upper) + 3.92-inch 60Hz AMOLED (lower)
Battery capacity80Wh74Wh6,000mAh
Weight756g (approx.)920g380g
JoysticksMagnetic TMR (drift-resistant)Detachable, double as mouseHall-effect analog sticks
GPUAMD Radeon (RDNA 3.5, integrated)AMD Radeon (integrated)Adreno (integrated)
ConnectivityUSB4, Wi-Fi 6E2x USB-C, 3.5mm jackUSB-C with DisplayPort 4K60 alt mode

Two things jump out immediately. First, the Legion Go 2 is the heaviest device here by nearly 165 grams over the Ally X20, a gap Stuff’s reviewer Tom Morgan-Freelander described as making it “as big and heavy as gaming handhelds get.” Second, the AYN Thor isn’t playing the same game as the other two at all — its 380g weight and dual-screen layout put it closer to a souped-up 3DS than a Steam Deck rival.

2026 Pricing Breakdown: Every Configuration That Matters

Handheld pricing has gotten messy in 2026, with multiple manufacturers raising prices mid-year. Here’s the full configuration spread across all three families, plus the reference points buyers keep comparing them to.

DeviceConfigurationPrice
ROG Xbox Ally (base)Ryzen Z2 A, 16GB, 60Wh$599.99
ROG Xbox Ally XRyzen AI Z2 Extreme, 24GB, 80Wh$999.99
ROG Xbox Ally X20Same chip, 7.4″ OLED, magnetic sticks$1,299.99
ROG Xbox Ally X20 Anniversary Bundle+ Xreal R1 Edition 20 AR glasses + dBrand case$2,499.99
Legion Go 2 (Windows, base)Entry Ryzen Z2 config$1,099
Legion Go 2 (Windows, as-tested)Ryzen Z2 Extreme, 32GB, 1TB$1,349
Legion Go 2 (SteamOS edition, announced)Lenovo-stated spec, unverified by reviewersFrom $1,199
Legion Go S (officially “Powered by SteamOS”)Ryzen Z1 Extreme, 32GB, 1TB, Lenovo’s own store$1,099.99
Legion Go S (SteamOS, third-party retail)Lower-tier configsFrom ~$594
AYN Thor Max (512GB)Snapdragon 8 Gen 2, 16GB~$479 (post price hike)
AYN Thor Max (1TB)Snapdragon 8 Gen 2, 16GB~$579 (post price hike)
Steam Deck OLED (refurbished, Valve store)512GB$629
Steam Deck OLED (refurbished, Valve store)1TB$759
MSI Claw 8 EX AI+ (for reference)Intel Arc G3 ExtremeFrom $1,499

Note the AYN Thor pricing comes with a caveat: Android Authority reported on April 17, 2026 that AYN introduced the 16GB/512GB Max configuration at $469 and the 16GB/1TB model at $549, then on June 29, 2026 reported a further price increase effective July 3, 2026, raising the Max 512GB by $10 and the Max 1TB by $30. The figures above reflect that post-increase pricing. AYN has also swapped some batches from UFS 4.0 to UFS 3.1 storage to manage supply costs, so buyers should confirm the exact storage spec on any listing before ordering.

For anyone shopping on a tighter budget, a refurbished Steam Deck OLED remains the cheapest route into a full Steam library, and it’s worth reading how that device’s own pricing shifted earlier in 2026 before assuming the Ally X20 or Legion Go 2 is the better value play.

Benchmark Results: Cyberpunk 2077, Forza Horizon 6, and More

Specs on paper only tell half the story. Here’s what independent testing actually measured, pulled from three separate outlets running three different handhelds.

DeviceGame / TestResultSource
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset, native 1920×120032.4 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, Steam Deck preset + FSR/frame gen71.5 FPSStuff
Legion Go 2 (Windows)Cyberpunk 2077, RT low preset, native18.8 FPSStuff
Legion Go 2 (Windows)Shadow of the Tomb Raider, Ultra, RT on20 FPSStuff
Legion Go 2 (Windows)Gears Tactics, Ultra, native32.4 FPSStuff
Legion Go 2 (Windows)3DMark Steel Nomad Light3,232 points (23.94 FPS)Stuff
ROG Xbox Ally X20Forza Horizon 6, 1080p, medium settings60 FPSTom’s Guide
Legion Go S (SteamOS vs Windows, same chip)General game testing, identical Ryzen Z2 Go hardwareSteamOS 30-45% faster than WindowsNotebookcheck (via Frames Games)
Steam Deck OLEDInput latency, pre/post SteamOS 3.8 (June 18, 2026)Dropped from 5-8ms to 100-500 microsecondsFrames Games

The Notebookcheck finding deserves its own callout: when Lenovo’s Legion Go S runs identical Ryzen Z2 Go silicon under SteamOS instead of Windows 11, it measured 30 to 45 percent faster in games. That single data point explains why so many enthusiasts are reluctant to buy the Legion Go 2 while its SteamOS build remains unverified — the operating system, not the chip, is doing a huge amount of the performance work on these machines.

AYN hasn’t published comparable frame-rate benchmarks for the Thor in PC-style titles, because that isn’t really its job. Galaxus’s review (published February 20, 2026) instead tested emulation and lightweight PC-adjacent workloads, reporting that the Snapdragon 8 Gen 2 Thor handled The Legend of Zelda: Breath of the Wild at 30 FPS in Wii U emulation, along with playable results in Hades 2 and Megabonk. Those are single-reviewer results on specific configurations, not a guarantee every game will run the same way on every unit.

Display and Build Quality Compared

The ROG Xbox Ally X20’s 7.4-inch ROG Nebula HDR OLED panel hits 1,400 nits peak brightness, and Tom’s Guide’s Jason England noted that picture quality “survived even under the harsh spotlights” of a Gamescom demo floor. ASUS also redesigned the controls for this revision: magnetic TMR joysticks that track via magnets rather than physical contacts (eliminating the mechanical wear that causes drift), reshaped bumpers, more domed ABXY buttons, and a transforming D-pad that rotates 90 degrees to switch between 8-way and 4-way input depending on genre.

Lenovo went bigger rather than denser with the Legion Go 2: an 8.8-inch OLED panel at 1920×1200 and 144Hz, which Stuff called “the biggest screen you’ll find on a Windows-powered portable from a major manufacturer.” The tradeoff is size and weight — at 920g with controllers attached, it’s heavier than any Windows handheld Stuff’s reviewer had tested, and dimensions of 296x137x42.2mm make it noticeably larger in a bag than the Ally X20 or a Steam Deck OLED.

The AYN Thor plays an entirely different game with its dual-AMOLED clamshell: a 6-inch 1920×1080 120Hz upper screen for active gameplay and a 3.92-inch 1240×1080 60Hz lower touchscreen for maps, menus, or a second app entirely. It is not a stereoscopic 3D display like the original Nintendo 3DS, and the lower panel uses capacitive rather than resistive touch, so DS and 3DS stylus games won’t behave identically to the originals. Still, for anyone who grew up on dual-screen Nintendo handhelds, it’s the only current device replicating that physical layout rather than faking it with a software overlay.

Battery Life: Real-World Runtime Numbers

Battery capacity on a spec sheet rarely matches real gaming time, so here’s what reviewers actually clocked.

  • Legion Go 2 (Windows): Stuff measured roughly two to four hours in 3D action/adventure games on the Balanced preset at 60% brightness, dropping to as low as two hours in a demanding title like Cyberpunk 2077. Low Power mode on 2D/indie games stretched to around six hours with flight mode enabled.
  • ROG Xbox Ally X (predecessor to the X20, same 80Wh cell): Engadget measured approximately 3.5 hours in Clair Obscur at 1080p on medium settings, while Tom’s Hardware saw roughly half the battery drain in 90 minutes at a 17-watt power limit, per reporting compiled by Frames Games.
  • AYN Thor: Galaxus reported about 10 hours for light retro workloads like NES or Game Boy emulation, dropping to roughly 6 hours for 3DS titles or PC-adjacent games. Switching the upper display from 120Hz to 60Hz measurably extended runtime in that same test.
  • Steam Deck OLED (for reference): Its 50Wh battery is smaller than all three handhelds above, but SteamOS’s console-style power management and the chip’s lower overall ceiling have historically made it competitive on a per-watt-hour basis.

The pattern holds across every device in this comparison: heavier, more powerful APUs chew through bigger batteries faster, and the operating system layered on top changes the math as much as the chip does.

Operating System Showdown: Xbox Full Screen Experience vs SteamOS vs Android

This is where these three handhelds actually diverge, and it’s a bigger deal than any spec sheet number.

Xbox full screen experience on the Ally X20

The ROG Xbox Ally line is built by ASUS, not Microsoft — Xbox president Sarah Bond has said partnering with ASUS let both companies move faster than either could alone. What Microsoft actually contributed is the Xbox full screen experience, a console-style shell that debuted on the original Ally in October 2025, reached general Windows 11 PCs that November, and was renamed simply “Xbox mode” as it expanded to laptops and desktops starting in April 2026 — part of a broader push, discussed in our look at Microsoft’s console hardware strategy, to make Xbox a software layer rather than a single box. It unifies Game Pass, Steam, the Epic Games Store, and other launchers into one console-like list and trims background processes to free up resources. Critically, because it’s still Windows 11 underneath, the Ally X20 can run anti-cheat-protected online shooters that lock out SteamOS and Linux-based systems entirely.

SteamOS, officially and unofficially

Valve’s own hardware support page draws a hard line between devices officially “Powered by SteamOS” (Steam Deck, Steam Machine, and the Lenovo Legion Go S) and everything else, which only gets beta support — a list that includes the original Legion Go, the ROG Ally, the ROG Ally X, and broadly any AMD-powered handheld or PC. Valve explicitly does not support Nvidia graphics for self-installed SteamOS images. The Legion Go 2’s SteamOS edition sits in an odd spot: Lenovo and some press call it “Powered by SteamOS,” but as of September 18, 2026, Valve’s own official list had not added it, and no major outlet had reviewed that build independently.

Android on the AYN Thor

The Thor runs Android 13 with AYN’s own control center layered on top for performance profiles, fan speed, and lighting. That gets you the Play Store, sideloaded emulators, and streaming apps, but it also means setup is more hands-on than booting a console. Galaxus’s reviewer described spending several hours tuning emulator settings and installing front-ends like Cocoon Launcher to make the dual-screen layout feel purpose-built rather than improvised.

None of these operating systems is objectively “best.” They’re optimized for different libraries, and that’s the single biggest factor buyers get wrong when they shop by spec sheet alone. A gamer who spends most of their time in Game Pass or a kernel-anti-cheat shooter will be miserable on SteamOS or Android no matter how fast the chip is. Someone chasing the smoothest possible frame rate per dollar on a Steam library should default to SteamOS over Windows whenever it’s officially supported, given the Notebookcheck findings above. And someone whose real goal is replaying a childhood DS or 3DS library has no reason to touch either PC operating system at all.

How the Steam Deck OLED, Legion Go S, and MSI Claw Fit Into the Picture

None of these three headline handhelds exist in a vacuum, and three adjacent devices keep coming up in every review of them. The Legion Go S is the one handheld besides the Steam Deck and Steam Machine that Valve’s own support page officially certifies as “Powered by SteamOS.” Lenovo’s own store lists only the top configuration — Ryzen Z1 Extreme, 32GB RAM, 1TB storage — at $1,099.99, though third-party retailers carry lower-tier SteamOS versions from around $594. Its 8-inch 1920×1200 120Hz display and 55.5Wh battery make it a notably cheaper, lighter alternative to the Legion Go 2 for anyone who specifically wants certified SteamOS today rather than waiting on the Legion Go 2’s unverified build.

The Steam Deck OLED remains the baseline every other Windows or SteamOS handheld gets measured against. Its 7.4-inch HDR OLED panel hits up to 1,000 nits across a 90Hz refresh rate, paired with a 50Wh battery and 640g weight — lighter than both the Ally X20 and the Legion Go 2. Valve’s SteamOS 3.8 update, which shipped June 18, 2026, cut input latency from a range of 5-8 milliseconds down to 100-500 microseconds, a change Frames Games’ testing flagged as one of the most noticeable software-only improvements to the Deck since its OLED refresh. Ongoing coverage of handheld gaming hardware has repeatedly pointed to the Deck’s 2022-era Zen 2 chip as its biggest remaining weakness against 2026-generation Ryzen Z2 silicon, even with the software advantage.

The MSI Claw 8 EX AI+ sits at the opposite extreme: Intel’s Arc G3 Extreme graphics deliver roughly 50 to 75 percent more performance than the base ROG Xbox Ally in some workloads, but it starts at $1,499 and weighs nearly 800 grams, according to pricing and testing reported by Frames Games. It’s the clearest evidence that Intel’s XeSS 3 multi-frame generation currently has an edge over AMD’s FSR implementation on the Ryzen Z2 Extreme chip powering both the Ally X20 and Legion Go 2 — Tom’s Guide’s Jason England noted this gap directly in his Ally X20 hands-on, writing that “Intel well and truly has AMD’s number in this area” while AMD users wait for an upgraded FSR.

SteamOS Compatibility in 2026: Official vs Beta vs DIY

If SteamOS is part of your buying decision, the distinction between “officially supported” and “runs it, unofficially” matters more than almost any other spec in this comparison. Valve’s support page is explicit: the only devices Valve officially calls “Powered by SteamOS” are the Steam Deck, the Steam Machine, and the Lenovo Legion Go S. Everything else — the original Legion Go, the ROG Ally, the ROG Ally X, and by extension the Ally X20 — falls under beta support for AMD-powered hardware, installed via Valve’s own recovery image. Nvidia-based handhelds aren’t supported at all for self-installation.

The Legion Go 2’s SteamOS edition is the clearest illustration of why that distinction matters. Lenovo has marketed it and priced it from $1,199, with a reported on-sale date in June 2026, but Valve’s own certification list didn’t include it as of mid-September 2026, and independent reviewers hadn’t been able to test it yet. Buyers who specifically want the 30-to-45-percent performance uplift that SteamOS delivered on the Legion Go S (per Notebookcheck’s testing) should weigh that uncertainty before ordering the Legion Go 2 and assuming the same gains carry over. Coverage comparing the Legion Go 2 against the Steam Deck has tracked this gap closely as Lenovo continues rolling out SteamOS support.

AYN Thor’s Dual-Screen Advantage for Emulation

Nintendo DS and 3DS emulation is the single clearest reason to choose the Thor over a conventional single-screen Android handheld. Because the hardware physically mirrors the original console layout — one screen for gameplay, one for the touch-driven secondary display — emulators don’t need to simulate or stack the two views onto one panel the way they do on devices like the Retroid Pocket 6 or AYN’s own Odin series.

AYN sells the Thor across five tiers, and the chipset difference matters more than it might seem:

ModelProcessorMemoryStorage
LiteSnapdragon 8658GB128GB
BaseSnapdragon 8 Gen 28GB128GB
ProSnapdragon 8 Gen 212GB256GB
Max 512GBSnapdragon 8 Gen 216GB512GB
Max 1TBSnapdragon 8 Gen 216GB1TB

Only the Base, Pro, and Max tiers get the Snapdragon 8 Gen 2; the entry-level Lite keeps the dual-screen format but drops to a Snapdragon 865, a meaningfully weaker chip for demanding emulation. The Thor weighs 380 grams according to Galaxus’s testing — about 50 grams heavier than a Nintendo 3DS XL used for comparison — and the reviewer noted the hinge didn’t wobble the way their comparison DS unit did, though the fan became audible under heavier emulation loads. Speakers were flagged as one of its weaker points, described as “acceptable but somewhat tinny.”

Cloud Gaming as the Fourth Option

Before settling on hardware, it’s worth noting that cloud gaming is changing shape under all three of these handhelds in late 2026, and it could shift the calculation for some buyers entirely. Microsoft announced changes to Xbox Cloud Gaming starting in November 2026: Game Pass Ultimate subscribers move from unlimited cloud play to a monthly allotment, while a new option lets players buy cloud gaming hours directly from the Xbox Store without subscribing to Game Pass at all. That second option is particularly relevant for Legion Go 2 and AYN Thor owners, since cloud streaming sidesteps the anti-cheat and native-compatibility limits that block local SteamOS or Android installs from running Windows-exclusive shooters.

For the Ally X20 specifically, cloud gaming is a nice-to-have rather than a necessity, since it already runs the full Windows 11 stack locally. For Legion Go 2 owners who eventually switch to its SteamOS edition, and for AYN Thor owners on Android, cloud gaming becomes the practical workaround for anything the local operating system can’t run natively — at the cost of needing a stable Wi-Fi connection, which none of these handhelds can guarantee on a train or a flight.

5 Real-World Use Cases: Which Handheld Fits Your Life

Specs matter less than what you actually plan to play. Here’s how these three handhelds (plus their closest siblings) sort out across common buyer scenarios. For a broader look at how these shifts are reshaping the wider industry, our coverage of mobile versus desktop gaming trends digs into why handheld-first hardware keeps gaining ground.

  1. You play online shooters with Game Pass: SteamOS and Android are non-starters here because kernel-level anti-cheat won’t run on either. The ROG Xbox Ally X20 is the only device in this comparison built for that use case, and if $1,299 is too steep, the $999.99 Ally X delivers nearly identical performance with a smaller OLED-free display.
  2. You already own a deep Steam library and want zero setup: A refurbished Steam Deck OLED at $629 (512GB) from Valve’s own store remains the simplest, cheapest route — compatibility badges, per-game settings profiles, and console-style sleep mode all work exactly as advertised.
  3. You want the biggest, sharpest screen for single-player RPGs: The Legion Go 2’s 8.8-inch 144Hz OLED is the standout here, provided you can live with 920 grams of handheld and a still-unverified SteamOS edition.
  4. You grew up on the Nintendo DS or 3DS and want that exact experience back: The AYN Thor’s dual-AMOLED clamshell is the only device shaped for this, assuming you’re willing to configure emulators yourself rather than unbox a ready-made console.
  5. You travel constantly and hate carrying dead weight: None of these three are travel-friendly in the way a Switch Lite or Retroid Pocket 6 is — all three sit between 380g and 920g with runtimes well under the 8-9 hours a lighter Android handheld can manage on simpler workloads.
  6. You’re a family buying one shared device for multiple kids: None of these three handhelds is really built for that use case — the Legion Go 2’s detachable controllers help with couch co-op, but at $1,099 and up, families chasing shared multiplayer and parental controls are typically better served by dedicated console hardware than any device in this comparison.

It’s worth repeating that none of these three devices is a universal answer, and that’s by design. The broader push toward handheld-specific hardware and software (including the wider shifts in how online gaming is evolving) means manufacturers are increasingly comfortable shipping devices that are excellent at one job rather than mediocre at five.

Migration Guide: Moving Your Library Between Platforms

Switching ecosystems is the part most buyers underestimate. Here’s what actually changes depending on which direction you’re moving.

Moving from Windows to SteamOS (Ally X20 or Legion Go 2 owners)

Valve publishes an official SteamOS recovery image for AMD-powered handhelds and PCs. The broad strokes, confirmed by Valve’s own support documentation:

1. Download Valve's SteamOS recovery image for your device's chipset
2. Flash it to a USB drive (minimum 8GB) using a imaging tool
3. Boot the handheld from the USB drive via its boot-select menu
4. Run the guided SteamOS installer, choosing "destructive install" to replace Windows
5. Sign back into Steam -- your library, cloud saves, and screenshots restore automatically
6. Reinstall Proton-dependent games; some anti-cheat titles will not launch under SteamOS

Remember that Nvidia GPUs aren’t supported for self-installed SteamOS, which rules this path out for anything other than AMD-based handhelds. Also remember that Valve’s own compatibility list treats the Ally X20 and Legion Go 2 (Windows edition) as beta-supported, not officially certified, so expect some rough edges Valve’s forums and GitHub issue tracker will need to help resolve.

Moving from a PC or console library to the AYN Thor

There’s no direct library transfer here because Android isn’t running Steam or Xbox natively. Instead, the practical path is: install the Play Store apps and streaming clients you want (GeForce Now, Xbox Cloud Gaming’s new no-subscription hourly option announced for November 2026, or Moonlight for local streaming from your own PC), then separately set up emulators and front-ends like RetroArch or Cocoon Launcher for anything you want to emulate locally. Keep in mind this requires you to legally own the original game files you intend to emulate.

Staying on Windows but switching handhelds (Ally X20 or Legion Go 2)

This is the easiest migration of the three. Both devices run Windows 11 with Xbox full screen experience layered on top, so Game Pass, Steam, Epic, and Battle.net libraries all carry over the same way they would on any new Windows PC — sign back into each launcher and let the install queue run overnight. The main adjustment is re-tuning per-game power limits and FSR/upscaling settings, since both Tom’s Guide and Stuff found that the “best” settings for a given title varied noticeably between the two devices’ thermal designs, even when running the same Ryzen Z2 Extreme chip.

Pros and Cons of Each Handheld

ROG Xbox Ally X20

  • Pros: 1,400-nit OLED display, drift-resistant magnetic TMR sticks, full Windows compatibility including anti-cheat shooters, Xbox full screen experience unifies multiple game stores
  • Cons: $1,299.99 is $300 more than its predecessor for the same core chip, AMD’s FSR lags behind Intel’s XeSS 3 on rival handhelds, the $2,499.99 AR glasses bundle is a tough sell for most buyers

Legion Go 2

  • Pros: Largest, sharpest screen in this comparison at 8.8 inches and 144Hz, detachable controllers double as a mouse, Ryzen Z2 Extreme sets the current performance bar among Windows handhelds
  • Cons: Heaviest device here at 920g, as expensive as some gaming laptops at $1,349 as-tested, the SteamOS edition remains unverified by independent reviewers as of this writing, and it misses some of Windows 11’s newer Xbox full screen tweaks

AYN Thor

  • Pros: Only current handheld with a true dual-screen clamshell layout, by far the lightest device in this comparison at 380g, strong battery life on light workloads (~10 hours), far cheaper than either Windows handheld
  • Cons: Android setup requires manual emulator configuration, speakers are a known weak point, pricing and storage specs (UFS 4.0 vs 3.1) have shifted mid-batch during 2026, no native support for Steam or Xbox libraries

The Verdict: Which Gaming Handheld Should You Buy in 2026

There isn’t a single winner here, and the data backs that up. If online multiplayer with anti-cheat is non-negotiable, the ROG Xbox Ally X20 is the only device of the three that reliably runs those games, and its $1,299.99 price is easier to justify given the jump to a 1,400-nit OLED panel and drift-proof sticks. If you want the single best screen for single-player gaming and don’t mind carrying 920 grams, the Legion Go 2’s 8.8-inch 144Hz OLED outclasses everything else here — just buy the reviewed Windows edition rather than betting on the still-unverified SteamOS version until outlets like Notebookcheck or Stuff get hands-on time with it.

Put in pure dollars-per-feature terms: the Ally X20 charges a $300 premium over the Ally X almost entirely for its display and control upgrades, since the chip, RAM, and storage are unchanged. The Legion Go 2 charges a $250 premium over its own base model for the jump from a smaller config to 32GB RAM and the full Ryzen Z2 Extreme. And the AYN Thor undercuts both of them by roughly $800-$1,000 simply by not trying to be a PC gaming device at all. None of those price gaps are irrational once you know what you’re actually paying for, which is the core argument for picking a device around your actual library rather than the specs you find most impressive on paper.

The AYN Thor isn’t competing with either of them directly. At roughly a third of the Ally X20’s price, it’s the clear pick for anyone whose actual use case is DS and 3DS emulation, and its dual-screen format has no real substitute on the market right now. For Steam libraries specifically, don’t overlook the refurbished Steam Deck OLED, which at $629 remains the simplest and cheapest way into Valve’s ecosystem without touching Windows at all.

The broader trend worth watching, covered in more detail in our 2026 mobile and handheld gaming roundup, is that the operating system choice is now a bigger performance lever than the silicon underneath it — Notebookcheck’s 30-to-45-percent SteamOS-versus-Windows gap on identical Legion Go S hardware is the clearest proof of that so far this year.

Frequently Asked Questions

Is the ROG Xbox Ally X20 the same as the ROG Xbox Ally X?
No. They share the same AMD Ryzen AI Z2 Extreme chip, 24GB of RAM, and 1TB storage, but the X20 adds a 7.4-inch 1,400-nit OLED display at 120Hz with VRR, magnetic TMR joysticks, and a transforming D-pad, at a $300 premium over the Ally X’s $999.99 price.

Does the Legion Go 2 officially run SteamOS yet?
Lenovo has announced and priced a SteamOS edition starting at $1,199, but as of September 18, 2026, Valve’s own “Powered by SteamOS” certification list did not include it, and no major outlet had independently reviewed that build. The reviewed Legion Go 2 runs Windows 11.

Which handheld has the best battery life in this comparison?
The AYN Thor lasts longest on light workloads, around 10 hours for NES or Game Boy emulation per Galaxus’s testing, though that drops to about 6 hours for 3DS titles or PC-adjacent games. Among the Windows handhelds, the Legion Go 2 typically manages 2 to 4 hours in demanding 3D games.

Can the AYN Thor play Steam games?
Not natively. It runs Android 13, so PC gaming is limited to cloud streaming services like GeForce Now or Moonlight, or Android-native titles from the Play Store, rather than installing and running Steam’s Windows library directly.

Is SteamOS actually faster than Windows on the same hardware?
Notebookcheck’s testing of the Lenovo Legion Go S, which ships in both Windows and SteamOS versions on identical Ryzen Z2 Go silicon, measured the SteamOS version running 30 to 45 percent faster in games.

Which of these three handhelds is best for Call of Duty or other anti-cheat shooters?
Only the ROG Xbox Ally X20, since it runs full Windows 11. SteamOS and Android both lack support for the kernel-level anti-cheat systems most competitive shooters require.

What’s included in the ROG Xbox Ally X20’s $2,499.99 Anniversary Bundle?
The standalone $1,299.99 handheld, a pair of Xreal R1 Edition 20 AR glasses, and a dBrand Killswitch case with a motherboard-patterned skin, according to Tom’s Guide’s hands-on coverage. The AR glasses lean on head-tracking for a feature ASUS calls FreeLook, which is part of a wider industry push toward headset and AR-driven gaming that extends well beyond this one bundle.

Is the AYN Thor worth it over a cheaper single-screen Android handheld?
Only if the dual-screen format itself is the draw. Reviewers consistently note that single-screen Android handhelds can match or beat the Thor on raw price-to-performance, but none of them replicate its clamshell DS/3DS-style layout.

What happens to Xbox Cloud Gaming in November 2026?
Microsoft is ending unlimited cloud play for Game Pass Ultimate subscribers in favor of a monthly hour allotment, while also introducing an option to buy cloud gaming hours directly without a Game Pass subscription at all, according to Xbox’s own announcement.

Is the Legion Go S a better buy than the Legion Go 2 right now?
If officially certified SteamOS is your priority today rather than later, yes — the Legion Go S is one of only three devices on Valve’s official “Powered by SteamOS” list, while the Legion Go 2’s SteamOS edition remains unverified by independent reviewers as of this writing.

Related Coverage

Owen Castellanos

Owen Castellanos

Hardware & Gaming Reporter

Owen Castellanos is the Hardware & Gaming Reporter at TrendinTech, where he tests graphics cards, processors, consoles and peripherals and follows the games industry, from the major publishers to independent studios. He previously wrote reviews and benchmarks for Tom's Hardware and contributed features to PC Gamer, covering everything from laptop testing to the economics of game development. Owen holds a Bachelor of Science in Electrical Engineering from the University of Texas at Austin and attends CES in Las Vegas, Computex in Taipei and the Game Developers Conference in San Francisco each year to meet chipmakers and developers. He writes for readers who want to know whether a product is worth the money, and he is not shy about saying when it is not.

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