Bottom line
Legion Go S Powered by SteamOS is the most interesting Steam Deck challenger here because it keeps SteamOS usability while adding an 8-inch 120Hz VRR screen and Z1 Extreme hardware. It ranks below Steam Deck OLED because battery capacity, review depth, and current-SKU confidence are not as reassuring.
Ranked seventh as the most interesting SteamOS challenger. It offers a larger 8-inch 120Hz/VRR screen and Z1 Extreme hardware while keeping SteamOS usability, but a smaller 55.5Wh battery, lighter review depth, and current-SKU caution leave Steam Deck OLED as the steadier Steam-first pick.
Choose it if you want SteamOS with a larger VRR display and can accept battery tradeoffs. Steam Deck OLED is still the steadier default for most Steam-first buyers.
Lenovo’s SteamOS configuration and reviewer comparisons support the larger-screen challenger framing, especially for buyers who want a less Windows-heavy handheld without dropping to a small display.
The Z1 Extreme configuration and 8-inch VRR display are documented hardware advantages, and reviewers note that they can make the Go S feel more performance-oriented in some SteamOS use cases.
Lenovo Legion Go S Powered by SteamOS (Z1 Extreme) is strongest where SteamOS gives it a cleaner handheld experience than typical Windows devices, The 8-inch 120Hz VRR display and Z1 Extreme configuration make it attractive for Steam-first players who want a larger, performance-oriented setup, Official Lenovo SteamOS support resources make it feel more credible than an unofficial software experiment. Those strengths make it feel less like a spec-sheet pick and more like a product with a clear reason to exist in its category.
The main caveats are The 55.5Wh battery is modest next to 80Wh Windows rivals, The available review depth is lighter than for the Steam Deck OLED or ROG Ally X, Non-Steam storefronts and edge-case PC compatibility remain better fits for Windows handhelds. We would treat those as real buying filters rather than footnotes, especially if you are comparing it against cheaper or more specialized alternatives.
It makes the most sense for Steam-first buyers wanting a larger 8-inch VRR screen, Players who dislike Windows setup friction, Tinker-light users with mostly Steam-compatible libraries, but it is less compelling for Non-Steam storefront-heavy players, Battery-first travelers.
