Lenovo Legion Go S (SteamOS)

The Lenovo Legion Go S running SteamOS is arguably the most significant product in the handheld PC category since the original Steam Deck. It is the first third-party device to ship with official SteamOS support, and the performance and efficiency dividends of that software choice are real and measurable. Tom's Guide's benchmark data confirms SteamOS delivers 4–15 additional frames per second over Windows on equivalent hardware, alongside battery life improvements attributable to the elimination of Windows background processes and more aggressive GPU scheduling optimization. The Go S ships in multiple configurations spanning the Ryzen Z2 Go and Z1 Extreme silicon tiers, with 16–32GB of DDR5 memory depending on configuration, priced from approximately $599 to $830. The 8-inch 1920x1200 IPS display at 120Hz with VRR support is a standout for the value tier — the aspect ratio is particularly well-suited to older games and emulation content that benefits from the extra vertical resolution. Peak brightness of around 500 nits is competitive without being class-leading. The 55.5Wh battery is smaller than the premium field but benefits enormously from SteamOS's efficiency. In practice, gaming battery life competes with or exceeds Windows-based devices carrying larger cells. The device weighs approximately 735g, which is middle-of-the-pack for the 8-inch screen size. Ergonomics are solid but not exceptional — the Legion Go S inherits the Go line's comfortable grip without the original's polarizing detachable controller gimmick. The SteamOS interface is genuinely polished for couch gaming, and Valve's Proton compatibility layer handles the vast majority of Steam's catalog without user intervention. For players whose libraries live in Steam, this is the best value proposition in handheld gaming in 2026.