Lenovo is trying an experiment. In May, it will officially become the very first company outside of Valve to ship a handheld gaming PC with the Steam Deck’s wonderfully pick-up-and-play SteamOS instead of Microsoft Windows.

The Lenovo Legion Go S with Windows or SteamOS also joins a prototype for the Lenovo Go 2, now with controllers you can comfortably hold.

The Lenovo Legion Go S boasts a new ergonomic design and strong components. But the fact that it's the first third-party device to have SteamOS as an option could make it the greatest handheld in 2025.

The Lenovo Legion Go was already one of the best handheld gaming PCs since it came out in 2023, but at CES Lenovo has unveiled two more handhelds at CES 2025, a lightweight Legion Go S, and a prototype of the much-awaited Lenovo Legion Go 2.

Now, Lenovo is launching a new PC gaming handheld at CES 2025, and it finally does away with the worst part of the PC gaming handheld experience. The Lenovo Legion Go S will be the only other handheld besides the Steam Deck to have a SteamOS license, giving you a Steam Deck-like experience on much more modern hardware.

Lenovo Legion Go has a Windows 11 version and a SteamOS version. Here's how the latter compares to the Steam Deck.

The Legion Go S with SteamOS will launch in May for $499.99, bringing hardware specs that put it on par — and, in some cases, well above — the Asus ROG Ally and other powerful