Lenovo Legion Go S with Valve's SteamOS is official, expected to launch in May

Lenovo have lifted the lid on the world's first officially licensed handheld powered by SteamOS, the Lenovo Legion Go S, which should arrive in May. There's two versions of it: one shipping with SteamOS that's cheaper and one with Windows 11 and you will be able to pick between a few different configurations (eventually anyway).

Here it is:

With multiple configurations available you'll get the choice between processors too. Either the AMD Ryzen Z2 Go processor (they say it's exclusive to Lenovo) or the AMD Ryzen Z1 Extreme processor. The Z2 Go is part of what AMD announced at CES 2025.

The specifications given for the two editions are listed below:

Lenovo did not confirm yet what exact specifications the initial SteamOS model will ship with, at least not in their main public press material.

From the press release: “Lenovo’s vision for gaming has always been to deliver the most powerful and innovative technology, empowering gamers to play their way at their best. With groundbreaking devices like the Legion Go S, the world’s first officially licensed handheld powered by SteamOS™, and our redesigned Legion Pro laptops featuring stunning OLED displays, we’re redefining what gaming experiences can be,” said Jun Ouyang, Lenovo’s Senior Vice President and General Manager of the Consumer Segment, Intelligent Devices Group. “These innovations are designed with competitive gamers and gaming students in mind, providing the performance, adaptability, and versatility needed to excel both in the game and in academic fields like STEM. By combining cutting-edge hardware, gamer-focused AI-powered software, and new form factors, Lenovo Legion is empowering the next generation of gamers to push boundaries and achieve their goals.”

The Windows version of it will be available this month (January) with a starting price of $729.99, with additional configurations coming in May starting at $599.99. The SteamOS version is due in May with a starting price of $499.99.

Valve spoke to The Verge giving some other details like Lenovo being the only current SteamOS partner, and there's no other third-party SteamOS devices in the works right now. And a new SteamOS Beta is apparently coming that might work on other handhelds. Update: Valve officially announced a SteamOS Beta is coming!

dbrand have already jumped in to announce accessories for the Legion Go S as well like the Killswitch case.

Pictured - Legion Go S Killswitch, dbrand

What do you think? Will you be picking one up?

Showing compatible games is going to be an interesting hurdle though. No information has been given on how they plan to handle that, as the Deck Verified system will have plenty that wouldn't apply to this device, and in some cases this new SteamOS device may have issues the Steam Deck does not. I've reached out to Valve and Lenovo to see if they can share anything.

Lenovo had various other announcements like a prototype next-generation Lenovo Legion Go, the one with detachable controllers. They said the final production details are "still being refined" on that. Currently the Prototype "features up to the new AMD Ryzen™ Z2 Extreme processor with RDNA™ 3.5 graphics and up to 32GB of 7500Mhz LPDDR5X RAM, as well as a native landscape 8.8" 16:10 144Hz 500nit OLED PureSight touch display with Variable Refresh Rate (VRR) support".

The Prototype for the Lenovo Legion Go 2 also has some other refinements like rounded Lenovo Legion TrueStrike controllers with a circular D-pad. Along with "up to 2TB of SSD storage and a 74Whr battery".

Pictured: Prototype Image of the Lenovo Legion Go 2