Summary

Lenovo's upcoming Legion Go S gaming handheld will be the first third-party device to ship with Valve's SteamOS, launching in May 2025 for $499. This marks a significant expansion of SteamOS beyond the Steam Deck.

The Lenovo Legion Go S is a groundbreaking handheld gaming PC, as it's the first non-Valve device to feature Valve's SteamOS. Previously exclusive to the Steam Deck, SteamOS offers a smoother, more console-like experience compared to Windows-based handhelds like the Asus ROG Ally X and MSI Claw 8 AI+. Valve has been working towards this third-party expansion for some time, and the Legion Go S represents a major milestone.

Recent leaks accurately predicted the Legion Go S's SteamOS variant. Announced alongside the Legion Go 2 at CES 2025, the Legion Go S offers similar power to its predecessor in a more compact form factor. The SteamOS version provides consumers with a compelling alternative in the handheld gaming market.

Lenovo Legion Go S Handheld Gaming PC Details

SteamOS Version

• Utilizes Valve's Linux-based SteamOS.
• May 2025 release at $499.
• Available in a single configuration: 16GB RAM / 512GB storage.

Windows Version

• Runs Windows 11.
• January 2025 release.
• Pricing: $599 (16GB RAM / 1TB storage), $729 (32GB RAM / 1TB storage).

The SteamOS-powered Lenovo Legion Go S, priced at $499 (16GB RAM / 512GB storage), will launch in May 2025. Valve guarantees feature parity with the Steam Deck, ensuring identical software updates (excluding hardware-specific adjustments). A Windows 11 version will also be available, launching in January 2025, starting at $599. While the flagship Legion Go 2 currently lacks a SteamOS option, this could change depending on the Legion Go S's success.

Currently, Lenovo holds the exclusive partnership with Valve for a licensed SteamOS device. However, Valve's announcement of a public SteamOS beta for other handhelds (like the Asus ROG Ally) in the coming months suggests broader accessibility is on the horizon.