Lenovo Legion Go S vs Steam Deck OLED: Why the SteamOS Handheld Might Be the Sweet Spot

According to The Verge, Lenovo’s Legion Go S handheld runs SteamOS, doubles the RAM and storage of the base Steam Deck OLED, and ships with a slightly faster Ryzen Z1 Extreme processor. At a discounted $999.99, it promises a stronger gaming experience for a price that sits between the $789 Deck and the $1,299 Asus ROG Ally X20.
Specs and Price Overview
| Device | CPU | RAM | Storage | Screen | Refresh Rate | OS | MSRP (USD) |
|---|---|---|---|---|---|---|---|
| Lenovo Legion Go S | AMD Ryzen Z1 Extreme | 32 GB | 1 TB SSD | 8‑inch IPS, 1080p | 120 Hz (max) | SteamOS 3 (Linux‑based) | $999.99 (discounted) |
| Steam Deck OLED | AMD Ryzen Z1 Extreme | 16 GB | 512 GB SSD | 7‑inch OLED, 800p | 90 Hz | SteamOS 3 | $789 |
| Asus ROG Ally X20 | AMD Ryzen Z2 Extreme | 32 GB | 1 TB SSD | 7‑inch LCD, 1080p | 120 Hz | Windows 11 | $1,299 |
The table shows that the Legion Go S matches the Ally X20’s RAM and storage but costs $300 less. Its screen is larger and runs at native 1080p, while the Deck OLED trades resolution for an OLED panel that can display deeper blacks.
How SteamOS Improves Handheld Gaming
SteamOS is a Linux‑based operating system that runs Valve’s Steam client in a full‑screen, console‑like mode. Because it strips away background services and desktop UI, the system can dedicate more GPU cycles to the game itself. In practice this means lower frame‑time variance and slightly higher average FPS compared to the same hardware under Windows 11, where drivers and background tasks consume a few percent of performance.
SteamOS also integrates the Steam Deck UI, which maps controller inputs to keyboard‑mouse bindings automatically. For most PC games, you can start a title, press the “A” button, and the game will switch to controller mode without manual configuration. This convenience is a key reason why a Steam‑native handheld feels more “plug‑and‑play” than a Windows device that often requires extra setup.
Where the Legion Go S Fits Among Competitors
The handheld market has three clear tiers:
- Entry‑level – devices like the original Steam Deck (256 GB, 60 Hz) that prioritize affordability over raw power.
- Mid‑range – the Legion Go S and the standard Steam Deck OLED sit here. They offer enough CPU/GPU headroom for most current AAA games at 720p‑1080p, with comfortable ergonomics.
- Premium – the Asus ROG Ally X20 and the upcoming Steam Deck Pro (rumored) push performance toward a small laptop, but their price tags approach $1,300.
The Legion Go S lands squarely in the mid‑range tier but nudges the ceiling upward thanks to its 32 GB of LPDDR5 RAM and 1 TB SSD. Those specs eliminate the storage‑related bottlenecks that can force players to uninstall games mid‑session. The larger 8‑inch IPS panel also reduces eye strain compared with the Deck’s 7‑inch screen, while still delivering a full HD image at up to 120 Hz, which is enough to make motion look smooth in fast shooters.
The Real Trade‑off: Performance vs Cost
The headline numbers look impressive, but the hidden cost is the CPU architecture. The Ryzen Z1 Extreme in the Go S is a “mobile” chip optimized for power efficiency, not raw desktop performance. It outpaces the older Z2 Go found in the Windows‑based Legion Go, but it still lags behind the Z2 Extreme in the Asus Ally X20. In real‑world benchmarks, the Go S usually runs 5‑10 % slower than the Ally X20 in CPU‑heavy titles like Cyberpunk 2077.
That performance gap translates into a lower ceiling for future‑proofing. Games that push the GPU past 50 W of power draw may hit thermal throttling sooner on the Go S than on the Ally X20, which benefits from a larger cooling solution. For users who plan to play today’s library at 1080p 60 fps, the Go S is more than capable. For those chasing 120 fps in competitive shooters, the Ally X20 still offers a measurable edge.
Another trade‑off is software freedom. SteamOS locks you into the Steam ecosystem; while you can install other Linux apps, the experience is curated for gaming. Windows 11 on the Ally X20 lets you run any PC software, but that flexibility comes with driver overhead and occasional compatibility quirks. If you need a handheld for work‑related Linux tools, the Go S might feel restrictive.
Quick Buying Tips
- Prioritize screen real estate? Choose the Legion Go S for its 8‑inch display and 120 Hz capability.
- Need the absolute best frame rates? The Asus ROG Ally X20 still leads, but expect to pay $300 more.
- Running non‑Steam games? Windows‑based handhelds give you broader compatibility; otherwise, stick with SteamOS for smoother performance.
- Watch for future discounts. The Go S is already discounted at Best Buy; price drops on the Deck OLED often bring it under $700, which may shift the value equation.
- Check storage needs early. 1 TB SSD is generous, but games like Starfield can exceed 150 GB; plan your library accordingly.
If you’re comfortable with Steam’s library and want a handheld that feels less cramped than the Deck while staying under $1,000, the Legion Go S makes sense today. Keep an eye on firmware updates—Valve and Lenovo have been improving controller latency and power management, which could close the remaining performance gap without a hardware change.


