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The unit also comes with 16GB RAM and 512GB SSD.

It might not have all the conveniences of newer handhelds, but it’s still a solid gaming rig.

ASUS ROG Ally frontside.

Both the Legion Go S and the ROG Ally support up to 120Hz refresh rate.

Lenovo’s new gaming handheld will be available in both a SteamOS and a Windows 11 option.

Depending on the configuration, it can come powered with a custom Z2 Go or a Z1 Extreme chip.

It also comes with a whopping 32GB RAM and 1TB SSD.

Render of the Lenovo Legion Go S on a white background.

The touchscreen is somewhat large, measuring 8 inches.

The display supports VRR, native landscape, and up to a 120Hz refresh rate.

you’ve got the option to make use of accessories using the two USB4 ports.

Lenovo Legion Go S next to ASUS ROG Ally on pink and purple background.

Both the Legion Go S and the ROG Ally support up to 120Hz refresh rate.

The original whiteASUS ROG Ally, which launched in 2023, was the first majorgaming handheldto runWindows 11.

I was the one who conducted testing and wrote up both ourROG Ally reviewandROG Ally X reviewfor Windows Central.

Since then, multiple competitors have come out of the woodwork, including the Legion Go line.

Back sides of the Lenovo Legion Go S and ROG Ally.

The Legion Go S and ROG Ally both have back buttons, but the Go S also has adjustable trigger switches.

Here’s how the Legion Go S compares to the ROG Ally.

Meanwhile, the ROG Ally only has Windows 11 as an operating system.

Because of this, I’d consider the ROG Ally the best value buy in this instance.

A Lenovo Legion Go S with SteamOS held in the hand.

The Nebula Violet Legion Go S — Powered by SteamOS is cheaper than ROG Ally.

To be clear, the Legion Go S Windows handheld costs more because it offers newer features.

In other words, we won’t ever see it in another handheld.

However, our own findings didn’t match this.

Fallout 4 on ROG Ally.

ROG Ally offers a better value due to its balance of performance and price.

Still, the ROG Ally Z1 Extreme performed better in our benchmarks and testing than the Go S did.

Games played smoother, too.

These are all very nice features to have.

A Lenovo Legion Go S with Windows held in the hand and showing the new Legion Space app.

The Z2 Go chip in Legion Go S has better power consumption, but isn’t as powerful as Z1 Extreme.

For one, the Legion Go S offers Hall Effect joysticks, which should never suffer from drift.

This is something that is lacking in the ROG Ally.

Although, there haven’t been that many reports of drift in the ASUS handheld.

Diablo 4 on Asus ROG Ally.

The Legion Go S has a larger 8-inch display than the 7-inch ROG Ally display.

Lastly, the Go S has adjustable trigger switches on the back to give more custom control.

The one thing that ROG Ally has that the Go S doesn’t is a fingerprint reader.

It doesn’t always work correctly, but it can be very nice to have when it does.

A thumb touching the Lenovo Legion Go S touchpad.

Legion Go S has a small touchpad while the ROG Ally doesn’t have a touchpad at all.(Image credit: Rebecca Spear / Windows Central)

In case you’re wondering, theLegion Go 2prototype does have a fingerprint reader.

These are features in common with the Ally.

The Go S also outshines the original ROG Ally when it comes to ports.

Image showing a SteamOS button on the Nebula Violet Legion Go S in place of the Legion Space button on the white Legion Go S.

The SteamOS version of the Legion Go S has a SteamOS button.(Image credit: Windows Central / Lenovo)

The Ally comes with Armoury Crate installed, while the Go S comes with Legion Space.

These applications let you adjust system configs while also serving as game launchers and stores.

However, ROG Ally’s Armoury Crate provides better options and customization options.

A split image showing the Lenovo Legion Go S back trigger switches being changed.

There are adjustable trigger switches on the back of the Legion Go S.(Image credit: Lenovo)

So, between the two Windows devices,ROG Allyis better.

; It’s one of the worst areas of these devices.

That’s not ideal.

Top and back view of the white Lenovo Legion Go S.

The Legion Go S does not have detachable controllers or a built-in kickstand.(Image credit: Windows Central / Lenovo)

As such, neither equipment really offers satisfactory battery life.

TL;DR: BATTERY LIFE WINNER:Neither gadget really has amazing battery life.

Of the twoLegion Go Sis slightly better, but ROG Ally X lasts even longer.

Render of the Lenovo Legion Go S from the top, front, and bottom, showing the dual USB Type-C 4.0 ports, 3.5mm audio jack, and microSD card slot.

Several improvements have been made to the Legion Go S over the original Legion go.(Image credit: Lenovo)

In terms of size and weight, the Go S is a slightly bigger gadget.

It’s 11.77 inches wide, 5.02 inches tall, 0.89 inches deep, and weighs 1.61 pounds.

Performance

The ROG Ally Z1 Extreme offers better performance than the Legion Go S Z2 Go.

Lenovo Legion Go S on top of the ROG Ally with ports facing the camera.

The Legion Go S has two USB-C ports while the ROG Ally only has one.

There’s no denying that the larger 8.8-inch touchscreen on the Legion Go S is better.

ROG Ally X currently has the best handheld battery life.

Meanwhile, the Ally is likely a better value and offers better performance.

The Lenovo Legion Go S in a dock on a desk, with various games hovering around it.

Legion Go S vs ROG Ally: Which should I buy?

Either gaming handheld could be a great pick, depending on what you value most in your gaming rig.

What’s more, its Z2 Go chip offers lower performance than those Z1 Extreme devices.

Gaming handhelds: Steam Deck, ROG Ally, Nintendo Switch OLED, and more

It comes with 16GB RAM, 512GB SSD, and a 7-inch touchscreen.

It’s a great value for the configuration and features that it offers.

It has twice the battery capacity and doubles the storage space of the original ROG Ally.

ROG Ally triggers.

ROG Ally offers more settings and customizations in its Armoury Crate software than the Legion Go S does in Legion Space.

Plus, the controls and joysticks have been upgraded for the better.

This new unit is ideal for people who simply want a handheld gaming system.

Depending on the configuration you go with, it can run SteamOS or Windows 11.

The Lenovo Legion Go S held in the hands, showing the new Legion Space software.

Settings and control mapping can be adjusted within Legion Space.

ROG Ally running Cyberpunk 2077 benchmark.

ROG Ally most likely offers better performance over Legion Go S.(Image credit: Rebecca Spear / Windows Central)

Angled view at the white Lenovo Legion Go S.

The Legion Go most likely has better battery life than the ROG Ally.(Image credit: Windows Central / Lenovo)

HP Omen PC

ROG Ally X side view.

Front view of Lenovo Legion Go S and Legion Go on a blue background.

MSI Claw 8 AI+ propped up next to an ROG Ally X on a table.

Nintendo Switch 2 on the left with ROG Ally and ROG Ally X on the right.

MSI Claw 8 AI+ flat on a table with a Steam Deck below it.

Lenovo Legion Go on AVerMedia X�TRA GO

MSI Claw 8 AI+ handheld with �The Best� award from Windows Central

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Lenovo Legion Go S on its back above the ROG Ally.

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AMD Ryzen 7 7800X3D and Ryzen 9 9700X held in hand

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U.S. President Donald Trump holds up a chart while speaking during a “Make America Wealthy Again” trade announcement event in the Rose Garden at the White House on April 2, 2025 in Washington, DC.