Between the GMMK 3 Pro and MX Keys S, the GMMK 3 Pro comes out ahead in polling rate and hot-swappable, while the MX Keys S wins on size. Overall, the GMMK 3 Pro scores 95 and the MX Keys S scores 44.3 on our Mars Score.
Which should you buy?
The GMMK 3 Pro is the clear pick on raw spec strength, leading by 50.7 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the GMMK 3 Pro if you care most about polling rate and hot-swappable. The biggest gaps in its favor are polling rate, hot-swappable, rotary knob.
Pick the MX Keys S if you care most about size. Its strongest claims are size.
Both ship with comparable wireless, so those specs don't separate the two — focus on the differences below.
Bottom line: the GMMK 3 Pro is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Glorious - GMMK 3 Pro wins
- ▲Polling rate — 700.00% more. 8000 Hz vs 1000 Hz.
- ▲Has Hot-swappable.
- ▲Has Rotary knob.
Why Logitech - MX Keys S wins
- ▲Size: Full (vs 75%).
Spec comparison
Switches
| Spec | Glorious - GMMK 3 Pro | Logitech - MX Keys S |
|---|---|---|
| Switch type | Glorious Fox | Scissor |
| Hot-swappable | truelead | false |
Layout & Build
| Spec | Glorious - GMMK 3 Pro | Logitech - MX Keys S |
|---|---|---|
| Size | 75% | Fulllead |
| RGB | truelead | false |
| Rotary knob | truelead | false |
| Case material | Aluminum | Plastic |
Connectivity
| Spec | Glorious - GMMK 3 Pro | Logitech - MX Keys S |
|---|---|---|
| Wireless | true | true |
| 2.4 GHz | truelead | false |
| Battery | 150 h | 240 hlead |
| Polling rate | 8000 Hzlead | 1000 Hz |
Frequently asked
Spec-level deep dives
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