Between the ULX and MX Master 4, the ULX comes out ahead in polling rate and max dpi, while the MX Master 4 wins on battery and buttons. Overall, the ULX scores 81.5 and the MX Master 4 scores 35 on our Mars Score.
Which should you buy?
The ULX is the clear pick on raw spec strength, leading by 46.5 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 ULX if you carry the device everywhere and weight or thickness has been the deciding factor before. The biggest gaps in its favor are polling rate, max dpi, weight.
Pick the MX Master 4 if you care most about battery and buttons. Its strongest claims are battery, buttons.
Both ship with comparable wireless, so those specs don't separate the two — focus on the differences below.
Bottom line: the ULX is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Finalmouse - ULX wins
- ▲Polling rate — 3100.00% more. 4000 Hz vs 125 Hz.
- ▲Max DPI — 225.00% more. 26000 vs 8000.
- ▲Weight — 111.00 g less. 39 vs 150.
Why Logitech - MX Master 4 wins
- ▲Battery — 1580.00% more. 1680 h vs 100 h.
- ▲Buttons — 1.00 more. 7 vs 6.
Spec comparison
Sensor
| Spec | Finalmouse - ULX | Logitech - MX Master 4 |
|---|---|---|
| Max DPI | 26000lead | 8000 |
| Max IPS | 650lead | 0 |
| Polling rate | 4000 Hzlead | 125 Hz |
Design
| Spec | Finalmouse - ULX | Logitech - MX Master 4 |
|---|---|---|
| Weight | 39 glead | 150 g |
| Buttons | 6 | 7lead |
| Shape | Symmetrical | Right-handed |
Connectivity
| Spec | Finalmouse - ULX | Logitech - MX Master 4 |
|---|---|---|
| Wireless | true | true |
| Battery | 100 h | 1680 hlead |
Frequently asked
Spec-level deep dives
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