Between the ULX and DeathAdder V4 Pro, the ULX comes out ahead in weight, while the DeathAdder V4 Pro wins on polling rate and max dpi. Overall, the ULX scores 81.5 and the DeathAdder V4 Pro scores 90.5 on our Mars Score.
Which should you buy?
The DeathAdder V4 Pro is the clear pick on raw spec strength, leading by 9.0 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 weight.
Pick the DeathAdder V4 Pro if you care most about polling rate and max dpi. Its strongest claims are polling rate, max dpi, battery, among others.
Both ship with comparable wireless, so those specs don't separate the two — focus on the differences below.
Bottom line: the DeathAdder V4 Pro 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
- ▲Weight — 17.00 g less. 39 vs 56.
Why Razer - DeathAdder V4 Pro wins
- ▲Polling rate — 100.00% more. 8000 Hz vs 4000 Hz.
- ▲Max DPI — 73.08% more. 45000 vs 26000.
- ▲Battery — 50.00% more. 150 h vs 100 h.
- ▲Buttons — 2.00 more. 8 vs 6.
Spec comparison
Sensor
| Spec | Finalmouse - ULX | Razer - DeathAdder V4 Pro |
|---|---|---|
| Max DPI | 26000 | 45000lead |
| Max IPS | 650 | 800lead |
| Polling rate | 4000 Hz | 8000 Hzlead |
Design
| Spec | Finalmouse - ULX | Razer - DeathAdder V4 Pro |
|---|---|---|
| Weight | 39 glead | 56 g |
| Buttons | 6 | 8lead |
| Shape | Symmetrical | Right-handed |
Connectivity
| Spec | Finalmouse - ULX | Razer - DeathAdder V4 Pro |
|---|---|---|
| Wireless | true | true |
| Battery | 100 h | 150 hlead |
Frequently asked
Spec-level deep dives
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