Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Endgame Gear - OP1 8K | Finalmouse - ULX |
|---|---|---|
| Polling rate | 8000 Hz | 4000 Hz |
| Weight | 50 g | 39 g |
| Wireless | false | true |
| Battery | 0 h | 100 h |
Between the OP1 8K and ULX, the OP1 8K comes out ahead in polling rate, while the ULX wins on weight / wireless. Overall, the OP1 8K scores 75.8 and the ULX scores 71.9 on our Mars Score.
Which should you buy?
The OP1 8K edges ahead on the Mars Score (75.8 vs 71.9), but the 3.9-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the OP1 8K if you care most about polling rate. The biggest gaps in its favor are polling rate. The single most decisive one: Polling rate — 100.00% more. 8000 Hz vs 4000 Hz.
Pick the ULX if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are weight, wireless, battery. The single most decisive one: Weight — 11.00 g less. 39 vs 50.
Both ship with comparable max dpi, buttons, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: Endgame Gear - OP1 8K or Finalmouse - ULX?
Endgame Gear - OP1 8K leads the current Mars Score by 3.9 points.The more useful decision is the trade-off behind that result: compare polling rate, weight, wireless against the way you will actually use the product.
Choose Endgame Gear - OP1 8K if…
Endgame Gear - OP1 8K has the measurable edge on polling rate hz.
Choose Finalmouse - ULX if…
Finalmouse - ULX has the measurable edge on weight g, is wireless, battery h.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Endgame Gear - OP1 8K wins
- ▲Polling rate — 100.00% more. 8000 Hz vs 4000 Hz.
Why Finalmouse - ULX wins
- ▲Weight — 11.00 g less. 39 vs 50.
- ▲Wireless: true (vs false).
- ▲Battery: 100 h vs 0 h.
Spec comparison
Sensor
| Spec | Endgame Gear - OP1 8K | Finalmouse - ULX |
|---|---|---|
| Max DPI | 26000 | 26000 |
| Max IPS | 650 | 650 |
| Polling rate | 8000 Hzlead | 4000 Hz |
Design
| Spec | Endgame Gear - OP1 8K | Finalmouse - ULX |
|---|---|---|
| Weight | 50 g | 39 glead |
| Buttons | 6 | 6 |
| Shape | Symmetrical | Symmetrical |
Connectivity
| Spec | Endgame Gear - OP1 8K | Finalmouse - ULX |
|---|---|---|
| Wireless | false | truelead |
| Battery | 0 h | 100 hlead |