Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Finalmouse - ULX | Lamzu - Thorn |
|---|---|---|
| Battery | 100 h | 80 h |
| Max DPI | 26000 | 30000 |
| Weight | 39 g | 52 g |
Between the ULX and Thorn, the ULX comes out ahead in battery / weight, while the Thorn wins on max dpi. Overall, the ULX scores 71.9 and the Thorn scores 70.5 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (71.9 vs 70.5). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
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 battery, weight. The single most decisive one: Battery — 25.00% more. 100 h vs 80 h.
Pick the Thorn if you care most about max dpi. Its strongest claims are max dpi. The single most decisive one: Max DPI — 15.38% more. 30000 vs 26000.
Both ship with comparable polling rate, wireless, 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: Finalmouse - ULX or Lamzu - Thorn?
Finalmouse - ULX leads the current Mars Score by 1.4 points.The more useful decision is the trade-off behind that result: compare max dpi, weight against the way you will actually use the product.
Choose Finalmouse - ULX if…
Finalmouse - ULX has the measurable edge on battery h, weight g.
Choose Lamzu - Thorn if…
Lamzu - Thorn has the measurable edge on max dpi.
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 Finalmouse - ULX wins
- ▲Battery — 25.00% more. 100 h vs 80 h.
- ▲Weight — 13.00 g less. 39 vs 52.
Why Lamzu - Thorn wins
- ▲Max DPI — 15.38% more. 30000 vs 26000.
Spec comparison
Sensor
| Spec | Finalmouse - ULX | Lamzu - Thorn |
|---|---|---|
| Max DPI | 26000 | 30000lead |
| Max IPS | 650 | 750lead |
| Polling rate | 4000 Hz | 4000 Hz |
Design
| Spec | Finalmouse - ULX | Lamzu - Thorn |
|---|---|---|
| Weight | 39 glead | 52 g |
| Buttons | 6 | 6 |
| Shape | Symmetrical | Symmetrical |
Connectivity
| Spec | Finalmouse - ULX | Lamzu - Thorn |
|---|---|---|
| Wireless | true | true |
| Battery | 100 hlead | 80 h |