Between the ULX and G309 Lightspeed, the ULX comes out ahead in polling rate and weight, while the G309 Lightspeed wins on battery. Overall, the ULX scores 81.5 and the G309 Lightspeed scores 68.2 on our Mars Score.
Which should you buy?
The ULX is the clear pick on raw spec strength, leading by 13.3 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, weight, max dpi.
Pick the G309 Lightspeed if you care most about battery. Its strongest claims are battery.
Both ship with comparable wireless, buttons, 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 — 300.00% more. 4000 Hz vs 1000 Hz.
- ▲Weight — 29.00 g less. 39 vs 68.
- ▲Max DPI — 1.56% more. 26000 vs 25600.
Why Logitech - G309 Lightspeed wins
- ▲Battery — 200.00% more. 300 h vs 100 h.
Spec comparison
Sensor
| Spec | Finalmouse - ULX | Logitech - G309 Lightspeed |
|---|---|---|
| Max DPI | 26000lead | 25600 |
| Max IPS | 650lead | 400 |
| Polling rate | 4000 Hzlead | 1000 Hz |
Design
| Spec | Finalmouse - ULX | Logitech - G309 Lightspeed |
|---|---|---|
| Weight | 39 glead | 68 g |
| Buttons | 6 | 6 |
| Shape | Symmetrical | Right-handed |
Connectivity
| Spec | Finalmouse - ULX | Logitech - G309 Lightspeed |
|---|---|---|
| Wireless | true | true |
| Battery | 100 h | 300 hlead |
Spec-level deep dives
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