Logitech - G309 Lightspeed vs Razer - DeathAdder V3 Pro
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Logitech - G309 Lightspeed | Razer - DeathAdder V3 Pro |
|---|---|---|
| Polling rate | 1000 Hz | 4000 Hz |
| Battery | 300 h | 90 h |
| Max DPI | 25600 | 30000 |
| Weight | 68 g | 63 g |
| Buttons | 6 | 5 |
Between the G309 Lightspeed and DeathAdder V3 Pro, the G309 Lightspeed comes out ahead in battery / buttons, while the DeathAdder V3 Pro wins on polling rate / max dpi. Overall, the G309 Lightspeed scores 63.1 and the DeathAdder V3 Pro scores 68.5 on our Mars Score.
Which should you buy?
The DeathAdder V3 Pro edges ahead on the Mars Score (63.1 vs 68.5), but the 5.4-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the G309 Lightspeed if you care most about battery / buttons. The biggest gaps in its favor are battery, buttons. The single most decisive one: Battery — 233.33% more. 300 h vs 90 h.
Pick the DeathAdder V3 Pro if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are polling rate, max dpi, weight. The single most decisive one: Polling rate — 300.00% more. 4000 Hz vs 1000 Hz.
Both ship with comparable wireless, so those specs do not separate the two — focus on the differences below.
Bottom line: the DeathAdder V3 Pro is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Logitech - G309 Lightspeed or Razer - DeathAdder V3 Pro?
Razer - DeathAdder V3 Pro leads the current Mars Score by 5.4 points.The more useful decision is the trade-off behind that result: compare max dpi, polling rate, weight against the way you will actually use the product.
Choose Logitech - G309 Lightspeed if…
Logitech - G309 Lightspeed has the measurable edge on battery h, button count.
Choose Razer - DeathAdder V3 Pro if…
Razer - DeathAdder V3 Pro has the measurable edge on polling rate hz, max dpi, weight g.
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 Logitech - G309 Lightspeed wins
- ▲Battery — 233.33% more. 300 h vs 90 h.
- ▲Buttons — 1.00 more. 6 vs 5.
Why Razer - DeathAdder V3 Pro wins
- ▲Polling rate — 300.00% more. 4000 Hz vs 1000 Hz.
- ▲Max DPI — 17.19% more. 30000 vs 25600.
- ▲Weight — 5.00 g less. 63 vs 68.
Spec comparison
Sensor
| Spec | Logitech - G309 Lightspeed | Razer - DeathAdder V3 Pro |
|---|---|---|
| Max DPI | 25600 | 30000lead |
| Max IPS | 400 | 750lead |
| Polling rate | 1000 Hz | 4000 Hzlead |
Design
| Spec | Logitech - G309 Lightspeed | Razer - DeathAdder V3 Pro |
|---|---|---|
| Weight | 68 g | 63 glead |
| Buttons | 6lead | 5 |
| Shape | Right-handed | Right-handed |
Connectivity
| Spec | Logitech - G309 Lightspeed | Razer - DeathAdder V3 Pro |
|---|---|---|
| Wireless | true | true |
| Battery | 300 hlead | 90 h |