Logitech - G309 Lightspeed vs Razer - DeathAdder V4 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 V4 Pro |
|---|---|---|
| Polling rate | 1000 Hz | 8000 Hz |
| Battery | 300 h | 150 h |
| Max DPI | 25600 | 45000 |
| Weight | 68 g | 56 g |
| Buttons | 6 | 8 |
Between the G309 Lightspeed and DeathAdder V4 Pro, the G309 Lightspeed comes out ahead in battery, while the DeathAdder V4 Pro wins on polling rate / max dpi. Overall, the G309 Lightspeed scores 63.1 and the DeathAdder V4 Pro scores 79.3 on our Mars Score.
Which should you buy?
The DeathAdder V4 Pro is the clear pick on raw spec strength, leading by 16.2 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 G309 Lightspeed if you care most about battery. The biggest gaps in its favor are battery. The single most decisive one: Battery — 100.00% more. 300 h vs 150 h.
Pick the DeathAdder V4 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, among others. The single most decisive one: Polling rate — 700.00% more. 8000 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 V4 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 V4 Pro?
Razer - DeathAdder V4 Pro leads the current Mars Score by 16.2 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.
Choose Razer - DeathAdder V4 Pro if…
Razer - DeathAdder V4 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 — 100.00% more. 300 h vs 150 h.
Why Razer - DeathAdder V4 Pro wins
- ▲Polling rate — 700.00% more. 8000 Hz vs 1000 Hz.
- ▲Max DPI — 75.78% more. 45000 vs 25600.
- ▲Weight — 12.00 g less. 56 vs 68.
- ▲Buttons — 2.00 more. 8 vs 6.
Spec comparison
Sensor
| Spec | Logitech - G309 Lightspeed | Razer - DeathAdder V4 Pro |
|---|---|---|
| Max DPI | 25600 | 45000lead |
| Max IPS | 400 | 800lead |
| Polling rate | 1000 Hz | 8000 Hzlead |
Design
| Spec | Logitech - G309 Lightspeed | Razer - DeathAdder V4 Pro |
|---|---|---|
| Weight | 68 g | 56 glead |
| Buttons | 6 | 8lead |
| Shape | Right-handed | Right-handed |
Connectivity
| Spec | Logitech - G309 Lightspeed | Razer - DeathAdder V4 Pro |
|---|---|---|
| Wireless | true | true |
| Battery | 300 hlead | 150 h |