Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Logitech - MX Master 4 | Razer - DeathAdder V3 Pro |
|---|---|---|
| Polling rate | 125 Hz | 4000 Hz |
| Battery | 1680 h | 90 h |
| Max DPI | 8000 | 30000 |
| Weight | 150 g | 63 g |
| Buttons | 7 | 5 |
Between the MX Master 4 and DeathAdder V3 Pro, the MX Master 4 comes out ahead in battery / buttons, while the DeathAdder V3 Pro wins on polling rate / max dpi. Overall, the MX Master 4 scores 50.9 and the DeathAdder V3 Pro scores 68.5 on our Mars Score.
Which should you buy?
The DeathAdder V3 Pro is the clear pick on raw spec strength, leading by 17.6 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 MX Master 4 if you care most about battery / buttons. The biggest gaps in its favor are battery, buttons. The single most decisive one: Battery — 1766.67% more. 1680 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 — 3100.00% more. 4000 Hz vs 125 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 - MX Master 4 or Razer - DeathAdder V3 Pro?
Razer - DeathAdder V3 Pro leads the current Mars Score by 17.6 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 - MX Master 4 if…
Logitech - MX Master 4 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 - MX Master 4 wins
- ▲Battery — 1766.67% more. 1680 h vs 90 h.
- ▲Buttons — 2.00 more. 7 vs 5.
Why Razer - DeathAdder V3 Pro wins
- ▲Polling rate — 3100.00% more. 4000 Hz vs 125 Hz.
- ▲Max DPI — 275.00% more. 30000 vs 8000.
- ▲Weight — 87.00 g less. 63 vs 150.
Spec comparison
Sensor
| Spec | Logitech - MX Master 4 | Razer - DeathAdder V3 Pro |
|---|---|---|
| Max DPI | 8000 | 30000lead |
| Max IPS | 0 | 750lead |
| Polling rate | 125 Hz | 4000 Hzlead |
Design
| Spec | Logitech - MX Master 4 | Razer - DeathAdder V3 Pro |
|---|---|---|
| Weight | 150 g | 63 glead |
| Buttons | 7lead | 5 |
| Shape | Right-handed | Right-handed |
Connectivity
| Spec | Logitech - MX Master 4 | Razer - DeathAdder V3 Pro |
|---|---|---|
| Wireless | true | true |
| Battery | 1680 hlead | 90 h |