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 - Cobra Pro |
|---|---|---|
| Battery | 1680 h | 170 h |
| Polling rate | 125 Hz | 1000 Hz |
| Max DPI | 8000 | 30000 |
| Weight | 150 g | 77 g |
| Buttons | 7 | 10 |
Between the MX Master 4 and Cobra Pro, the MX Master 4 comes out ahead in battery, while the Cobra Pro wins on polling rate / max dpi. Overall, the MX Master 4 scores 50.9 and the Cobra Pro scores 61.5 on our Mars Score.
Which should you buy?
The Cobra Pro is the clear pick on raw spec strength, leading by 10.6 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. The biggest gaps in its favor are battery. The single most decisive one: Battery — 888.24% more. 1680 h vs 170 h.
Pick the Cobra 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. 1000 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 Cobra 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 - Cobra Pro?
Razer - Cobra Pro leads the current Mars Score by 10.6 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.
Choose Razer - Cobra Pro if…
Razer - Cobra 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 — 888.24% more. 1680 h vs 170 h.
Why Razer - Cobra Pro wins
- ▲Polling rate — 700.00% more. 1000 Hz vs 125 Hz.
- ▲Max DPI — 275.00% more. 30000 vs 8000.
- ▲Weight — 73.00 g less. 77 vs 150.
- ▲Buttons — 3.00 more. 10 vs 7.
Spec comparison
Sensor
| Spec | Logitech - MX Master 4 | Razer - Cobra Pro |
|---|---|---|
| Max DPI | 8000 | 30000lead |
| Max IPS | 0 | 750lead |
| Polling rate | 125 Hz | 1000 Hzlead |
Design
| Spec | Logitech - MX Master 4 | Razer - Cobra Pro |
|---|---|---|
| Weight | 150 g | 77 glead |
| Buttons | 7 | 10lead |
| Shape | Right-handed | Symmetrical |
Connectivity
| Spec | Logitech - MX Master 4 | Razer - Cobra Pro |
|---|---|---|
| Wireless | true | true |
| Battery | 1680 hlead | 170 h |