Between the K70 MAX and BlackWidow V4 Pro, the K70 MAX comes out ahead in several specs, while the BlackWidow V4 Pro wins on several specs. Overall, the K70 MAX scores 73.9 and the BlackWidow V4 Pro scores 73.9 on our Mars Score.
Which should you buy?
These two are evenly matched on the broad strokes; the decision sits on which individual spec advantages weigh more for your use.
The K70 MAX does not pull ahead on any single popular-comparison spec — its strengths sit in the spec-table groups rather than the headline advantages.
The BlackWidow V4 Pro similarly does not carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable size, hot-swappable, wireless, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: Corsair - K70 MAX or Razer - BlackWidow V4 Pro?
The two products are effectively tied on the current Mars Score.The more useful decision is the trade-off behind that result: compare the highlighted specifications against the way you will actually use the product.
Choose Corsair - K70 MAX if…
Corsair - K70 MAX does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
Choose Razer - BlackWidow V4 Pro if…
Razer - BlackWidow V4 Pro does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
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 Corsair - K70 MAX wins
- No decisive advantages.
Why Razer - BlackWidow V4 Pro wins
- No decisive advantages.
Spec comparison
Switches
| Spec | Corsair - K70 MAX | Razer - BlackWidow V4 Pro |
|---|---|---|
| Switch type | MGX Magnetic | Razer Green |
| Hot-swappable | false | false |
Layout & Build
| Spec | Corsair - K70 MAX | Razer - BlackWidow V4 Pro |
|---|---|---|
| Size | Full | Full |
| RGB | true | true |
| Rotary knob | true | true |
| Case material | Aluminum | Aluminum |
Connectivity
| Spec | Corsair - K70 MAX | Razer - BlackWidow V4 Pro |
|---|---|---|
| Wireless | false | false |
| 2.4 GHz | false | false |
| Battery | 0 h | 0 h |
| Polling rate | 8000 Hz | 8000 Hz |