Between the K2 Max and Halo65, the K2 Max comes out ahead in size, while the Halo65 wins on several specs. Overall, the K2 Max scores 44.3 and the Halo65 scores 44.3 on our Mars Score.
Which should you buy?
These two are evenly matched on the broad strokes, with the decision sitting on which individual spec advantages weigh more for your use.
Pick the K2 Max if you care most about size. The biggest gaps in its favor are size.
The Halo65 similarly doesn't carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable switch type, hot-swappable, wireless, so those specs don't 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 tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Keychron - K2 Max wins
- ▲Size: 75% (vs 65%).
Why NuPhy - Halo65 wins
- No decisive advantages.
Spec comparison
Switches
| Spec | Keychron - K2 Max | NuPhy - Halo65 |
|---|---|---|
| Switch type | Gateron G Pro | Gateron G Pro |
| Hot-swappable | true | true |
Layout & Build
| Spec | Keychron - K2 Max | NuPhy - Halo65 |
|---|---|---|
| Size | 75%lead | 65% |
| RGB | true | true |
| Rotary knob | false | false |
| Case material | Plastic | Plastic |
Connectivity
| Spec | Keychron - K2 Max | NuPhy - Halo65 |
|---|---|---|
| Wireless | true | true |
| 2.4 GHz | true | true |
| Battery | 100 h | 100 h |
| Polling rate | 1000 Hz | 1000 Hz |
Frequently asked
Spec-level deep dives
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