Between the K2 Max and RK R98 Pro, the K2 Max comes out ahead in several specs, while the RK R98 Pro wins on rotary knob and size. Overall, the K2 Max scores 44.3 and the RK R98 Pro 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.
The K2 Max doesn't pull ahead on any single popular-comparison spec — its strengths sit in the spec table groups rather than the headline advantages.
Pick the RK R98 Pro if you care most about rotary knob and size. Its strongest claims are rotary knob, size.
Both ship with comparable hot-swappable, wireless, polling rate, 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
- No decisive advantages.
Why Royal Kludge - RK R98 Pro wins
- ▲Has Rotary knob.
- ▲Size: 96% (vs 75%).
Spec comparison
Switches
| Spec | Keychron - K2 Max | Royal Kludge - RK R98 Pro |
|---|---|---|
| Switch type | Gateron G Pro | RK Cream Yellow |
| Hot-swappable | true | true |
Layout & Build
| Spec | Keychron - K2 Max | Royal Kludge - RK R98 Pro |
|---|---|---|
| Size | 75% | 96%lead |
| RGB | true | true |
| Rotary knob | false | truelead |
| Case material | Plastic | Plastic |
Connectivity
| Spec | Keychron - K2 Max | Royal Kludge - RK R98 Pro |
|---|---|---|
| Wireless | true | true |
| 2.4 GHz | true | true |
| Battery | 100 h | 150 hlead |
| Polling rate | 1000 Hz | 1000 Hz |
Frequently asked
Spec-level deep dives
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