Between the MX Keys S and RK R98 Pro, the MX Keys S comes out ahead in size, while the RK R98 Pro wins on hot-swappable / rotary knob. Overall, the MX Keys S 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; the decision sits on which individual spec advantages weigh more for your use.
Pick the MX Keys S if you care most about size. The biggest gaps in its favor are size.
Pick the RK R98 Pro if you care most about hot-swappable / rotary knob. Its strongest claims are hot-swappable, rotary knob.
Both ship with comparable wireless, polling rate, 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.
Why Logitech - MX Keys S wins
- ▲Size: Full (vs 96%).
Why Royal Kludge - RK R98 Pro wins
- ▲Has Hot-swappable.
- ▲Has Rotary knob.
Spec comparison
Switches
| Spec | Logitech - MX Keys S | Royal Kludge - RK R98 Pro |
|---|---|---|
| Switch type | Scissor | RK Cream Yellow |
| Hot-swappable | false | truelead |
Layout & Build
| Spec | Logitech - MX Keys S | Royal Kludge - RK R98 Pro |
|---|---|---|
| Size | Fulllead | 96% |
| RGB | false | truelead |
| Rotary knob | false | truelead |
| Case material | Plastic | Plastic |
Connectivity
| Spec | Logitech - MX Keys S | Royal Kludge - RK R98 Pro |
|---|---|---|
| Wireless | true | true |
| 2.4 GHz | false | truelead |
| Battery | 240 hlead | 150 h |
| Polling rate | 1000 Hz | 1000 Hz |
Spec-level deep dives
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