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 and 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, with the decision sitting 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 and rotary knob. Its strongest claims are hot-swappable, rotary knob.
Both ship with comparable 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 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 |
Frequently asked
Spec-level deep dives
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