Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Logitech - PRO X TKL RAPID | NuPhy - Air75 V2 |
|---|---|---|
| Polling rate | 8000 Hz | 1000 Hz |
| Hot-swappable | false | true |
| Size | TKL | 75% |
| Wireless | false | true |
Between the PRO X TKL RAPID and Air75 V2, the PRO X TKL RAPID comes out ahead in polling rate / size, while the Air75 V2 wins on hot-swappable / wireless. Overall, the PRO X TKL RAPID scores 56.6 and the Air75 V2 scores 64.5 on our Mars Score.
Which should you buy?
The Air75 V2 edges ahead on the Mars Score (56.6 vs 64.5), but the 7.9-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the PRO X TKL RAPID if you care most about polling rate / size. The biggest gaps in its favor are polling rate, size. The single most decisive one: Polling rate — 700.00% more. 8000 Hz vs 1000 Hz.
Pick the Air75 V2 if you care most about hot-swappable / wireless. Its strongest claims are hot-swappable, wireless. The single most decisive one: Has Hot-swappable.
Both ship with comparable rotary knob, so those specs do not separate the two — focus on the differences below.
Bottom line: the Air75 V2 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Logitech - PRO X TKL RAPID or NuPhy - Air75 V2?
NuPhy - Air75 V2 leads the current Mars Score by 7.9 points.The more useful decision is the trade-off behind that result: compare size, wireless, hot-swappable against the way you will actually use the product.
Choose Logitech - PRO X TKL RAPID if…
Logitech - PRO X TKL RAPID has the measurable edge on polling rate hz, size.
Choose NuPhy - Air75 V2 if…
NuPhy - Air75 V2 has the measurable edge on is hot swap, is wireless.
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 Logitech - PRO X TKL RAPID wins
- ▲Polling rate — 700.00% more. 8000 Hz vs 1000 Hz.
- ▲Size: TKL (vs 75%).
Why NuPhy - Air75 V2 wins
- ▲Has Hot-swappable.
- ▲Wireless: true (vs false).
Spec comparison
Switches
| Spec | Logitech - PRO X TKL RAPID | NuPhy - Air75 V2 |
|---|---|---|
| Switch type | GX Optical Linear Hall-effect | Gateron Low-profile |
| Hot-swappable | false | truelead |
Layout & Build
| Spec | Logitech - PRO X TKL RAPID | NuPhy - Air75 V2 |
|---|---|---|
| Size | TKLlead | 75% |
| RGB | true | true |
| Rotary knob | false | false |
| Case material | Aluminum | Aluminum + Plastic |
Connectivity
| Spec | Logitech - PRO X TKL RAPID | NuPhy - Air75 V2 |
|---|---|---|
| Wireless | false | truelead |
| 2.4 GHz | false | truelead |
| Battery | 0 h | 120 hlead |
| Polling rate | 8000 Hzlead | 1000 Hz |