Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Ducky - One 3 TKL | NuPhy - Air75 V2 |
|---|---|---|
| Size | TKL | 75% |
| Wireless | false | true |
Between the One 3 TKL and Air75 V2, the One 3 TKL comes out ahead in size, while the Air75 V2 wins on wireless. Overall, the One 3 TKL scores 64.5 and the Air75 V2 scores 64.5 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 One 3 TKL if you care most about size. The biggest gaps in its favor are size. The single most decisive one: Size: TKL (vs 75%).
Pick the Air75 V2 if you care most about wireless. Its strongest claims are wireless. The single most decisive one: Wireless: true (vs false).
Both ship with comparable hot-swappable, polling rate, rotary knob, 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.
Which should you buy: Ducky - One 3 TKL or NuPhy - Air75 V2?
The two products are effectively tied on the current Mars Score.The more useful decision is the trade-off behind that result: compare size, wireless against the way you will actually use the product.
Choose Ducky - One 3 TKL if…
Ducky - One 3 TKL has the measurable edge on size.
Choose NuPhy - Air75 V2 if…
NuPhy - Air75 V2 has the measurable edge on 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 Ducky - One 3 TKL wins
- ▲Size: TKL (vs 75%).
Why NuPhy - Air75 V2 wins
- ▲Wireless: true (vs false).
Spec comparison
Switches
| Spec | Ducky - One 3 TKL | NuPhy - Air75 V2 |
|---|---|---|
| Switch type | Cherry MX | Gateron Low-profile |
| Hot-swappable | true | true |
Layout & Build
| Spec | Ducky - One 3 TKL | NuPhy - Air75 V2 |
|---|---|---|
| Size | TKLlead | 75% |
| RGB | true | true |
| Rotary knob | false | false |
| Case material | Plastic | Aluminum + Plastic |
Connectivity
| Spec | Ducky - One 3 TKL | NuPhy - Air75 V2 |
|---|---|---|
| Wireless | false | truelead |
| 2.4 GHz | false | truelead |
| Battery | 0 h | 120 hlead |
| Polling rate | 1000 Hz | 1000 Hz |