Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Ducky - One 3 TKL | Glorious - GMMK 3 Pro |
|---|---|---|
| Polling rate | 1000 Hz | 8000 Hz |
| Rotary knob | false | true |
| Size | TKL | 75% |
| Wireless | false | true |
Between the One 3 TKL and GMMK 3 Pro, the One 3 TKL comes out ahead in size, while the GMMK 3 Pro wins on polling rate / rotary knob. Overall, the One 3 TKL scores 64.5 and the GMMK 3 Pro scores 95 on our Mars Score.
Which should you buy?
The GMMK 3 Pro is the clear pick on raw spec strength, leading by 30.5 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
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 GMMK 3 Pro if you care most about polling rate / rotary knob. Its strongest claims are polling rate, rotary knob, wireless. The single most decisive one: Polling rate — 700.00% more. 8000 Hz vs 1000 Hz.
Both ship with comparable hot-swappable, so those specs do not separate the two — focus on the differences below.
Bottom line: the GMMK 3 Pro 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: Ducky - One 3 TKL or Glorious - GMMK 3 Pro?
Glorious - GMMK 3 Pro leads the current Mars Score by 30.5 points.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 Glorious - GMMK 3 Pro if…
Glorious - GMMK 3 Pro has the measurable edge on polling rate hz, has knob, 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 Glorious - GMMK 3 Pro wins
- ▲Polling rate — 700.00% more. 8000 Hz vs 1000 Hz.
- ▲Has Rotary knob.
- ▲Wireless: true (vs false).
Spec comparison
Switches
| Spec | Ducky - One 3 TKL | Glorious - GMMK 3 Pro |
|---|---|---|
| Switch type | Cherry MX | Glorious Fox |
| Hot-swappable | true | true |
Layout & Build
| Spec | Ducky - One 3 TKL | Glorious - GMMK 3 Pro |
|---|---|---|
| Size | TKLlead | 75% |
| RGB | true | true |
| Rotary knob | false | truelead |
| Case material | Plastic | Aluminum |
Connectivity
| Spec | Ducky - One 3 TKL | Glorious - GMMK 3 Pro |
|---|---|---|
| Wireless | false | truelead |
| 2.4 GHz | false | truelead |
| Battery | 0 h | 150 hlead |
| Polling rate | 1000 Hz | 8000 Hzlead |