Keychron
Keychron K2 Wireless Mechanical Keyboard (Version 2)
$84.99Cheaper
Released 2021
Best Mechanical Keyboards · head-to-head
Keychron K2 Wireless Mechanical Keyboard (Version 2) vs NuPhy Air75 V2
A sourced, side-by-side comparison. Keychron K2 Wireless Mechanical Keyboard (Version 2) is cheaper at $84.99. Every spec and price links to its source.
NuPhy
NuPhy Air75 V2
$119.95
Released 2023
Which is better: the Keychron K2 Wireless Mechanical Keyboard (Version 2) or NuPhy Air75 V2?
On the specs we track, they're closely matched. The Keychron K2 Wireless Mechanical Keyboard (Version 2) is the cheaper at $84.99.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Keychron K2 Wireless Mechanical Keyboard (Version 2) | NuPhy Air75 V2 |
|---|---|---|
| US price | $84.99 | $119.95 |
| Brand | Keychron | NuPhy |
| Released | 2021 | 2023 |
| Layout | 75% | 75% |
| Key count | 84 | 84 |
| Switch type | Gateron G Pro (MX-compatible, 3-5 pin) | NuPhy / Gateron KS-33 low-profile (hot-swappable) |
| Hot swappable | Yes | Yes |
| Connectivity | Bluetooth 3.0 / USB-C wired | 2.4GHz / Bluetooth 5.1 / USB-C wired |
| Backlight | White LED or RGB | RGB (40 lighting modes, south-facing LED) |
| Knob | No | No |
| Build material | ABS plastic (standard) or aluminum-frame option | Aluminum frame, ABS bottom case, PBT double-shot keycaps |
| Wireless | Yes | Yes |
| Release year | 2021 | 2023 |
Sources — Keychron K2 Wireless Mechanical Keyboard (Version 2): keychron.com (verified 2026-06-15). NuPhy Air75 V2: nuphy.com (verified 2026-06-15).
What's the difference between the Keychron K2 Wireless Mechanical Keyboard (Version 2) and NuPhy Air75 V2?
Where the two actually differ on the specs we track (4 of 9). Matching specs are omitted.
- Switch type: Keychron K2 Wireless Mechanical Keyboard (Version 2) Gateron G Pro (MX-compatible, 3-5 pin) vs NuPhy Air75 V2 NuPhy / Gateron KS-33 low-profile (hot-swappable)
- Connectivity: Keychron K2 Wireless Mechanical Keyboard (Version 2) Bluetooth 3.0 / USB-C wired vs NuPhy Air75 V2 2.4GHz / Bluetooth 5.1 / USB-C wired
- Backlight: Keychron K2 Wireless Mechanical Keyboard (Version 2) White LED or RGB vs NuPhy Air75 V2 RGB (40 lighting modes, south-facing LED)
- Build material: Keychron K2 Wireless Mechanical Keyboard (Version 2) ABS plastic (standard) or aluminum-frame option vs NuPhy Air75 V2 Aluminum frame, ABS bottom case, PBT double-shot keycaps
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Keychron K2 Wireless Mechanical Keyboard (Version 2)
No sourced tester review yet.
NuPhy Air75 V2
Two whitelisted testers reviewed the exact Air75 V2 (Tom's Hardware, Tom's Guide). Both praise its low-profile typing feel, build, dampened sound and near-wired 1ms wireless for gaming. Tom's Hardware named it Editor's Choice with no stability complaints, while Tom's Guide (Recommended) hit a recurring macOS freezing bug that a firmware flash did not fix. (2 sourced reviews, 1 lab-tested.)
Praised: Low-profile keycaps give a familiar, comfortable near-full-mechanical typing feel; Solid build (aluminum top) with dampened, well-tuned sound; Large 4,000mAh battery / strong battery life for a thin board.
Flagged: Flat keycap profile has a learning curve; VIA is the only config software and feels limited/rickety; no dedicated app; Persistent macOS freezing bug not fixed by a firmware flash.