Compare
Pick two boards from the directory and see how they differ.
Shaded rows are where they differ.
| Spec |  NuPhy NuPhy Air75 V2 $120–$130 “Low-profile done right” |  Keychron Keychron K3 Max $90–$110 “K3 Max, from Keychron's store” |
|---|---|---|
| Price , different | $120–$130 | $90–$110 |
| Size | 75% | 75% |
| Type | Pre-built | Pre-built |
| Connectivity | Wireless + Wired | Wireless + Wired |
| Released | 2023 | 2023 |
| Mounting , different | Top Mount | Integrated Plate |
| Case , different | Aluminum Top / ABS Bottom | ABS with aluminum frame |
| Colors , different | Basalt Black, Ionic White, Lunar Gray | Black, White, White Gray |
| Weight , different | 598g | 525 g |
| Dimensions , different | 316.4 x 132.5 x 13.5mm | 306 x 116 mm |
| Typing angle , different | 3.5° / 6.5° / 8.5° (adjustable feet) | Not listed |
| Front height , different | 13.5mm | Not listed |
| Switches | Low Profile | Low Profile |
| Profile | Low Profile | Low Profile |
| Keycaps , different | Double-shot PBT, Low Profile | Low-profile double-shot PBT |
| PCB , different | Hot-swap, Low Profile | Hot-swap |
| Plates , different | Integrated | Not listed |
| Battery , different | 4000mAh (up to 220h, RGB off) | 1550 mAh, up to 73 hours |
| Compatible switches , different | Gateron Low Profile (KS-33) | Keychron low-profile |
| Software , different | QMK, VIA | QMK, VIA, Keychron Launcher |
| NKRO | Yes | Yes |
| RGB | Yes | Yes |
| Features , different | Low Profile, Hot-swap, QMK/VIA, Bluetooth + 2.4GHz, Double-shot PBT Keycaps, Mac Optimized, RGB Backlighting, Gateron Low Profile (KS-33), USB-C | 75% layout, Tri-mode, Hot-swap, QMK/VIA, Low profile |
| Good for , different | Mac users and laptop switchers who want a thin mechanical board People who work across several devices Portable setups (598 g) Anyone who wants QMK/VIA in a low-profile board | Travelers who want a thin, dongle-equipped 75% QMK/VIA users who need a low-profile board People who split time between a PC and a tablet |
| Skip if , different | People who want full-height MX-style switch feel Buyers who want to use Kailh Choc switches Anyone who needs backlit legends without swapping keycaps Buyers looking for the cheapest wireless option | Anyone who wants a rich, deep sound Gamers who want 8 kHz or Hall-effect features Buyers who want an all-day desk board |
| Pros , different | Low-profile switches with about 75 to 80 percent of the travel of full-height switches, per Tom's Hardware 2.4GHz at 1000Hz polling, which Tom's Hardware could not tell apart from wired in a shooter Up to 220 hours of battery with lights off per NuPhy, and 35 to 57 hours with all lights on Double-shot PBT keycaps and pre-lubed switches, both praised by Tom's Hardware QMK/VIA remapping with eight layers (Tom's Hardware) Mac/Windows switch with alternate keycaps, and AirFeet that let it sit on top of a laptop Four spare switches and seven spare keycaps in the box (NuPhy) | 2.4 GHz at 1000 Hz, Bluetooth and wired (maker) SemiPro found the dongle connection stable QMK/VIA and PBT keycaps Foam improved sound slightly over the K3 Pro (SemiPro) Very thin and portable (Trusted Reviews) |
| Cons , different | Only Gateron low-profile (KS-33) switches fit; Kailh Choc switches do not The flat keycap profile takes an hour or two to adjust to, and a palm rest is not included Bluetooth polling is 125Hz; use 2.4GHz or USB-C for low latency VIA limits macros and static lighting scenes (Tom's Hardware) The stock keycaps are not backlit, so most of the light comes from the side bars Creative Bloq found the 75% layout a little cramped coming from full-size, and not the cheapest | Stabilizer rattle, especially on the space bar (SemiPro) Shorter battery life than the K3 Pro (SemiPro); rated up to 73 hours by Keychron Low-profile switch and keycap compatibility is limited (Gadgetoid) Trusted Reviews says it is niche Thin build means no wrist rest comfort (Trusted Reviews) |
| Research take , different | A thin, light, well-reviewed low-profile 75% that suits portability and multi-device work. Tom's Hardware gave it an Editor's Choice award as one of the best low-profile mechanical keyboards, and Creative Bloq called it a high-quality, attractive choice. The compromises are a flat keycap profile, Gateron-only low-profile switch compatibility and a price above basic rivals. If you want full-height switches, look elsewhere. | The thin travel board with a dongle. Stabilizers are a known weakness. |