Compare
Pick two boards from the directory and see how they differ.
Shaded rows are where they differ.
| Spec |  Keychron Keychron K3 Max $90–$110 “K3 Max, from Keychron's store” |  Keychron Keychron K9 Max $100–$110 “Slim 60% with 2.4 GHz and Milk POM low-profile switches” |
|---|---|---|
| Price , different | $90–$110 | $100–$110 |
| Size , different | 75% | 60% |
| Type | Pre-built | Pre-built |
| Connectivity | Wireless + Wired | Wireless + Wired |
| Released , different | 2023 | 2025 |
| Mounting | Integrated Plate | Integrated Plate |
| Case , different | ABS with aluminum frame | ABS frame |
| Colors , different | Black, White, White Gray | See the store |
| Weight , different | 525 g | 426 g |
| Dimensions , different | 306 x 116 mm | 287 x 97.5 mm |
| Typing angle | Not listed | Not listed |
| Front height | Not listed | Not listed |
| Switches | Low Profile | Low Profile |
| Profile | Low Profile | Low Profile |
| Keycaps | Low-profile double-shot PBT | Low-profile double-shot PBT |
| PCB | Hot-swap | Hot-swap |
| Plates | Not listed | Not listed |
| Battery | 1550 mAh, up to 73 hours | 1550 mAh, up to 73 hours |
| Compatible switches | Keychron low-profile | Keychron low-profile |
| Software | QMK, VIA, Keychron Launcher | QMK, VIA, Keychron Launcher |
| NKRO | Yes | Yes |
| RGB | Yes | Yes |
| Features , different | 75% layout, Tri-mode, Hot-swap, QMK/VIA, Low profile | 60% layout, Tri-mode, Hot-swap, QMK/VIA, Low profile |
| Good for , different | 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 | Travelers who want the smallest slim board with a dongle QMK/VIA users who like 60% layouts Tablet users who want a tiny keyboard |
| Skip if , different | Anyone who wants a rich, deep sound Gamers who want 8 kHz or Hall-effect features Buyers who want an all-day desk board | Anyone who needs arrow keys without layers (see the K7 Max) Gamers who want Hall-effect features Buyers who need independent review evidence |
| Pros , different | 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) | Very small and light (about 426 g, maker) 2.4 GHz plus Bluetooth plus wired Milk POM low-profile switches, hot-swappable QMK/VIA with PBT keycaps Sibling K7 Max had good build and foam (Android Police) |
| Cons , different | 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) | No dedicated review of the K9 Max was found 60% means no dedicated arrow or function keys ABS frame, not aluminum Only low-profile switches fit (Android Police, on the K7 Max) Battery rated at 73 hours |
| Research take , different | The thin travel board with a dongle. Stabilizers are a known weakness. | The tiny slim option with a dongle. Evidence is inferred from the K7 Max. |