Keychron K15 Max vs K3 Max SEAlice vs Compact 75%

The Keychron K15 Max has a better ergonomic layout due to its Alice design, which positions the hands at a more natural angle to reduce wrist strain. The K3 Max SE uses a standard 75% compact layout without ergonomic staggering.

Yes, both keyboards offer hot-swappable switch sockets, allowing you to change switches without soldering. However, the K15 Max is only compatible with Gateron/Keychron low-profile mechanical switches, while the K3 Max SE uses Keychron Milk POM switches.

The Keychron K3 Max SE is better for travel because it is lighter at 566g and has smaller dimensions of 20 x 319 x 126 mm. The K15 Max is heavier at 700g and larger at 29 x 370 x 143 mm, making it less portable.

Yes, both the Keychron K15 Max and K3 Max SE support QMK firmware and the VIA software for key remapping, macros, and lighting control. They also work with the Keychron Launcher web app for easy customization via the browser.

The Keychron K15 Max has a 2000mAh battery, while the K3 Max SE has a smaller 1550mAh battery. The vendor states the K3 Max SE can achieve up to 120 hours of wireless working time, but no comparable claim is provided for the K15 Max.

Both keyboards offer a 1000 Hz polling rate over 2.4 GHz and wired connections, which is excellent for competitive gaming. On Bluetooth, the K15 Max polls at 90 Hz and the K3 Max SE at 125 Hz, but both are less ideal for gaming on Bluetooth.

Both keyboards come with low-profile double-shot PBT keycaps in an LSA (low profile spherical-angled) profile. The vendor notes they are oil-resistant and non-shine-through, and the K15 Max also offers a white backlight version.

Only the Keychron K15 Max has dedicated macro keys, described as M keys in user reviews, which can be programmed via QMK/VIA. The K3 Max SE does not have dedicated macro keys and relies on remapping existing keys for shortcuts.

The Keychron K15 Max is heavier at 700g compared to the K3 Max SE at 566g. The additional weight of the K15 Max, combined with its aluminum frame, provides more desk stability during typing, while the lighter K3 Max SE is more portable but may feel less solid.

Yes, both the K15 Max and K3 Max SE support macOS and Windows, as stated in the vendor descriptions. They include Mac-specific keycaps and offer layout switching, and the K3 Max SE is also noted to be compatible with Linux.

The K15 Max uses IXPE acoustic foam and resilient latex foam for sound dampening. The K3 Max SE uses EPDM acoustic foam and bottom case acoustic foam to reduce noise and vibration.