Keychron K17 Max vs K4 MaxLow-Profile vs Standard Height Choice

The K17 Max is an ultra-slim, low-profile keyboard with a height of 27mm and a weight of 750g. The K4 Max is a standard-height keyboard with a taller profile and a significantly heavier build at 1290g. This is the most immediate tactile and visual difference.

Based on the listed specifications, the K4 Max has a larger 4000mAh battery compared to the K17 Max's 2000mAh battery. This suggests the K4 Max will likely last longer between charges, though actual battery life depends on usage patterns like backlight brightness and connectivity mode.

You can only use Cherry MX switches on the hot-swappable version of the K4 Max, as its product description states compatibility with almost all 3-pin and 5-pin MX-style switches. The K17 Max's hot-swap version is specifically listed as compatible only with Gateron or Keychron low-profile mechanical switches.

The Keychron K17 Max is more portable. It weighs nearly half as much (750g vs 1290g) and has a much slimmer, low-profile design. This makes it easier to carry in a bag and takes up less space on a desk, making it the better choice for frequent travelers.

Yes, both the Keychron K17 Max and K4 Max list QMK support and VIA support in their specifications. This means you can fully reprogram keys, layers, and macros using either the open-source QMK firmware or the VIA/Keychron Launcher graphical interface.

The K17 Max comes with low-profile double-shot PBT keycaps in an LSA (Low-profile Spherical-Angle) profile. The K4 Max comes with OSA profile (OEM spherical-angle) double-shot PBT keycaps. Both are PBT plastic for durability, but they have different shapes and heights.

Both keyboards feature sound-dampening foam (IXPE in the K17 Max; IXPE, PET, and EPDM in the K4 Max) to reduce noise. The K17 Max's low-profile switches may subjectively be quieter due to shorter travel. However, the choice of switch type (linear, tactile, clicky) will have a greater impact on sound levels for either board.

The K17 Max has north-facing LEDs, while the K4 Max has south-facing LEDs. South-facing LEDs, as on the K4 Max, are angled toward the user and prevent interference with the legends on Cherry-profile keycaps, a common issue with north-facing designs.

The product descriptions do not specify if the stabilizers are pre-lubricated. The K4 Max mentions "upgraded stabilizers" with reinforced sidewalls and screw-in mounting. The K17 Max mentions "redesigned stabilizers" for less wobble. For either, modders often choose to lube stabilizers themselves for a smoother feel.

Yes, both keyboards support Bluetooth, 2.4 GHz wireless, and wired USB-C connections. The manufacturer's description for both states the Bluetooth 5.1 connection can pair with up to three devices, allowing for easy switching between a computer, phone, and tablet.

Both keyboards are listed with Mac/Win support and include keycaps for both operating systems. The K17 Max description notes it offers the same multimedia and function key functions as Apple keyboards for Mac users. The K4 Max description states it is built with Mac users' experience in mind and can save separate layouts for Mac and Windows.

Yes, for both models. The vendor pages list options for both fully assembled (non-hot-swappable) and hot-swappable versions. The K17 Max page specifies the hot-swap feature is for the "RGB Backlight (Hot-Swappable)" version only, and the K4 Max page offers a "Fully Assembled" and a "Fully Assembled (Hot-Swappable)" choice.