Keychron K3 vs K3 V3QMK Firmware vs Entry-Level Value

The primary difference is that the K3 V3 introduces QMK and VIA support, allowing for deep key remapping, macros, and customization via the Keychron Launcher web app. It also features enhanced acoustic foams (IXPE, EPDM, latex) and a 1000 Hz polling rate, features the original K3 lacks.

The K3 V3 uses Keychron's newer Milk POM switches (Red, Brown, Banana) made with POM and POK materials, which are pre-lubed for a smooth feel and deeper sound. The original K3 uses Keychron low profile Optical switches (Red, Brown) and uses a MX-styled stem.

The original K3 lacks stated specifications for N-Key Rollover or a high polling rate, making it less suitable for competitive gaming. The Keychron K3 V3 is much more appropriate for gaming as it supports 1000 Hz polling in wired mode and 90 Hz in wireless mode, and has N-Key Rollover.

Yes, the vendor explicitly states that the K3 V3 supports QMK firmware and can be configured using the Keychron Launcher web app, which is compatible with Chrome, Opera, and Edge browsers. It does not explicitly mention VIA, but the Launcher web app acts as its configurator.

The K3 V3 is listed at 540g with dimensions 19 x 306 x 116 mm. The original K3's weight and dimensions are not provided, so while it may be lighter and smaller, the K3 V3 is still very compact and portable, making the travel comparison a tie.

Yes, the original Keychron K3 is offered in a hot-swappable version, but it is only compatible with its low-profile Keychron Optical switches. The K3 V3 also has a hot-swappable version, but it only works with Gateron/Keychron low-profile mechanical switches, not optical ones.

Both the Keychron K3 and K3 V3 feature a 1550mAh rechargeable li-polymer battery. The vendor for the K3 states up to 34 hours on the lowest brightness backlight setting for both the white and RGB versions. The K3 V3 battery life specs are not given, but turning the backlight off will extend battery life.

The original K3 comes with PBT or ABS keycaps depending on the version, and includes 17 extra keycaps for Mac and Windows. The K3 V3 comes with unique LSA profile (Low profile with spherical angle) Shine-through ABS keycaps and extra keycaps for both macOS and Windows.

The K3 V3 is more suitable due to its QMK firmware and Keychron Launcher support, which allows you to program complex macros and custom keymaps for your codes. Its three adjustable typing angles (2.5, 4.2, 6.5 degrees) also provide ergonomic benefits for long coding sessions.

Yes, both the Keychron K3 and K3 V3 are explicitly stated to be compatible with both macOS and Windows. They both come with extra keycaps for switching between the two operating systems and have a dedicated Mac multimedia key layout.

The original Keychron K3 has a stated typing angle of 6 degrees with two-level adjustable rubber feet. The K3 V3 is more versatile, offering three levels of adjustable typing angle at 2.5 degrees, 4.2 degrees, and 6.5 degrees.