Keychron Q1 Ultra vs Q3 Ultra75% vs TKL Layout Comparison

The main difference is the layout size. The Q1 Ultra is a 75% keyboard, which integrates the function row into a compact layout. The Q3 Ultra is an 80% TKL (Tenkeyless) keyboard, which retains the function row and arrow keys as dedicated keys in a slightly larger form factor.

Yes. Both the Q1 Ultra and Q3 Ultra support 2.4 GHz wireless, Bluetooth 5.3, and wired USB-C connections. According to Keychron, they offer an 8000 Hz polling rate in both the 2.4 GHz and wired modes.

Both keyboards feature a 4000mAh rechargeable battery. Keychron states they can last up to 660 hours of use with the backlighting turned off, or up to 200 hours with RGB lighting at its lowest brightness.

Yes, both models are hot-swappable. They support both 3-pin and 5-pin MX-style mechanical switches, allowing you to change switches without soldering.

Both keyboards use ZMK open-source firmware. Configuration is done through the web-based Keychron Launcher, which allows for key remapping, macro creation, and RGB lighting customization.

Both the Q1 Ultra and Q3 Ultra come with pre-lubed Keychron Silk POM switches. According to the listings, options include linear Red, tactile Brown, and tactile Banana variants.

Yes. Both keyboards are compatible with macOS, Windows, and Linux. They include extra keycaps for both Mac and Windows layouts and have a physical toggle to switch between operating systems.

Keychron describes both models as having a double-gasket mount design with multiple layers of sound-dampening foam, including sound absorbing foam, IXPE foam, a PET film, a latex bottom pad, and bottom case acoustic foam. This is intended to provide a cushioned, quiet typing experience.

Both keyboards come equipped with KSA (Keychron Spherical-Angle) profile double-shot PBT keycaps. These are dye-sublimated, oil-resistant keycaps designed for durability.

The Keychron Q1 Ultra is better for a small desk due to its more compact 75% layout. It measures 328 x 145 mm, which is notably shorter in length than the Q3 Ultra's 365 mm, freeing up valuable desk space.

According to Keychron's description for both models, the bottom case acoustic pad can be removed by users seeking more typing flexibility from the gasket mount. Other foams like the IXPE and PET film are part of the standard assembly.