Keychron B3 Pro Ultra-Slim

The B3 Pro is the Launcher-listed 75% in the ultra-slim B-Pro line. Keychron's page lists ABS keycaps, an 800 mAh battery rated at up to 300 hours, 1000Hz polling, tri-mode connectivity and remapping through Keychron Launcher. It weighs 410 g by Keychron's figure. Parka Blogs called it compact and good value, with quiet, responsive scissor keys and Windows and Mac legends, and noted it has no backlight, no right Ctrl key and that some multi-key shortcuts such as Ctrl+Alt+Shift combinations did not work. The reviewer also liked that Launcher runs in a browser, so it works on locked-down work PCs. It is a little lighter than the B1 Pro; both pages list Keychron Launcher, and only the B1 Pro's page also lists ZMK support.