Keychron has introduced the K4 Ultra and K10 Ultra wireless mechanical keyboards, both featuring identical internal components and a 4,000 mAh battery. The K10 Ultra offers a full-size layout with a macro row, while the K4 Ultra adopts a more compact 96% design.

Both models support 2.4 GHz and Bluetooth 5.2 connectivity, with an 8 kHz polling rate available for wired and 2.4 GHz connections. Keychron claims up to 600 hours of battery life with backlighting off. The keyboards utilize tray-mounted ABS cases, steel switch plates, and sound-dampening materials, topped with double-shot PBT keycaps in Keychron's OSA profile.

Consumers can choose from three Keychron switch options: Apex Red (linear), Brown (tactile), and Banana (tactile). The K4 Ultra and K10 Ultra are priced at $114.99 and are available on Keychron's online store and Amazon. These additions provide more layout variety for users prioritizing wireless performance and customizability.