Wireless mechanical keyboards have matured to the point where latency is nearly imperceptible, but choosing between Bluetooth and 2.4GHz matters. Bluetooth 5.1+ offers universal compatibility, multi-device pairing, and no dongle requirement, making it ideal for productivity setups with laptops and tablets. However, Bluetooth can suffer from interference in crowded environments and typically adds 5-15ms of latency. Dedicated 2.4GHz dongles provide near-wired performance with sub-2ms latency, essential for competitive gaming, but require a USB port and are limited to one device. Some keyboards like the Keychron Q1 Pro offer tri-mode connectivity (Bluetooth, 2.4GHz, and wired) for maximum flexibility.