Meet the Watch Link USB: a smart gadget that lets you connect your Apple Watch to smart exercise devices such as treadmills, bikes, and rowers. It is compatible with Bluetooth and ANT+ devices. The Watch Link USB works with Apple Watch Series 3 or later. It works with apps such as Zwift, Strava, and Echelon.
Watch Link USB is compatible with NordicTrack, Echelon, Peloton, Concept2 and other popular fitness brands. You can connect one of these to multiple exercise machines.