Currently, supported devices are limited to Apple Watch and Galaxy Watch 5,6. Other iOS devices may also connect, but normal operation cannot be guaranteed.
WAVE Radar connects to WAVE Putt or Smart Watch via Bluetooth, and only one of WAVE Putt or Smart Watch can be connected at a time. WAVE Radar is set up to connect to WAVE Putt when shipped, and to use a Smart Watch, you need to connect the WAVE Skills app and change the used accessory to Smart Watch in the settings or device connection.