Download the "RDFit" APP on your phone, enable Bluetooth, and pair with the watch; 2. Warranty Period ：The product enjoys a 12-month warranty.
Waterproof GT4 PRO Smart Watch NFC GPS Tracker Bluetooth Call Men Sport Watches
Waterproof GT4 PRO Smart Watch NFC GPS Trackr Bluetooth Call Men Sport Watches
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GT4 Pro Smart Watch Fitness Tracker Bluetooth Heart Rate Monitor Black
GT4 PRO Waterproof Smart Watch NFC GPS Tracker Bluetooth Call Men Sport Watches
