Compatible with UMIDIGI Uwatch 2S Band, LvBu Silicone Replacement Wristbands Sport Strap with Metal Buckle for Compatible with UMIDIGI Uwatch 2S Smartwatch (White+Pink) : Amazon.co.uk: Electronics & Photo
UMIDIGI Smart Watch Uwatch 3S, Fitness Tracker with Blood Oxygen Monitor and Heart Rate Monitor for Women Men. 5ATM Waterproof Activity Tracker with 3-Axis Electronic Compass for iPhone and Android: Amazon.co.uk: Electronics