Smart Watch, 41mm Full Touchscreen Fitness Watch, Fitness Tracker with Heart Rate Monitor & SpO2, Sleep Tracker, Step Counter, IP68 Waterproof Pedometer Watch for Women Men
Product Description Blood Oxygen Tracking Before measuring, wear the watch two fingers below the wrist bone and a bit tighter than usual. 1. Tap to enter the blood oxygen level detection mode. 2. When measuring, keep your arm flush with your chest and the watch screen facing up. Keep your … Read more