Quartz Smart Wrist Watch Bluetooth Fitness Tracker with Heart Rate Monitor Blood pressure Blood oxygen

Smart screen: 0.49 inch
Bluetooth 4.0: Support
Function: Time display, Step counting, Calorie, Distance, Raise your hand to light up the screen, Sleep monitoring, call reminder, Message reminder, Sedentary reminder, Alarm clock reminder, Do not disturb mode, Shake it and take a picture, Find Bracelet, Whole point measurement, Wechat campaign, heart rate, blood pressure, Blood oxyge