F4 Waterproof Heart Rate Oxygen Monitoring Watch Sport Fitness Tracker Smart WatchSmart Bracelet IOS/Androids(Black-Gray) (Grey) CHEMAI

Features: measurement of heart rate, blood pressure, oxygen and so on. 30 meters waterproof function, swimming, surfing, bathing and so on. have a pedometer, calorie mileage data, records, sedentary reminder, sleep monitoring function. download the mobile phone APP end, connect Bluetooth, more support for Facebook, WhatsApp and other social software to inform the content of information.Specification:Product specification: 47mm * 22mm * 12mm, thickness 11.3mm
Product weight: 180 grams
Product packaging: Boxed
Bluetooth: BT4.0 (support ios/Android)
Bluetooth chip: Nordic processing chip
Inductor: MC3413-p chip
Display: 0.96 inch OLED
Battery: 130 mAh
Waterproof: 30 meters depth
Outdoor function: weather, altitude, air pressure, ultraviolet data synchronization. (need to connect mobile phone APP use)
Functional parameters: Multi Sport mode function (basketball, swimming, badminton, riding, running, mountaineering, etc.)

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