F4 Waterproof Heart Rate Oxygen Monitoring Watch Sport Fitness Tracker WatchSmart Bracelet (Green) CHEMAI

F4 Waterproof Heart Rate Oxygen Monitoring Watch Sport Fitness Tracker WatchSmart Bracelet

1. Can measure heart rate, blood pressure, blood oxygen, etc.

2. 30 meters waterproof function for swimming, surfing, bathing, etc.

3. Have a pedometer, mileage data, calories, sedentary reminds, sleep monitoring, and other functions.

4. By downloading the APP end, connecting the bluetooth, more support for Facebook, WhatsApp social software notification message content, etc.

Specification:

Bluetooth: BT 4.0Screen: 0.96 Inch OLEDBluetooth chip: Nordic processing chipSensor: Mc3413-p chipBattery: 130mAhWaterproof: 30MOutdoor functions: weather, altitude, air pressure, uv data synchronization. (to connect to mobile APP)Functional parameters: multi-mode function (basketball, swimming, badminton, cycling, running, mountaineering, etc.)

a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a