Specification: Core functions: heart rate monitor, caller ID (Android), SMS / QQ / E-mail / WeChat vibrate (Android), counting steps, distance, calorie consumption, time display, sleep monitoring, shake camera, anti-lost reminder, smart alarm clock, smart unlock, sports information sharing. Display: 0.69 inch OLED Battery capacity: 45mAh Standby time: 10 days Batteries Type: Lithium Polymer Input voltage: 5.0V Waterproof: IP65 Heart rate sensor: Optical heart rate sensor Adjustable length: 157-205mm Measuring method: photoelectric volume pulse wave plethysmography (PPG) Bluetooth chip: Dialog top Bluetooth chip (Bluetooth 4.0) Sensor: ADI military gravity sensor Length: 157-205 mm Main Part: 4.2g Wristband: TPU When use the band first, you need to connect the APP to calibrate the time 1. Please download APP: SCAN QRcode from the instruction book to download) 2. Please open mobile Bluetooth, and the bracelet closed within 5 cm. 3. Check device system version and Bluetooth version, Confirm clearly before purchasing. (They must meet two conditions: iOS 7.0+ and Bluetooth 4.0+; Android 4.4+ and Bluetooth 4.0+.) 4. Please note,If the wristbands display Chinese, please open app and wristbands for conduct sync,Can be switched to English. 5. If the wristbands are not synced,please contact us,we will help you to solve the problem as soon as possible. 6. For Android Smartphones, it can support all the function in the description; For iOS iPhone, it cannot support call reminder, message reminder Package Included: 1 x chip host 1 x wristband 1 x charger 1 x user manual
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