Original Xiaomi Mi Band 2 Bluetooth 4.0 IP67 Waterproof Wristband Bracelet Smart Heart Rate Monitor Fitness Tracker

Specifications: 1. Updated heart rate wristband with 0.42" OLED display screen and Touch Button operating mode. 2. Mi Band 2 is equipped with a ADI photoelectric heart rate sensor, can real-time detect heart rate, let you adjust the motion state scientifically and consume fat efficiently. 3. Mi Band 2 manages your motion every moment and takes good care of you. 4. Beautiful OLED display and Touch Button operating mode give you more convenient control experience. Features: - 0.42 inch OLED display screen with touchpad - Support Heart rate monitor - Pedometer, Fitness Tracker, Sleep Tracker, Message Reminder, Call Reminder - Water resistant (IP67) - 20-day standby power - Sleep-cycle smart alarm - With a Dialog II 4.0 bluetooth chip, ADI sensor - Stylish band options (incl. wrap-around and leather) - Wrist Strap Length 235mm Adjustable Wrist Strap Length 155mm ~ 210mm App: Mi Fit Parameter: Battery capacity:70mAh Standby time:20 days Batteries Type:Lithium polymer Input Current:45 mA (TYP) 65 mA (MAX) Weight:7.0 g The main material:Plastic, aluminum Waterproof level:IP67 Total length:235 mm Adjustable Length:155-210 mm Material:Thermoplastic elastomers, aluminum Measuring method: photoelectric volume pulse wave plethysmography (PPG) Bluetooth chip: Dialog top Bluetooth chip (Bluetooth 4.0) Sensor: ADI military gravity sensor Package Include: 1x Mi band 2 1x Charging Cable 1x Operation Manual