Hight light:
100% brand new and high quality
Blood pressure, heart rate monitor
Pedometer, message reminder, distance
Calorie burned, call reminder, touch button
Vibrate clock, waterproof, sleep monitor, health statistic

Specification:
Chip: Nordic N51822
Bluetooth Version: 4.0
Sensor: 3D Acceleration Sensor
Photoelectric Sensor: Everlight
Display: 0.86" OLED
Battery Capacity: 90mAh
Machine Material: PC
Belt Material: Silicone
Waterproof Level: IP67
Normal Use: 3-5days
Stand By: 10days
System Requirement: Android 4.3 And Above, IOS8.0 And Above