Specification: Compatible System: Android 4.0、 iOS 7.0 Main features: Bluetooth phone、 motion recording、 sleep monitoring、 sedentary reminder、 goal setting、 calorie calculator、 voice assistant、 news alerts、 intelligent alarm clock、 remote control camera phone、 time display  Sensor support、 6-axis sensor (accelerometer and gyro sensors) Waterproof and dustproof: Support waterproof、 dustproof、 waterproof rating IP57   Package included: 1 X Huawei Smart Bracelet B3 1 X USB data cable 1 X Getting Started 1 X Safety information