About Product 1. Bluetooth: V 4.0 2. Resolution: 240X240 3. Battery capacity: 200MAH 4. Charging: magnet pogo pin 5. System requirements: iOS 8.0 or higher Android 4.4 or higher Features 1. Blood pressure test, heart rate test, pedometer, exercise distance, calories burned, sleep detection, raised hand, bright screen, sedentary reminder, find mobile phone, multi-mode alarm reminder, running mode, female cycle reminder, message reminder Language 1. Bracelet system language: Chinese, English 2. APP support language: Chinese, Chinese Traditional, English, Japanese, Korean, German, Russian, Spanish, Italian, French, Vietnamese, Portuguese