Features: 0.96 LCD colorful screen, touch to operate. Comfortable rubber strap with shock-proof case. Advanced NRF51822 chip, BT4.0 data transmission technology. IP65 water-proof for: hand washing, rain etc. Multi-Functions: Heart Rate Monitor, Blood Pressure, SPO2 Monitor, Pedometer,Calorie, Sleep Monitor, Alarm, Call/Message Remind, Remote Control Camera, App Notifications, OTA upgrade etc. Compatible with IOS 9.0 Android 4.4 or above devices. 90mAh rechargeable battery, 3-7 days standby time. Language Support: Firmware:English, Chinese, Korean, Spanish, Japanese, French, German, Russian, Arabic. App: English, English, German, Spanish, Japanese, French, Italian, Russian, Arabic, Portuguese, Chinese Note: Before usage, please download app by scanning the QR code(in User Manual) to install the app.