D19 Wristband Smart watch, 1.3-inch Color Screen, Single-touch-screen Operation Description: The 1.3-inch TFT color screen has high sensitivity and single-touch control, allowing you to perform different operations. Support phone and message notifications, and will not ignore any important information. IP65 daily waterproof, multi-sports mode, suitable for outdoor sports. Automatically record daily exercise steps and calorie data. Support heart rate, blood pressure, blood oxygen monitoring and sleep monitoring functions. When you fall asleep, the quality of sleep will be automatically monitored and the data will be recorded on the app. USB plug-in charging design, you can charge after removing the wrist strap, which is easy and convenient. Specification: Waterproof level: IP67 waterproof Compatible system: Android 5.0, IOS9.0 Main features: heart rate and blood pressure, step count, calories, sleep monitoring, alarm clock, information reminder, display time, date, battery, exercise, sedentary reminder, smart anti-lost, multiple sports modes (running, walking) Cell phone Bracelet support languages: Chinese, English Screen size: 1.3inch color screen Bluetooth: 4.0BLE (low power consumption) Battery type: polymer lithium battery Battery capacity: 90mAh Life time: 7 days standby Contain: 1pc watch host 2pc strap