1.3 inch TFT color screen with high sensitivity and single-touch control, which can realize various operations. USB plug-in charging design, remove the wrist strap can be directly charged, easy and convenient. IP67 waterproof for daily life, continuously record your daily walking steps, distance and calorie burned. Suitable for outdoor sports, help you to develop a scientific fitness plan. Support call and message notification, no important information will be missed. With professional heart rate sensor, monitor your heart rate in 24 hours, when you fall asleep, it will automatically monitor sleep quality and record data on APP. Specification: Model: D13 Type: Smart Watch BT Version: BT 4.0 Compatible OS: Android 5.0 and above/IOS9.0 and above Operating mode: Touch button Battery Capacity: 150mAh Functions: Alarm setting, Sedentary reminder, Heart rate monitor, Pedometer, Sleep Monitor, Call/message reminder, Remote camera and more. APP Name: Yoho Sports Alert type: Vibration