D18S 1.44in Smart Watch Sleep Monitoring Fitness-Tracker Waterproof Bracelet Features: 1.44 inch TFT color screen with high sensitivity and single to-uch control, which can realize various operations. Support call and message notification, no important information will be missed. IP65 waterproof for daily life, multi-sport mode, suitable for outdoor sports. Automatically record daily movement step and calorie data. Support heart rate, blood pressure, blood oxygen monitoring, sleep monitoring function, when you fall asleep, it will automatically monitor the quality of sleep and record data on the APP. USB plug-in charging design, remove the wrist strap to plug in and charge, easy and convenient. Specification: Model: D18S Type: Smart Watch Material: ABS&Rubber Screen Size: 1.44inch TFT Resolution Ratio: 240 x 240 BT Version: BT 4.0 Compatible OS: Android 5.0 and above/IOS9.0 and above Operating mode: to-uch button Battery Capacity: 90mAh Functions: Alarm setting, Sedentary reminder, Heart rate monitor, Pedometer, Sleep monitor, Call/message reminder, Search for phone, Hand raise to light up, Remote camera and more. Alert type: Vibration Package List: 1xSmart Watch.