Features: Stylish Watch Faces: The watch comes with over 100 online watch faces. You can also customize the watch face with your favorite picture and define your own style. 100 Workout Modes: The watch supports 100 workout modes for even more choices. The upgraded high-precision motion sensor can accurately record your workout data. It will vibrate upon detecting a high heart rate with heart rate alerts. Scientific Sleep Monitoring: The watch automatically records sleep duration, sleep depth, REM, etc., helping you know more about what's happening during your sleep to better develop healthier sleep habits. IP68 Waterproof: You can wash your hands without taking your watch off. Just enjoy your workouts with its enhanced water resistance But do not wear it for swimming, showering, sauna, surfing and other high-speed water activities. 20-Day Battery Life: It can last for more than a week when fully charged. Basic usage mode can reach up to 20 days, so you don't have to be inconvenienced by frequent charging. Specifications: Product Name: Haylou Solar Lite Watch Display Size: 1.38" color large display Resolution: 240x240 BT Connection: BT V5.3 Battery Capacity: 240mAh Input Parameters: 5V 500mA Battery Life: 10 days (all-day heart rate monitoring) Dustproof and Waterproof Rating: IP68 Working Temperature: -10°C~60°C Synchronized Data Platform: Haylou Fun Device Requirements: Android 6.0 +/IOS 9.0+ Size: 46*46*9.9mm Color: Blue Package Information: Package Size: 15.8*7.5*2.8cm Package Weight: 125g Package List: 1 * Watch