【Large HD Color Screen & IP68 Waterproof】The 1.85-inch high-definition full touch screen and advanced sensors make the operation smoother, providing you with a better visual and user experience. IP68 waterproof standard allows you to enjoy water sports without fear. D1 smartwatch is designed with Bluetooth 5.2, which enable it runs faster and the data transmission is more stable. 【Health Tracker】D1 fitness watch features over 100 sports modes, which can meet the need of most sports enthusiasts. It can automatically track your daily steps, distance, and calories. 24-hour heart rate and blood oxygen monitoring to help you better understand your physical condition. You can also obtain your sleep data to help you analyze your sleep quality and develop a better sleep habit and a healthier lifestyle. 【Wide Compatibility & Personalized Watch Faces】D1 smart watch works as an extension of your phone so you can do more while on the go, bringing more convenience to your life. It works seamlessly with iPhone and Android phones. This smart watch can offer over 100 personalized watch faces to choose from, and you can also customize your watch face with your favorite photos to highlight your unique personality. 【Make/Answer Calls & Smart Notifications】After connecting D1 watch with your phone via Bluetooth, you can easily make and answer calls directly on the watch. When there is an incoming text or social media messages, it will also vibrate to remind you to check out. Never miss anything important even on the go. 【More Useful Functions】You can enjoy more practical features, such as stopwatch, timer, calculator, alarm clocks, voice assistant, music control, female cycle tracking, etc., it can be a smart assistant and an essential companion for a healthy life. D1