Crystal Clear Display: Experience vivid images and sharp details on the 1.43-inch AMOLED round display with a resolution of 466x466, bringing your watch face to life. Long-lasting Battery: Stay connected and powered for days with the 400mAh polymer lithium battery, providing a standby time of 10-15 days and a usage time of 5-7 days. Comprehensive Health Monitoring: Monitor your health with precision using the advanced sensors to track heart rate, blood pressure, blood oxygen levels, sleep patterns, and more, empowering you to take control of your well-being. Specifications: Color: White Size:  4.75x4.72x1.7 cm Material: Zinc alloy + Plastic + Silicone APP: FitCloudPro Main Core Model: Zhongke Bluetrum AB5681 Battery: polymer lithium battery, 400mAh Screen Size: 1.43 inch/round screen (Amoled screen) Screen resolution: 466*466 Charging method: magnetic charging Waterproof level: IP68 Charging time: 2.5-3 hours Standby time: 10-15 days Usage time: 5-7 days Function support: Bluetooth calling, data (steps, distance, calories), heart rate, blood pressure, blood oxygen, sleep, wrist lift and screen lighting, weather, sexual health, stopwatch, countdown and other massive watch faces, raise your hand to light up the screen, multi-sport mode (pedometer, mileage, calories, sleep monitoring, breathing training, sedentary reminder, drinking water reminder, etc.) can switch menu styles, time display (sync system time), health management (heart rate, blood pressure, blood oxygen), can search for bracelets, stopwatches, alarm clock, calculator, supports multiple languages, phonebook synchronization, screen off time adjustment, etc. Package includes: Smartwatch x 1 Charging cable x 1 Owner's Manual x 1