Watch Faces APP: Watch face market. System Default: 9 Always-on Displays: 2 Customize Watch Faces: Support Main chipset: Realtek RTL8763EWE-VP Display Size: Large 2.0 Ultra HD Display, Supports Always-on Modes. Display Resolution: 410*502 pixels, 345 PPI, Up to 1000 nit Brightness Battery Capatcity: 260 mAh Battery Life: Battery Saver Modes: Up to 20 Days Typical usage modes: Up to 7 Days Waterproof level: IP68 Waterproof APP: FitCloudPro Suitable for mobile phones with Android 5.0 or higher, or iOS 9.0 or higher. Features Health Features: 24/7 Heart Rate monitor, Blood oxygen sensor, Sleep tracker, Breathe, Drink water reminder, Reminder to move, Adults Physiological cycle, Support health APP. Life Features: Bluetooth Answer Call, Bluetooth Dial Call, Messages Reminder, Alarm clock, Timer, Weather, Music remote, Camera remote, Find phone, Calculator, Dynamic watch face, watch face market (100+ watch faces), custom watch faces(you can set the picture you like as the watch face), Set the screen off time, Do not disturb mode. Built-in 4 User Interface. Sports Features: All-Day Activity Tracking( Steps, calories, distance ), IP68 waterproof, 106 Exercise Modes, Sports Data Report. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia