Specification :Chipset: Goodix GR5515 and JieLi AC6963A.Heart rate sensor: HS3605.Screen: 1.81 inch, 240*286 pixel.Battery: Capacity 260 mAh, time 3~7 days.Waterproof level: IP67 Waterproof.APP: Da Fit.Suitable for mobile phones with Android 4.4 or higher, or iOS 9.0 or higher.Stay healthy :> Health: 24/7 Heart Rate monitor, Blood Pressure, Blood oxygen sensor (using red light to detect blood oxygen is more accurate), Sleep tracker, Breathe, Drink water reminder, Reminder to move, Women’s menstrual period reminder, Support health APP.> Life: Bluetooth Answer Call, Bluetooth Dial Call, Messages Reminder, Alarm clock, Weather, Music remote, Camera remote, Flashlight, Find phone, Dynamic watch face, watch face market (60+ 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 games and calculators.> Sports: All-Day Activity Tracking( Steps, calories, distance ), IP67 waterproof, 118 Exercise Modes, Stopwatch, Sports Data Report.With a battery life up to 3~7 days, keep the inspiration coming day and night.Language:Push information: Support all languagesSmartwatch languages: English, Portuguese, Japanese, Korean, German, French, Spanish, Arabic, Russian, Ukrainian, Italian, Chinese, and Traditional.COLMI P45 Smart WatchThe COLMI P45 is the latest fourth-generation smartwatch in our P series. It has a 1.81-inch large screen, supports 118 kinds of sports, and uses the latest generation of the blood oxygen sensor (using red light to detect blood oxygen is more accurate).It has a bigger battery. At the same time, these functions have been added: Bluetooth answering calls, Bluetooth dialing, and built-in 4 games and calculators.More functions are waiting for you to discover...