I0I&I0I K22 - 1.28 Inches Heart Rate Monitor

Product features. 1.28-inch IPS full viewing Angle. Easy to change watchband, standard 22mm. Mass dial push, custom dial.v Bluetooth call/Bluetooth music (super clear sound quality), weather display. Heart rate test, blood pressure test, blood oxygen test, all day heart rate test. Time display, meter, calories, distance, heart rate, blood pressure, oxygen, Sleep time, on/off machine display, stopwatch, Multi-exercise mode. Sleep monitoring (sleep duration, sleep quality). Call notification, message reminder, multi-language push, alarm clock reminder, remote photo, sedentary reminder. The band supports multiple languages. 400 mah battery, extra long standby, and the screen is very bright outdoors. Synchronize data to APK/APP. Product parameters. The operating system must be Android 4.4 or later, IOS 8.0 or later, and support Bluetooth 5.0. Bluetooth version BLE 5.0. Main control chip Realtek8762C. The memory is 64MB. The screen resolution is 240 x 240. Horn 0916. Battery capacity is 400 mah. Standby time is about 30 days. The working time is about 7-15 days. Motor built in, vibration reminder