The main function of fk88 smart watch. Bluetooth push button: SMS, WeChat, QQ news and other customer information and other communications in time to remind Heart rate detection: heart rate monitoring, monitor your heartbeat throughout the day Pedometer: exercise pedometer, calorie consumption, exercise mileage record  Sedentary reminder: time to get up and exercise and change unhealthy lifestyle  Sleep monitoring: record and analyze your sleep status objectively and quantitatively Mobile phone function: anti-lost reminder.Two-way search  By Bluetooth music playback: play on the watch Call reminder: Support. Bluetooth version and function: 3.0, 4.0 supports Bluetooth calling . Battery specifications and capacity: 320MAH high capacity polymer . vibration motor: support . Other functions: alarm clock, calendar, stopwatch, calculator