HD display with high sensitive touch key-press.Scratch resistant and High visibility.</br>Calculate heart rate accurately by PPG sensor(photoelectric volume pulse wave tracing).The measurement range is 30-210bpm.</br>6 Interfaces of the activity tracker:Clock??Heart reat??Pedometer??Calorie??Sleep monitor and Device management interface.</br>There are 7 types of motion type to choose.The detail report will displayed on your smartphone page.</br>Vibration reminder??you won't miss your call and messages.Custom alert will remind your daily activity schedules.</br></br>Product Description</br></br><b>A sport heart rate bracelet:</b><br> Calculate heart rate accurately by PPG (photoelectric volume pulse wave tracing) sensor. <br> Detect heart rate continuously?? insure accurate data even in sports. <br> Close to medical equipment standard?? data consistency up to 96%.<br> Need 8 seconds to collect signal?? the measurement range is 30-210bpm. <br><br> <b>Your sports and fitness tracker:</b><br> Pedometer: The bluetooth wearable activity tracker will record your steps. <br> Distance