DFyou Bluetooth Heart Rate Wrist Sports Fitness Tracker Pedometer Bracelet Watch (DFit-Pink) Turn on the Wristband: Touch buttons are hidden in the time following. Long press the touch key 4 seconds to turn on the smart watch Heart Rate Monitor: Measure your heart rate any time via smart watch bracelet Pedometer: Smart watch display the real time step count, record your daily exercise Calories Display: Calculating and record the consumption of calorie via heart rate smart bracelet Function: Palming bright screen, date graph, sync wristband date, incoming calls, sedentary reminder