Function: Pedometer， Calories， Sleep Monitoring， Silent Alarm， Sedentary Remind， Time/Date， Looking for Phone， Movement Date Memory， Individuality， Phone Calls Reminding， Lost to Remind， Call Reject， Remote ContralSpecificationsMovement type: DigitalDisplay: DigitalCase Material: PlasticCase Diameter : 27mmCase Diameter: Approx 2.2Case Thickness: Approx 1Band Material: SiliconeBand Length Approx (CM) : 25Band Width Approx (CM): 2.2Net Weight(kg) : 0.026