The Ematic TrackBand (Black) monitors your activity and sleep whenever you where it. Sync with your smartphone and keep track of steps taken, distance by foot, and calories burned. The LCD display keeps you updated on your wrist and also shows the time and an SMS notification (Android only). The alarm clock feature silently wakes you in the morning. Wirelessly sync with iPhone 4s or newer, Samsung Galaxy devices, and more. Track your activity and sleep. Pedometer, Calories Burned, Distance by Foot. Monitor sleep quality. Receive SMS notifications (Android only). Watch and Silent Alarm. Water resistant.