Bally Total Fitness Wireless Activity Tracker with OLED Screen, Water Resistant Wirelessly Syncs Data to Smartphones and Portable Devices App Tracks Your Daily, Weekly, Monthly and Yearly Data Tracks Steps, Distance Traveled, Calories Burned, And Quality of Sleep Water Resistant Design, Long Lasting Rechargeable Battery, Switchable Display for Right and Left Arm Use,Bluetooth Enabled Vibrate/Alarm/Reminder