The Bally Total Fitness BLT-5201 Wireless Activity Tracker is the best way to keep track of your fitness goals. Record your daily activity, and wirelessly sync the data from your tracker with your Bluetooth enabled iOS or Android device. You can track your steps taken, calories burned, distance traveled, and sleep quality. It also features a sedentary reminder, gently vibrating and urging you to get up and be active. This user friendly app displays all of your key fitness information with easy to read graphs and charts, and a history mode that shows your activity levels and achievements over time.