The Timex Ironman Move X20 activity tracker is changing how we proactively monitor and improve our fitness. The Move X20 uses a built-in 3D accelerometer to track your steps, distance, speed, and sleep. With additional information like your height and weight, the Move X20 pairs with the companion smartphone app to provide you with your BMI and calories burned. The Move X20 also connects to your smartphone via Bluetooth to provide you with call and text alerts. The Move X20 retails for $160.00.