Don't miss out on the newest fitness craze, Fitbit. The Fitbit Flex wireless wristband can be worn 24 hours per day to track your steps, distance, calories burned, active minutes and sleep. You can sync the Fitbit Flex with iPhone 4S and later, iPad 3 and later, most android devices, Windows XP and later, and Mac OS 10.6 and later to track your stats and progress and set goals. Large and small wristbands are included to ensure a comfortable fit.