REQUIRES MyKronoz ZeFit TO USE THIS APP Wear ZeFit and Get the App to keep track of yourself 24/7ZeFit is a connected watchband that tells time, tracks steps, distance traveled, calories burned and sleep quality.-TRACK YOUR ACTIVITY & SLEEP-WIRELESSLY SYNC YOUR DATA-SET DAILY GOALS AND REMINDERS-VIEW YOUR PERFORMANCE LEVEL IN REAL-TIME-ANALYZE YOUR PROGRESS*ZeFit will help you stay motivated and active throughout the day*Learn more about ZeFit at www.mykronoz.comSystem requirements: iPhone 4 S, iPhone 5, 5c, 5s, 6, 6 PlusiPad Mini, iPad 3, iPad 4, iPad Air, iPod Touch 5th generation