The Skechers SK20 Go Walk Activity Tracker/Sleep Monitor (Black) keeps track of your steps, distance, calories and monitors your sleep. The Skechers SK20 Go Walk Smart Activity tracker is the first activity band to distinguish between walking and running. You can set your daily target goal and red, yellow, green LEDs will light up as you progress towards your daily goal. The Skechers SK20 Go Walk Activity Tracker motivates you to move more. Connect to your IOS devices and measures daily, weekly and monthly progress.