Garmin vivofit 4 Health and Fitness Activity Tracker, Black, LargeTracks steps, distance and calories burned, monitors sleep and provides a personalised daily step goal, smartphone compatibility: iPhone and Android Always on colour display is easy to read and offers customisation options, including colour themes, watch faces and text phrases Move IQ feature automatically detects a variety of activities and can start an activity timer for runs and walks automatically Includes convenient tools that let you set alarms,