Keep tabs on your activity levels all day, every day with the black vivofit 4 from Garmin. This wearable fitness tracker counts steps, distance traveled, calories burned, and even provides a personalized daily step goal based on your progress. In addition to activity tracking, the vivofit 4 provides feedback on your sleeping habits, so you can monitor how much rest you're getting. Your data is displayed on the vivofit 4's always-on sunlight readable color display, so you'll always know how you're doing.