Brand new Garmin Vivofit 4 activity tracker in original box with owner's manual; only opened to take photos. Black and a size Large. Will fit a wrist circumference between 148-215 mm. This tracker monitors your steps, distance, calories burned, sleep, and your inactivity. The water-resistant design is safe to wear while showering and swimming. Download and sync to the Garmin Connect app to save, plan, and share your activities, or to take on social challenges. It has a customizable color display and 1+ year battery life.