Garmin Vivofit 4Garmin Vivofit 4 Fitness Tracker The Garmin Vivofit 4 is your ultimate companion for a healthier lifestyle, offering year long activity tracking without the need for constant recharging. With a battery life of over a year, this fitness tracker is designed to keep up with your active lifestyle, ensuring that you never miss a beat. Its always on, sunlight readable color display makes it easy to check your stats at a glance, whether you're indoors or