Garmin v&iacute;vofit Fitness Band - Purple Bundle (Includes Heart Rate Monitor) Pairs with heart rate monitor chest strap for fitness activities (chest strap included in bundle package). Move Bar - Motivates you to be active throughout the day by displaying a red move bar after one hour of inactivity. Additional segments light up for every 15 minutes of inactivity. Just walk for a couple of minutes to reset. Long battery life - Stays on for more than a year without having to change the battery. Easy-to-read display - View the time of day and your stats right on your wrist. Achieve your goals - Vivofit learns your activity level and assigns a personalized goal each morning. Count calories - Records calories burned throughout the day including base metabolic rate. Monitor your sleep - Set the sleep mode when you go to bed to track the quality of your rest.