Garmin v&iacute;vosmart HR Activity Tracker Regular Fit - Midnight Blue (Deep Blue) WRIST-BASED HEART RATE - Tracks heart rate to provide more accurate calories burned information. SMART NOTIFICATIONS - Displays any notification from your mobile device; calls, texts, social, music, games, etc. with vibration alerts so you don't miss a beat. INTENSITY MINUTES - Monitor your progress against aerobic activity goals recommended by health organizations such as the American Heart Association, U.S. Centers for Disease Control and Prevention and the World Health Organization. ACTIVITY TRACKING - Displays steps, calories, distance, heart rate, floors climbed, intensity minutes and time of day. NOTE: The image on the packaging shows a brighter blue then the actual unit's color. The actual unit color is a very dark blue. Please refer the User Manual before use.