Garmin v&iacute;voactive Black bundle (Includes Heart Rate Monitor) DISPLAY - Ultra-thin, high-resolution, sunlight-readable, color touchscreen display GPS-ENABLED - Built-in GPS-enabled running, biking and golfing plus swimming and activity tracking apps let you view your statseven when away from your phone SMART NOTIFICATIONS - Pairs with your smartphone to gently vibrate and display alerts for incoming calls, texts, email and calendar items plus notifications from social media and other apps BATTERY LIFE - Battery charge lasts through all your activities with up to 3 weeks in watch/activity tracking mode or up to 10 hours using GPS. SENSOR COMPATIBILITY - Get more out of Vivoactive - pairs with heart rate monitor chest strap for fitness activities (chest strap included in bundle package. NOTE - Heart rate monitor is not built in, you have to wear the chest strap to check heart rate. Refer to page 10 in the User Manual for troubleshooting steps.