Garmin's restyled Vivoactive is a big improvement | Engadget
Garmin heart rate guide: Features, devices and accuracy - Wareable
Garmin vívoactive® 3 Music | Smartwatch with GPS
What to do if your Garmin is not or has stopped recording heart rate
vívoactive 3 - Viewing the Heart Rate Widget
Setting Garmin Heart Rate Alerts. Hit Your Target Heart Rate Zone - YouTube
Garmin Fitness - Now you can set up abnormal heart rate alerts on compatible Garmin wearables. Learn more on our blog: http://ms.spr.ly/6186r49wm | Facebook