The bump on the heart rate sensor is not an issue. The battery life with nightly Pulse-Ox is around 2.5-3 days, and without that can last up to 5-6 days depending on GPS activity. Music significantly kills battery life, though. To set the alert thrshold on the VA3- Long press on the HR widget/ tap on heart rate settings/ tap on abnormal heart rate (words not switch) & then set alert threshold. FrathosCAN over 4 years ago in reply to rawveeda +3 The number that Garmin reports, in my experience, is an estimate made measuring the speed of your run (or runs) and looking at heart rate during that time. Doing a few fast runs, close to as fast as you can, on a flat surface, over times at least 30 min and up to 1h 10min = higher measured VO2 max. Garmin Vivoactive 3: GPS and heart rate. Since the Garmin Vivoactive HR we've seen optical heart rate make steady improvements; it's still not perfect, but gradually it's getting better at keeping Garmin Vivoactive 3; Garmin Vivoactive 4; Night Gleam. Wareable. current outdoor temperature, battery status, and current heart rate up into quarters. . When I complete an activity on my Vivoactive 3, it automatically syncs to Strava, May well be GCM doing that for me. Thing is, I don’t get much data synced. I get an activity and time, I get only average heart rate and max heart rate, but that’s it. I don’t get the heart rate graph for instance, I don’t get calories burned etc.

heart rate on garmin vivoactive 3