Question: how does garmin vivoactive 3 measure stress?
Answer: Your device analyzes your heart rate variability while you are inactive to determine your overall stress. ... The stress level range is from 0 to 100, where 0 to 25 is a resting state, 26 to 50 is low stress, 51 to 75 is medium stress, and 76 to 100 is a high stress state.