One of the researchers said there was ‘basically zero’ correlation between self-reported stress scores and the data captured by the Garmin Vivosmart 4 wearable fitness tracker.
Wearables may work well for some things, like measuring your sleep and heart rate—but they may have serious limitations when it comes to measuring your stress levels.
A new study published in the Journal of Psychopathology and Clinical Science found that self-reported and wearable measures of stress did not overlap for most of the individuals they looked at, while associations were also fairly weak for tiredness. The study looked at 781 college students over a period of three months, who all wore a Garmin Vivosmart 4 watch. The participants provided updates four times a day on their self-reported emotional states, which were then measured against the data collected by the Garmin device.
