New Study Shows Smartwatch Stress Sensors Have No Idea What They're Doing
You might want to think twice before you put a lot of stock in the latest stress charts from your fitness wearable. A recent study from the Netherlands' Leiden University, published in the Journal of Psychopathology and Clinical Science, has found that when smartwatches and similar devices record readings on stress, fatigue or sleep, they're frequently getting it wrong. Researchers studied 800 young adults using the same Garmin Vivosmart 4 smartwatch model. They compared the data the smartwatch