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Smartwatches offer little insight into stress levels, researchers find | Smartwatches | The Guardian

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Academic study suggests devices cannot differentiate between someone being overworked and being excited They are supposed to monitor you throughout the working day and help make sure that life is not getting on top of you. But a study has concluded that smartwatches cannot accurately measure your stress levels – and may think you are overworked when really you are just excited. Researchers found almost no relationship between the stress levels reported by the smartwatch and the levels that participants said they experienced. However, recorded fatigue levels had a very slight association with the smartwatch data, while sleep had a stronger correlation. Eiko Fried, an author of the study, said the correlation between the smartwatch and self-reported stress scores was “basically zero”. He added: “This is no surprise to us given that the watch measures heart rate and heart rate doesn’t have that much to do with the emotion you’re experiencing – it also goes up for sexual arousal or joyful

‘These are consumer devices, not medical devices’: a new study raises doubts about how well smartwatches understand fatigue and stress. Photograph: Ammentorp Photography/Alamy View image in fullscreen ‘These are consumer devices, not medical devices’: a new study raises doubts about how well smartwatches understand fatigue and stress. Photograph: Ammentorp Photography/Alamy Smartwatches This article is more than 11 months old Smartwatches offer little insight into stress levels, researchers find This article is more than 11 months old Academic study suggests devices cannot differentiate betwee

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