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Wearables might not show the exact calories you burn


Key points from article :

"Wearables might pick up on calories burned on a treadmill, but less so while lifting weights."

"Calorie burn has to do with your intrinsic metabolism, which a wearable doesn't factor"

"Cannot distinguish between calories burned through yoga & calories burned through stress."

"Need to calibrate for each individual wearer" - Michael Snyder, Stanford University.

"Energy expenditure reported by wearables deviates from “gold standard” measures of energy expenditure".

"Wearable are acceptable if you need an idea of calorie burn over time".

"But do not rely on exact numbers reported." - Albert Titus, University at Buffalo.

"The most prevalent sensor to date is an accelerometer - a device which can detect motion."

"Strength training cannot be detected on accelerometers though - needs heart sensors".

"Research grade sensors are body temp, air temp, perspiration, galvanic response, barometric etc".

“Accuracy depends on the device. type of activity and the algorithms used.” - Edward Sazonov, U of Alabama.

Need to be personalised for every individual to obtain correct measurements

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Professor and Chair, Biomedical Engineering, University at Buffalo


Professor of Electrical and Computer Engineering, The University of Alabama


Professor of Genetics and Chair at Stanford University.


Private research university, one of the world's leading research and teaching institutions


Largest public university in the State University of New York system