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Health & Nutrition

The higher your body fat percentage, the less accurate your smartwatch is at measuring calories burned

Study participants rode a recumbent bike while wearing four smartwatches and breathing into a metabolic analyzer.

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Wellness & Fitness · September 26, 2026
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The higher your body fat percentage, the less accurate your smartwatch is at measuring calories burned
The higher your body fat percentage, the less accurate your smartwatch is at measuring calories burned

Study participants rode a recumbent bike while wearing four smartwatches and breathing into a metabolic analyzer. Credit: Taimy Alvarez/Florida International University Smartwatches have become an increasingly popular way for people to monitor their health and fitness.

About 100 million—nearly 4 in 10—U.S. adults own a smartwatch.

First reported by Medical Xpress.

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