The smartwatch estimates of calories burned were least accurate in participants with body fat percentage above 35%
Each line shows the predicted difference between the estimated number of calories from each brand of smartwatches and the actual calories burned as measured by a metabolic analyzer, across body fat percentage. These predictions are based on the actual data collected in the study.
Four lines showing predicted difference between the estimated number of calories from each brand of smartwatches and the actual calories burned, across body fat percentage.
