Body fat %, fat mass, and lean mass are then estimated from the body's shape (the circumferences the scan measures) together with the customer's sex, height, and weight. It's a geometric estimation model: it works from body shape and size, not from a lab method like DEXA.
Clothing & privacy
Loose or bulky clothing adds bulk the scanner reads as body, which inflates the measurements and throws off the body-composition estimate. For an accurate scan the customer needs to be in minimal, close-fitting clothing.
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