These are the best smart scales to buy in every category, from Withings Body and Garmin Index S2 to Renpho Elis 1.

Smart scales track changes in your muscle mass, body fat percentage and other health metrics — but how do they work?

The Withings Body Comp Smart Scale is on sale for $169.95, an over 25% markdown from its usual $229.95 for Prime Day. This ...

Segmental body composition technology A cornerstone of the Body Scan smart scales is the multi-frequency Bioelectrical Impedance Analysis (BIA) technology.

Smart scales use a method called bioelectrical impedance analysis (BIA), typically through a foot-to-foot impedance meter, to measure things like body fat and muscle mass.

The Withings Body smart scale is an intuitive and effective appliance that sends basic info via Wi-Fi.

Best for Comprehensive Body Composition Analysis: RENPHO Smart Scale Key specs: 400-pound weight limit, 0.2-pound readout accuracy, glass material, Bluetooth connectivity, compatibility with ...

The Renpho MorphoScan is a smart scale with segmental body composition, meaning it can analyze the fat and muscle percentage of your limbs and torso. It’s not a super budget scale that will only ...

The Withings Body Scan is a smart scale with an attached handheld scanner that delivers advanced health and body composition measurements including ECG readings, but its high price is tough to ...

Dietitians and our editors tested the most popular bathroom scales on the market. Here's what we found were the best smart bathroom scales for tracking stats.

Smart scales track changes in your muscle mass, body fat percentage and other health metrics — but how do they work?