Besides weight, the scales in the list commonly report body fat, muscle mass, hydration/body water, bone mass (or bone density), BMI, and visceral fat. Some models also show heart rate and simple weight-trend/readout summaries.
Most of the scales estimate body water and other composition metrics using bioelectrical impedance analysis (BIA) or bio-impedance technology, which is the method referenced in the product descriptions.
Common display types include large backlit or LED screens, white backlit displays, color backlit LCDs, and hidden LED readouts. These variations are used so weight and composition metrics are easy to read at a glance.
Many smart scales offer wireless syncing via Bluetooth and/or Wi‑Fi to companion smartphone apps, allowing tracking of measurements and trend charts in the app.
Some models add features such as standing heart rate, total steps, basal metabolic rate (BMR), weight-change tracking, and a visceral fat index. A few product descriptions also mention non-standard extras like localized weather or pollution info on the display.
