AI Life / Health / Smart Scales

Smart scales use bioelectrical impedance: a tiny current runs through your feet, and the scale estimates body fat from the resistance.

Why the numbers move

  • Water: hydration changes the reading a lot.
  • Time of day: morning and evening differ.
  • Feet: dry or damp feet change contact.

Get a useful trend

  1. Weigh at the same time each day, before eating.
  2. Stand barefoot on clean, dry pads.
  3. Look at weekly averages.

For context on body composition measures, see the NIH on body composition . Not medical advice. Talk to a doctor about your own health.

More guides on the Smart Scales hub .