Analog bathroom scales (which have a mechanical needle to indicate weight) are slowly disappearing and are being replaced by digital scales. Digital scales promise more features and better accuracy, but comparison reviews show that digital accuracy isn't always great. Body-fat monitors are digital scales which measure weight and also attempt to compute the percentage of fat on your body.

Reviewers say the following about shopping for a bathroom scale:

  • Consistency is key. If you're trying out a scale in a store, it should give you the same reading each time you step on and off.
  • Look for an easily readable display. The larger the window and dial on analog scales the better. Some electronic scales have extra-large numbers or a backlit LCD, which makes reading much clearer. A few scales now have speech functions that announce the weight.
  • Don't count on accurate body-fat measurements. Experts say that body-fat scales don't use a very accurate method of determining percentage of body fat. However, most scales can measure consistently, so you'll be able to measure progress.
  • For family use, look for scales with a memory for two, four or more people. These scales can remember your last measurements. Some fancier models can analyze the data.
  • Digital scales need batteries, usually four AA or a lithium battery. Lithium batteries last longer.
  • Pacemaker users and pregnant women should not use body-fat scales. The small electrical pulse used by these scales could interfere with pacemakers, and may be harmful to pregnant women.
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