Just chiming in to say that body fat scales are indeed not very accurate. The ones you stand on send a current through your lower body only, so if you're like many women and store your extra in your bum and thighs, a body fat scale will tend to give you a reading that is too high. (I guess in the previous post, it also explains why that reading was too low.)

They are also very twitchy - you have to weigh in under specific conditions (properly hydrated, haven't eaten or exercised, etc.) and your best bet is to take the average of several readings.

Where they are kind of helpful is that they are consistenly inaccurate - so if it is giving you a reading that is 5% too high, it will always be 5% too high, but you can still tell if your reading is heading the right way over time.

View it as an interesting gadget, and NEVER let it ruin your day!