The Beurer BF 700 knows almost everything about you. Your body fat percentage, body water, bone mass, and muscle mass for example, aren't a secret for this scale. If you connect it to the Health Manager app on your smartphone via Bluetooth, you can also review all your readings at a later time. Was the reading not quite as good as you'd hoped? Don't panic, that must have been because of last week's birthday party.Note: using a scale with body analysis may lead to health risks for certain people such as pregnant women, children, or people that use medical electronic devices. Before use, check the manual for the safety measures and to see whether the scale is suitable for you.