Want to know whether all that sweating in the gym is paying off? The Withings Body + Black tells you everything you need to know about your body fat percentage and muscle mass. The Body + can also calculate your BMI and bone mass, and conduct a body analysis. Thanks to the memory function, you can compare results to previous readings. You can easily review them on your smartphone with the accompanying app. Create an account to gain insight into all your results. This way, you can see right away how far you are from your target weight. The 8 user profiles allow everyone in the family to keep track of their details.Warning: 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.