Measuring solely our weight can lead to incorrect conclusions, as for example a lower value might be the result of loss of water. By analyzing the body mass as well, we get a more complete picture of our weight. The scale measures the weight and density of the body, then, based on the given parameters (height, age, sex) it calculates the body fat and hydration percentages. This is one of the most convenient ways of controlling our weight hence taking care of our health.
Pay attention to make the measurements under the same circumstances, from the time of day to what we are wearing.
As the price differential is relatively small, we recommend body fat and hydration scales over standard digital bathroom scales.