Equipped with the Bluetooth 4.0, useful to connect to compatible devices, integra four stainless steel electrodes on the upper surface to help you determine the various values of the body & is powered by four AAA batteries, not mini-stilo included in our case. We find, as mentioned, an LED display, well hidden in the upper surface, useful for displaying body weight & body measurement of different loading indicator values. The most interesting aspect of body composition Scale, as we said in the introduction, though is the software, or rather the body data that is able to collect & display on your smartphone over Bluetooth 4.0. Simply plug it into any device with Android or i OS 4.4 8 or later & use the application I Fit, available from Play Store & in Italian, in order to have access to lots of information about your body. But what are exactly the values you can measure? First of all it must be said that it is able to weigh people, only those between 5 & 150 kilograms, nothing else. That said, we see the values that is able to detect over the weight: BMI, body mass index, calculated by the ratio between the weight & the square of the height; body fat, the percentage of body fat is contained in the body; water, expressed as a percentage; Basal metabolism, the body's energy expenditure at rest; visceral fat, adipose tissue present between internal organs; muscle, muscle mass made from skeletal muscles & smooth containing water; bone mass, the amount of calcium, phosphorus & other elements that make up the bones; physical type, an index that determines the State of the body.