The Wireless Body Composition Smart Scale can connect wirelessly to mobile phones or tablets. The scale seamlessly uploads the measurements to the corresponding app after you download the app. The Wireless Body Composition Smart Scale is a body analyser that measures weight, and it uses bioelectrical impedance analysis (BIA) technogy to estimate body fat percentage and other body composition data. Body weight, Body water, Body fat, BMI, BMR (KCAL) are also measured.