Withings' Body Scan scale can measure the composition of different parts of your body
 

Over five years after the release of the Body Cardio (and one flirtation with Nokia later), French company Withings has released its far most technologically advanced connected scale yet, the Body Scan. The big change over the last model is the addition of a handle with four stainless steel electrodes that allows it to measure ECG, segmented body composition (fat/water in your arms, legs and torso) and even esoteric things like nerve activity. All of these features will also make it one of the most expensive scales yet when it arrives to market.

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