Weighing in

The £347 ($499, €440) device comprises a free-standing mirror with a built-in 3D scanner and a weighing scale that rotates to accurately capture the dimensions of the user’s body. The two components combine to record changes in the user’s shape, weight, body fat and muscle mass over time. A smartphone app visualises the data to demonstrate how the user’s body has changed in response to physiological factors such as their diet and the amount of exercise they undertake.

‘Most services are interested in what you are doing to your body. Apple Watches and Fitbits are measuring activity, but not what is happening to your body,’ Farhad Farahbakhshian, CEO of Naked Labs, told Fast Company.

The weighing method is similar to that used in hydrostatic body composition analysis, which measures body fat percentage by the amount of water a user displaces when lowered into a special weighing tank. The system is reportedly accurate within 2.5%, a significantly smaller margin of error than most existing commercial weighing scales.