Naked uses infrared light to capture your 3D body model, which is visualized on the Naked app. To start the scan, you will step on the scale which detects your weight and then begins to rotate. Then you will get scanned. Sensors in the mirror will scan your body and calculate measurements. All the scanned data is then sent to the Naked app on your mobile, where you will be able to view the complete 3D model of your body.