Syncs with your smart phone to display accurate body composition measurements. Works with Google Fit and Apple Health. Auto calibration; 4 high precision sensors on the bottom support up to 180kg weight with measurements in 100g increments; 4 sensitive electrodes on top of the scale enable accurate bioelectric impedance analysis (BIA); Sleek black design with a 6mm tempered glass platform for comfort and durability. CE and RoHS Certified.