Very happy with my purchase, the scale is accurate, reliable (same result repeatedly) Certain people complain that after some it just prints just the weight. This is due to the fact that there was some discrepancy with the weight of your last measurement, the balance therefore wondered whether there is not another person and therefore does not analyze BMI and company. To reset everything, select a profile by pressing the SET button before getting on the scales and everything will be in order. 4 stars because the application does not allow the display of a chart other than weight over time + connection system has perfected the smartphone application.