I also have one of these scales. The one I bought is more money than the base model. It has memory and reads fat in 0.1%. I wouldn't recommend buying this one. The saleman talked me into it. I think you would be better of getting one of the cheaper ones. I find the reading for fat to vary all day depending on how much water or food I had. In the morning I am at the fattest (according to the scale) After dinner I am the skinnest. My one moves about 2% over the course of the day.

Dave