Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Useless...DO NOT WASTE YOUR MONEY!!!!!!!

I only gave it one star because it won't let me give it ZERO!! This only calculates your body fat based on height and weight, not your impedance!! I got on the scale and it gave me a body fat reading. I went back on it 5 times in row...exact same measurement each time. Next, I performed a little experiment. I picked up a twenty pound weight, now this should have brought my body fat % down since a chunk of steel has no fat. But, NO! It just saif I had even more body fat now because I weighed more, not because I was any fatter! This is a pure rip off! It may be okay as a pure scale but do not buy it give you a proper BF%. You can go to any # of websites and input height and weight and it'll give you the same numbers for free!!