Instruct: Classify Amazon reviews into positive or negative sentiment
Query: DOSE NOT WORK WASTE OF MONEY

Waste of money, dose not work. I have a six pack and it say I'm 23% bodyfat, so i did a skin fold caliper and it say 10% bodyfat, this thing is wrong, I tired it three different times and got three different readings 15% 23% and 40%, i'm a bodybuilder and a personal trainer, I would not trust this thing with any of my clients, don't waste your money, and go get your self a skin fold caliper there like 2.99.