Mine hasn't helped me to lose a single pound. I wear it everyday. I enter every morsel of food I consume. Believe me when I tell you that I'm type A and very anal. I've just maintained, even when it tells me that I'm meeting all my goals. I like the actual GWF, but don't waste your money on the digital display. Mine never shows the same number that the computer shows when I download the information. There's usually a difference of 20-50 calories. One weekend though, it was different by 300-400 calories the entire 3 days.