So anyways, I have packed on a few pounds (don't ask why.. I just happen to have a sweet tooth) and have decided to go back to the gym. I figured this would be the best way to do so. I am not really looking to lose much weight but would rather add muscle where fat is currently residing. To me, this is the perfect way to know, since the scale might not change much but at least I should see a change with this monitor. The monitor works as promised. It also comes with two AAA batteries so you can try it as soon as you get it. Ideally of course you want to measure same time every day so that you see your progress.