You can easily track body mass index and body fat percentage with this
Omron Fat loss monitor. It has metal strips on the side of the handles similar to the one that you can find on cardio equipment at the gym. The strips send a very small electrical current (You can’t feel anything) through your body to get the results.
This is the same model body fat analyzer that is used at my gym. This unit is very simple to setup and takes about two seconds to test. You just hold it out in front of you, and in a few seconds you are done. It is very compact and easy to store. When you are dieting and exercising, sometimes you loose inches and body fat but the scale does not move. This is the perfect device to confirm that you are making progress.