I bought this Timex heart rate monitor watch when I started to go to the gym regularly. After a lot of research, I decided on this one based on the price and that I was a beginner with the heart rate monitoring and didn't need some fancy device. I bought this one because it not only tracks your heart rate, but it tracks your calories burned throughout your workout as well. The setup is really easy, and if you read the instructions you can definitely figure out how to use it on a day to day basis. It comes with a chest strap, which you wear while you are working out, and that is transmitted to the watch so that you can accurately see your heart rate at any given point. Once you are done working out, you can see your Recap and how many total calories were burned, and what your average heart rate was through the whole workout. It really is a great tool when you are trying to watch your weight and trying to burn more calories than putting in. It really lets you know how much of a workout you are doing, because without it, you won't really know how hard you are working. Definitely worth the money.