It makes everyday exercise a lot easier and more enjoyable through its several exciting features although its main purpose is to measure your heart rate during training. Some heart rate monitor can design a specific workout program for the user. This would mean that the heart rate monitor determines how fast, how long, how hard and how much effort the user should exert in order to meet the targeted workout program. There are two components of a heart rate monitor: the wrist display and the chest strap. Both should fit to your body well and both should be able to work together by properly submitting data from the chest strap to the wrist display. Some are heart rate monitors are coded some are not. A good heart rate monitor is coded for it does not interfere or is not prone to interference to other monitors which could result to inaccurate readings. And with the length Nike has been in the market offering top quality sportswear such as shoes, shirts, and pants, and equipments such as bags, different kinds of sports balls, and others from different sports arena, it is just right that the company would also give its consumers the right fitness companion. When you need a cardiovascular fitness, there is one part of the body you should monitor: the heart. And with the data a wristwatch heart rate monitor can give, you can now know the activity of your heart which would make you more conscious about how to train. With the wristwatch heart rate monitor, you can now know if you are training too hard and need to slow down or if you are training too weak and you need to pick up your pace. While you busy yourself to keep on tract, these Polar heart rate monitors are busy to keep your heart monitored and track your distance and speed. People who love cycling need not to worry about the monitoring of their heart rate. Polar heart rate monitors have Polar S725X, S720i, CS200, CS200cad, CS300, CS100b, CS100. Expanded features: While it is advisable for beginners to get the basic heart rate monitor and work from there, others might be very eager to try higher-end heart rate monitors with calorie counters, built-in training program, and built-in trainer-like features that would guide user throughout the whole training, the choice is still up to you.