Some are with belt chest while some are strapless. Some can store multiple data while some can store only one. But with these differences, a good heart rate monitors designed for fitness maintenance does not have to be very basic or very high-tech. It has to be functional and very suitable for the particular fitness demand. The strapless heart rate monitor requires no strap to wear around the chest which in turn would provide more relaxed and comfortable feel during training. It uses only the wrist-worn device that reads the electronic signal released by the heart through the fingers pressed on the device for a given length of time. Normally, a heart rate monitor is composed of two parts: the transmitter and the receiver. These two works hand-in-hand to provide the most accurate heart rate reading- far better that the manual method. The transmitter is usually strapped on the chest that calculates the current heart rate. It would then transmit the data to the receiver which is usually worn on the wrist. Heart Rate Monitor Help on Exercise and More With the growing awareness to remain healthy, it is not surprising that most people would try to do their best in order to stay within the normal body. And the best mean to do that is to exercise. While exercising could be good, plain exercise without guidance from expert might have less effect. The foundation was prompted by the necessity to have a heart rate monitor that would give her the best result in maintaining her normal weight after giving birth. She realized that the best way to have her weight back was to be conscious about the food she eats and the level of exercise she would take. This manual reading would be able to tell the heart rate of the runner. But then there is a great tendency to be inaccurate in reading the heart rate manually. With the heart rate monitor watch, runners, athletes, and trainers would eliminate the need for manual reading. As a result, the heart rate monitoring would be more accurate.