The only difference is that, the treadmill heart rate monitor is attached on the treadmill and could not be carried around wherever you want. Many treadmills today has a built in heart rate monitor. The function conforms to the general use of a heart rate monitor. It keeps you on tract with your heart rate while doing your exercise on the treadmill. Discount heart rate monitor in this case may be an old stock but still fully functional complete with features that are right for your needs. You just have to bear with it but who cares, as long as it is discounted and suite your need it is always okay. In many cases, discount heart rate monitors are found on special sites. If there is over-training, there should be under-training. Like the former, the latter usually happens, as the right amount of intensity can never be accurately monitored. The heart rate monitor will eliminate such problem at the device will enable the user to determine if he achieves the desired level of training intensity. Key to this precision is the use of FM technology. Understand that a typical heart rate monitor is composed of two parts: the receiver and the transmitter. The transmitter is the one that is worn of the chest. It is also called the chest strap. It transmits the heart rate reading to the receiver which gives the heart rate reading to the user. Strapless Heart Rate Monitor and the Conventional Heart Rate Monitor There are two major types of heart rate monitors: the one that uses a strap and the strapless. Most of the manufactured heart rate monitors today are composed of two major parts: the chest strap and the wrist unit. The chest strap acts as the transmitter to which the heart rate is measured. There are still the date and time display, the stopwatch or the countdown timer, alarm, calendar, calorie counter, fat counter, backlight, and more. Reebok strapless heart rate monitor never loses the accuracy of telling the present, average, maximum, and minimum heart rate. You may worry about the need to be interrupted during training for it requires you to stop and place your fingers on the device just like the manual method but the convenience it would bring and the freedom to move in whatever ways you want to without worrying about the strap is far better deal with the Reebok strapless heart rate monitor.