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. This is more comfortable than any other material used on a belt chest. Since training involves a lot of movement, durability should also be considered. Among all the things, you should be mindful that what you need for a belt chest heart monitor is its long service. Hence, select one that will last for several years. Discount Heart Rate Monitor The basic normal heart rate monitor with basic features would often cost around $50-$100 while higher models with several upgraded features and killer design would range between $100-$350. This is okay if you are earning so much or if you only need one heart rate monitor. But if you require to have several units or if you are not so blessed with much resources, at this price, you might not get the right model and right quantity you wanted. Polar Heart Rate Monitors Polar has been making top quality heart rate monitor for quite some time. And with the years of experience and effort to create top caliber heart rate monitor, Polar has perfected in answering the needs of every heart rate monitor seeker. The complete line of Polar heart rate monitor today proves that the company is committed in giving every trainer, athlete, and fitness enthusiast the reason to keep on staying active. Most doppler fetal heart rate monitors are battery operated, lightweight, and very portable so you can carry it wherever you go. Some are also compatible with any PC so you can track and record every detail you would get from the monitor. With the doppler fetal heart rate monitor, you can now experience the connection with your child safer and earlier than you can expect. More there is a need to monitor the previous training records, Reebok heart rate monitors add memory as a feature. The memory would be able to record the minimum, average, and the maximum heart rate, the average heart rate per lap, and the time during, below, and under the target zone. With this memory capability, Reebok heart rate monitor would immensely provide you that much needed monitoring of your whole training.