The belt strap heart rate monitor and the strapless heart rate monitor can be used during training. Both have similarities but both present advantages and disadvantages. The belt strap heart rate monitor and the strapless heart rate monitor both can accurately provide the user with accurate heart rate measurement which is impossible with manual method. This is far too different from manual reading since it would not require the reader to stop and check for his wrist or his neck to get a reading. Heart rate monitor watch would make it easy for anyone to do the reading by just checking in the watch. The heart rate monitor watch can tell if the user have to slow down of speed up his activity. You have to take into account the when you are training, either you are running, swimming, biking or on a treadmill, you are making great body movements. And when you do such activities, there is a need for a large display. Large display would enable you to read easily in arm s length your heart rate without the need of stopping for few seconds. But the fact still remains that it would not give you the right monitoring you would need to move one step further in reaching your goal, which could only be done if you would use one particular device: heart rate monitor. This makes Nike heart rate monitor comes into the picture. Nike heart rate monitor is a revolutionary device that would enable you to check the status of your heart every time you demand it. Also, others might give discounts on heart rate monitors because there are newer models to be released and the older ones must be disposed immediately. There is nothing wrong with it since there is not much of a difference when you get discounted heart rate monitors or not. Newer version could have little difference with the discounted unit. 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.