These include calendar, time of day, the current, lowest, average, and maximum heart rate, plus the percentage of the maximum heart rate, target zones, exercise functions, and more. 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. 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. Another unique feature of a heart rate monitor that surpasses the ability of a private fitness instructor is its capability to count the number of calories burned during the whole exercise plus the capacity to estimate the percentage of the fat burned. Heart rate monitor can also provide you with summary of the last exercise and the previous exercises with its memory storage capacity. The heart rate monitor watch would even be very effective on regular people who just want to see on their will the status of their heart even if they are not in training or running. Now, people on their way to the office or people waking up early in the morning can access instantly the status of the heart accurately and conveniently. While these would be good reasons to buy your first heart rate monitor, it might be unwise. Buying heart rate monitors would mean determining your need for a device. Since every heart rate monitor in the market is designed for a particular type of need, this must be your first consideration. Determine if you are using it for swimming, biking, running, or plain exercising. Polar has specific heart rate monitors for specific activity such as fitness, running, cycling, outdoor, team management, healthy living, and weight management. Polar also has different types of heart rate monitors that are suited for each type of user with different demands. For starters and for those whose demands are only to monitor their heart rate during regular exercise, Polar provides the F series.