And if the strap would not fit properly, there is a great tendency for inaccurate reading. The next thing to consider is the display. 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. Memory: To be able to record the data of your previous training, you should need a heart rate monitor that has a good memory storage capacity. It is important to note that the lesser memory size can normally record 1 to 2 training sessions while heart rate monitors with large memory storage can record multiple heart rate data. 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. Not only it provides a better tool to keep track of our training, treadmills give us the convenience of being inside a safe room. With treadmills, we would not require ourselves to wear training clothes suitable for the summer days. We will never have any reason not to run during winter days. And we will never be able to miss one day of training if rain begins to fall outside our windows. But even if the Reebok strapless heart rate monitor uses no transmitter, basic features and special features are still present. 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. With the wristwatch heart rate monitor, you can now know if you are training too hard and need to slow down or if you are training too weak and you need to pick up your pace. 3. Portability. Wristwatch heart rate monitor is small and compact, thus it would eliminate the need for big space. And with its size, you can have the convenience of treating it more as an accessory than an exercise tool.