It is light, compact, and stylish which would make it more wearable. Wearing a wristwatch heart rate monitor would still give you the freedom to move in ways you want to. 5. Training convenience. Manual heart rate checking would require you to stop either in the middle or at the end of your run. Either way, you still have to stop. 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. But for runners, athletes, and trainers, a simple time-telling device wrapped around the wrist would not do. Because for them wristwatches are not enough. They need something that could give them the exact status of their heart while on training. They need a heart monitor watch. Since knowing the status of the heart is very important in telling the effectiveness of the workout, monitoring the heart rate would be very important. The doppler fetal heart rate monitor uses high frequency sound waves that lets you hear the sound of your baby s heart beat through an audible device sometimes an earphone or a speaker that is usually built-in on the heart rate monitor. In order for this wave to travel, the doppler fetal heart rate monitor is aided by particular liquid often a lotion, oil or water. For the strapless heart rate monitor, the main advantage it presents is the convenience of wearing only the wrist unit. There is no need to wear the strap with transmitter. However this might not be very appealing to those who would like to have an access of their heart rate whenever they demand to. The strapless heart rate monitor might not be good for training for it interrupts the continuity. Here are some of the reasons why people should use heart rate monitor: Fitness monitor: When people train, they need result and that result in one and only one thing: cardiovascular fitness. Since this is the single most important part of every training, having the right tool to monitor the cardiovascular fitness is very important.