The type of heart rate monitor with this feature is much expensive. There are two components of a heart rate monitor: the wrist display and the chest strap. Both should fit to your body well and both should be able to work together by properly submitting data from the chest strap to the wrist display. Comfortable Cardiosport heart rate monitor s strap is made from soft fabric that would not interfere with the exercise. Other heart rate monitors might be uncomfortable and may tend to be improperly worn. Cardiosport heart rate monitor assures user to have a great exercise without worrying about the comfort of the chest strap. The doppler fetal heart rate monitor can be used on expectant mothers carrying as early as 10-12 weeks old fetus to the moment you are about to give birth. So the first bond you would create with your child would start the moment you make contact with through the doppler fetal heart rate monitor. The doppler fetal heart rate monitor lets you know and hear the heart beat of the baby inside you while seeing the digital result on an LCD screen. Heart Rate Monitor Watch It was not so long ago when our wrist s only permanent occupants were watches. This is not bad of course, especially if we only need is a device that would tell us the time. But for runners, athletes, and trainers, a simple time-telling device wrapped around the wrist would not do. 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. 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.