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. With treadmill, add we have to do is to step on it and off we go; no weather considerations, no outfit to match the cold, and no dogs to chase us while we run. 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. Since this is the single most important part of every training, having the right tool to monitor the cardiovascular fitness is very important. The heart rate monitor lets the user to know if the intensity of the training is too much or just right. Accuracy: If you are using your fingers to know what is your current heart rate, you are probably having a difficult time determining your precise heart rate. 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. Discount heart rate monitor in this case may be an old stock but still fully functional complete with features that are right for your needs. Functional Most Cardiosport heart rate monitors are packed with functional features needed for a total fitness and exercise companion. Features include stop watch between 10 to 100 hours (depending on the model), countdown timer, time control, heart rate training control, energy control, memory samples, lap time memory, EL screen light, ECG accurate heart rate, time in below and above target zone, interval timer, split time memory, changeable transmitter battery, time of day, calendar and alarm. If you are a female, you might have a bit of a trouble finding the right belt chest that could fit you properly. Make sure that before you buy a belt chest heart monitor you ensure that you get the best fit possible since imperfect fit could result to inaccurate heart rate reading. These four might be very basic but could mean efficiency and money worth in the long run.