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. And by doing so, you would interfere on your whole run that would destroy your pace. Like what was said, the normal heart rate monitor can provide measurement whenever the user wishes to have it. The strapless heart rate monitor provides an on demand only heart rate measurement. Strapless heart rate monitor does not give a continuous heart rate data and the measurement is only given whenever needed. But if you do not have a fitness expert to guide you, there is one device that could replace them: heart rate monitor. Heart rate monitor is designed to be the ultimate exercise companion even if fitness trainers are available. Heart rate monitor gives virtually the same expertise with that of a fitness trainer. With the heart rate monitor, you can determine your current heart rate more effectively plus the ease of eliminating the hassle of counting your heart rate with your fingers against time. Training Efficiency: For people who take training seriously, making the most out of every minute of training is very important. 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. 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.