Heart rate monitors are used by runners, Triathletes, cyclists, people who walk on treadmills and aerobic exercise enthusiasts. Monitors must be firmly secured to the person engaging in the exercise. An easy, efficient way of keeping a heart rate monitor tightly affixed and obtaining a reliable and accurate heart rate is by wearing heart rate sports watches from HeartRateMonitorsUSA.com. There is a wide array of watches that can monitor heart rate. Garmin offers the Forerunner 199 GPS Sports Watch and the Upgraded Forerunner 199 GPS Sports Watch. These bestselling watches require no set up. Once you press the start button, you just walk or run. Both use GPS to record distance, and you can go back at a later date and check your previous figures. They also have a computer application to upload for more detailed heart monitoring. A higher end sports watch is the Garmin Forerunner 910XT Multisport GPS Training Watch with Heart Rate Monitor. This sports watch monitors heart rate during running, cycling and swimming. Depending upon the features and applications desired, there is a sports watch heart rate monitor for just about everyone. All sports watch heart rate monitors are excellent heart safety tools to maximize training, distance and speed. Many personal trainers and coaches require their clients to wear them. Timex, Suunto, Polar and Magellan are four other of manufacturers that feature sports watches for accurately monitoring heart rate during exercise. Prices of Garmin and the other sports watch makers range from $99 to around $400.