Heart rate monitor watches are easy and convenient to use. Using a heart rate monitor watch is the easiest way to ensure you're reaching your optimal heart rate during workouts or to track stress levels during the day. Achieving your maximum heart rate can be dangerous. A heart rate monitor watch can also enables you to keep training at the right level of intensity, giving you immediate feedback on how hard you are working out. There are some basic heart monitor watches that are good for beginners. These just simply measure rate without any complicated features. There are other heart monitors that have more advanced features such as transmitting data from a watch to the computer, analyzing physiological levels, tracking calories burned and performing like a personal trainer. These replica watches are designed for more experienced exercisers who need additional information about their workout. If you are looking for an inexpensive heart monitor with basic features the Omron HR-100C is highly rated. It continues to get good ratings despite it's average retail value of $35. The watch gives a clear reading and comes with a chest strap and an out of distance alarm. The watch is actually very accurate but can pick up interference since coded transmission is not used. The Timex Personal Trainer Heart Rate Monitor T5G971 is designed for those on a budget who would like to track their heart rate and calories. The rate monitors' average cost is $60. In an independent recent study the watch received the highest ratings. It is accurate and comes with a chest strap, an indigo backlight and a clock. The battery can be replaced by the user which saves them money from going to a dealer. The biggest complaint for this heart monitor is that the owner manual provides incorrect information. Another rate monitor by Timex is the Easy Trainer Analog Heart Rate Monitor T5G941. This watch also performed well in tests conducted in Britain. This monitor is very basic and designed for beginners. It sells for an average price of $40. It doesn't show calories burned or training zones but many users feel like this watch is a "steal" at this price.