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Polar RS100 Heart Rate Monitor Watch

Polar RS100 heart rate monitor watchThe RS100 is Polar's basic entry-level heart rate monitor watch for runners. The retail price is $119.95, though you will normally find it for around $90.

You can find full specifications at the Polar website. Here are some details:

The Polar RS100 wrist heart rate monitor helps you to easily and accurately measure your heart rate to help you get to just the right intensity or your exertion level. This basic HRM features added stopwatch and time-of-day watch features as well as extra-large digits for easy readability. The Time in Target Zone feature calculates the amount of total exercise time spent in your personal target zone. You can use this feature together with the Total Exercise Time to determine the effectiveness of your exercise program.

The RS100 displays heart rate as beats per minute (beats per minute) and as a percentage of the maximum heart rate. The Target Zone feature can be set manually or automatically (for age/weight), and the RS100 provides visual and auditory alarms when you've moved away from the zone. Other features include dual time zone, alarm with snooze, and water resistance to 50 meters.

It's a great choice for using in large groups, where other exercisers might be using wireless training gear that could interfere with your own signal. The RS100's coded transmission prevents crosstalk with other monitors so you'll get a personalized workout--even in a class environment.

It also includes the following exclusive Polar features:

* Polar OwnCal: This feature shows your energy expenditure during one exercise session as well as your accumulated kilocalories during several exercise sessions. You can set daily and weekly exercise goals in terms of calorie expenditure with the OwnCal feature. Because the OwnCal tracks both the energy expenditure during one exercise session and the accumulated kilocalories during a longer time e.g. one week, it helps in achieving both short term and long term goals.

* Polar OwnZone: This feature guides you through an appropriate warm-up routine and automatically determines a safe and effective exercise heart rate zone--your OwnZone--while taking into account your current physical condition.

In a very brief review, Runner's World commented:

The RS100's customized heart-rate zones are based on your actual resting and running heart rates, as opposed to the one-size-fits-all formula found in other heart-rate watches. This makes it easy for runners to train efficiently and maintain a workout log matching up their best and average heart rates with their splits. Our testers also gave high marks to the watch's instant fitness reports--including what percentage of your total calories burned are from fat.

The Boston Globe tested five heart rate monitor watches and wrote:

All five models successfully pushed us to run hard, but not too hard. Beyond that, each delivered a different slate of features, from the ability to map routes to an optional pod that attaches to the runner's shoe and records speed and distance.

...In fact, we found the Polar RS100 and Timex Ironman Triathlon to be the best options for casual runners. They offer basic features such as the ability to save data, enter personal information, and set heart rate targets. They're also cheaper and easy to use. has more than 40 customer reviews for the RS100, most of them very favorable. Here is one example:

This heart rate monitor is my first, and is in the middle of my second marathon training season, and has gone with me to five half marathons. I bought it because of the dual timer. I started as a run walker and with two timers, it told me when to run and walk to take a walk break, and then got me back running again.

I tuck the monitor underneath the bottom rim of my sports bra, and occasionally it slips down a bit, but mostly the elastic strap, not the actual monitor. I also used to have weird connection problems - out of the blue I would get impossibly readings. 95% of that has gone away since I got "buh bump," an electrode cream created by one of the makers of the polar watches.

I consider this watch an essential part of my running wardrobe. It always shows your heart rate, and you can toggle the top level of information including the time, calories, and other features. I follow my heart rate closely because I tend to push myself a bit much, and the beeping is a great reminder to slow down, as annoying as it is.

* Get the Latest Price on the Polar RS100 Heart Rate Monitor Watch. Also, check out the Polar Store at for special offers and promotions, as well as user reviews and information on new products.

See also my Guide to Buying the Best Heart Rate Monitor.

Updated November 17th, 2009


See Also:

Acumen Heart Rate Monitor
CardioSport Heart Rate Monitor
Garmin Heart Rate Monitor
Mio Heart Rate Monitor
Mio Shape Heart Rate Monitor
Nike Heart Rate Monitor
NuMetrex Heart Rate Monitor Sports Bra
Omron Heart Rate Monitor
Omron HR-100C Heart Rate Monitor
Oregon Scientific Heart Rate Monitor
Polar F4 Heart Rate Monitor Watch
Polar F6 Heart Rate Monitor Watch
Polar F7 Heart Rate Monitor Watch
Polar F11 Heart Rate Monitor Watch
Polar F55 Heart Rate Monitor Watch
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