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  • Polar RS300x Orange, Running Series HRM
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Polar RS300x Heart Rate Monitor

by Polar
| 73 answered questions

List Price: $169.95
Price: $116.95 & FREE Shipping
You Save: $53.00 (31%)
Only 4 left in stock.
Ships from and sold by Paragon Sports.
Orange
One Size Size Chart
  • Train at the right intensity with personal training zones
  • Displays calories burned
  • Fitness test measures aerobic fitness at rest and shows progress
  • Compatible with S1 foot pod and G1 GPS sensor to combine heart rate with speed and distance
21 new from $79.95 2 used from $55.78

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Frequently Bought Together

Polar RS300x Orange, Running Series HRM + Polar Flowlink
Price for both: $149.95

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Product Description

Get all the essential heart rate features with this good-looking and simple-to-use training computer. RS300X is compatible with S1 foot pod and G1 GPS sensor, so you can combine heart rate with speed and distance.

Product Details

Color: Orange | Size: One Size
  • Product Dimensions: 6 x 6 x 6 inches ; 2 pounds
  • Shipping Weight: 2 pounds (View shipping rates and policies)
  • ASIN: B00PXKRVYU
  • Item model number: Universal Fitness Inc - rs300x-1234
  • Average Customer Review: 3.9 out of 5 stars  See all reviews (389 customer reviews)
  • Amazon Best Sellers Rank: #91,082 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
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Customer Reviews

Very easy to use.
Jose Zambrana
She sets target goals and works her a** off with this new watch. she has had it about 4 months now and is in love with it.
Lott
I like the chest band with its detachable transmitter and easy-to-replace battery.
Mike Hayden

Most Helpful Customer Reviews

256 of 271 people found the following review helpful By mydogplaysthetrumpet on August 28, 2009
Color Name: Black / GreySize Name: One Size Verified Purchase
For some reason, Polar requires that these units be sent back to replace the battery, which costs $25 + shipping. On top of the annual cost of maintenance, this ship to replace policy leaves you without a heart monitor for about 2 weeks once a year.

The other issue I found is that the reception range is not very good, so the unit won't work well mounted on a bicycle.

Finally, Polar has decided to arbitrarily remove the % fat burn function from some of its watches. This watch does not have it, so keep in mind you will not know what % of your calorie burn was fat.
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100 of 106 people found the following review helpful By Amazon Customer on May 28, 2011
Color Name: Black / GreySize Name: One Size Verified Purchase
So far, I've found the RS300X to be an accurate, easy-to-use HRM with a nice set of features. At the Amazon price, it's a very good value.

By way of background, I've had several previous heart rate monitors. They include about 4 previous Polar monitors, as well as monitors by Garmin, Suunto, and Timex. Polar has always seemed the best at measuring heart rate during activity, especially if you use the Wearlink(fabric) transmitter belt. And since I often work out at gyms, the compatibility with most treadmills and other aerobic machines is an advantage. However, but all my previous Polar HRMs had unintuitive interfaces and poor instruction manuals. Timex was just about the opposite; they had the best receiver (watch) with large, clear displays and easily navigated menus. But I had to return both Timex HRMs that I ordered from Amazon because the heart rate function never worked. It seemed that the transmitter never made good enough contact with my skin, even when I used electrode gel.

My Suunto (model T3C) is a pretty good HRM and the receiver unit looks good, at least if you like the look of a conventional watch. The main display item (eg heart rate) is very easy to read, but the smaller lower display (time or whatever you choose to show) is tiny and hard to read when you're running. If you ordinarily use reading glasses you're out of luck. Also it doesn't display much information, perhaps because the main display item has such large pixels.

The Garmin FR60 is an excellent and generally reliable HRM but the receiver is thick and unattractive. I just sent it in for the 2nd time because it stopped working. Garmin customer support, however, has been excellent. I got the model with the foot pod for measuring distances but I've never actually used the foot pod.
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85 of 95 people found the following review helpful By Mike Hayden on September 6, 2009
Color Name: Black / GreySize Name: One Size Verified Purchase
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
UPDATE: Tuesday, September 8, 2009 1:36PM

After a couple more workouts and a few hours of trying to figure out this product... well, their user documentation is horrible, which means you must spend hours discovering almost everything on your own.

I like the RS300X for its ability to track and store training data. (But, finding the data is a hassle thanks to poor documentation with no examples. Ultimately, I will have to spend time creating a navigation chart myself.)

I like the chest band with its detachable transmitter and easy-to-replace battery.

I don't like the molded one-piece watch-band that forces you to wear the watch atop the wrist. I prefer to wear the watch on the side of my wrist where I can glance down to read, rather than having to raise my entire arm to read.

I still don't like the display because of its obnoxious glare and requirement of perfect up-close vision to read it.

Based on my experience with the RS300X and other Polar products, I would now raise my 2-star rating to 4-stars (if I could). Without excellent and useful documentation - that SAVES MY TIME & FRUSTRATION - I can't give it 5-stars.

All my other Polar products have been reliable and of high quality construction. I assume the RS300X will be the same or better.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Sunday, September 6, 2009 11:25AM

I received my new Polar RS300X a couple days ago. I shoulda shopped around...

I've been using Polar Heart Rate monitors since 1986. and have been pleased with them all... Until now.

I bought this RS300X because I loathe the hassle of sending the equipment in for new batteries.
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111 of 126 people found the following review helpful By BB23 on February 4, 2010
Color Name: Black / GreySize Name: One Size
Nobody loves the Polar Brand more than I do. Actually since 1995 I haven't used any other brand. I have always used the basic model to get the largest screen and font. At the White Rock Expo 12/09 in Dallas I purchased the RS300x w/ the foot pod.
Pros: + the foot pod is incredibly accurate, much better than any GPS technology that you can afford
+ nice looking watch / monitor (although I don't use mine as a watch)
+ chest strap will fit smaller chests ( my children can use the new chest strap)
+ heart rate registers without recording so you can read your heart rate prior to or after your run but it doesn't skew your run data.

Cons: -With 3 lines of text on each screen, You cant read the screen during a run. Particularly the tenths of miles. (This blows the whole deal, what's the point of info you can't read)
-too many screens to go through, just overly complicated a good thing.
What is the value of all that information that you can't read during a run. I get home from a run and realize the thing wasn't on.
There should be a way to opt out of some of the bologna. 99% of athletes don't need that info and don't want it.
I still love Polar and I'm still trying to love the RS300 but its not easy. I guess it like buying a book and when you get home you realize the font is too small to read.
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