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  • Polar RS300X SD Heart Rate Monitor Watch with S1 Foot Pod (Black)
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Polar RS300x SD Heart Rate Monitor

by Polar
| 7 answered questions

List Price: $249.95
Price: $159.95 + $4.90 shipping
You Save: $90.00 (36%)
Only 1 left in stock.
Ships from and sold by Runner's Haven.
Black / Grey
  • Watch and heart rate monitor in one designed to help serious fitness enthusiasts study and optimize their aerobic training
  • Smart Coaching features help you train at proper intensity for desired results; Polar Fitness Test designed to remove guesswork from training
  • OwnCal calculates number of calories expended during a training session based on weight, height, age, gender, and maximum heart rate
  • Comes with Polar RS300X training computer, WearLink+ transmitter, S1 footpod, RS300X Getting Started Guide, and S1 foot pod user manual
  • Includes limited two-year manufacturer's warranty
7 new from $159.95 1 used from $160.00

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$159.95 + $4.90 shipping Only 1 left in stock. Ships from and sold by Runner's Haven.

Frequently Bought Together

Polar RS300X SD Heart Rate Monitor Watch with S1 Foot Pod (Black) + Polar Flowlink - One - Black
Price for both: $208.77

These items are shipped from and sold by different sellers.

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Product Description

You want to go for a run and know how speed and distance can aid your performance. Without heart rate, you can only get so far.

Product Details

  • Shipping Weight: 1 pounds (View shipping rates and policies)
  • ASIN: B003F5WMDA
  • Average Customer Review: 3.8 out of 5 stars  See all reviews (115 customer reviews)
  • Amazon Best Sellers Rank: #136,386 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  • Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

3.8 out of 5 stars

Most Helpful Customer Reviews

56 of 56 people found the following review helpful By John Phillips on March 5, 2011
Color: Black / Grey Verified Purchase
I love this watch. I own a Garmin 305 as well which I bought after a disappointing experience with the RS200. My biggest disappointment with the RS200 was that the transfer using one's computer speaker became difficult to impossible after a few months. Although it is an additional purchase, the flow link has solved the problem of uploading data to a users computer. While most competitors don't charge extra for a device to upload data, Polar does include a very comfortable fabric heart rate monitor strap. To upgrade the Garmin rubber strap it costs about the same amount of money as the Flowlink for Polar watches so it is a wash in the end. Nobody does GPS better than Garmin and mine has been a reliable watch. Although my Garmin gives me heart rate information, it is very simple. Polar is certainly more of a training tool and better suited for runners who emphasize heart rate training over simply how far they went. Garmin can give you an aerial map of where you ran but this is not very important if you run the same few routes around where you live usually. I chose the foot pod so that I could track my training distance indoors and out with my polar. It definitely needs calibration but once that is done it gives data that is very close to the GPS distance. The pod is a little larger than other companies foot pods but it is still unnoticeable weight wise when running with it. It uses a single AAA battery and is waterproof and gets an estimated 20 hours of life. More important than the foot pod size, I appreciate the normal watch size. The Garmin is a brick and even the newer models can not be worn as a sport watch during other activities or at work due to their awkward size. I am very happy I decided give polar another chance.

Update 2/20/12
I feel obligated to revise my earlier review.
Read more ›
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36 of 38 people found the following review helpful By Kimba on June 11, 2011
Color: Black / Grey
I was excited when I purchased this. I did not even flinch at the cost as I wanted to track my running on the computer. I never got it to sync with the computer. I took it to a running store with the instruction book - they couldn't figure it out either. And the instruction book did not match the screens/menus, which were complicated and not well arranged.

I decided to keep it anyway. Well, about in a year the battery went out. You must send it back to Polar who will charge you $100! AND it takes them about 1 month. Then in about 1 year it happened again. this time, I took it to a watch shop. Unfortunately, then it only lasted about 3 more months!

So I am on the hunt for a new heart rate monitor and thought I should warn potential buyers - Avoid Polar in general and this one specifically.
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18 of 18 people found the following review helpful By Stephan on July 23, 2010
Color: Black / Grey
The RS300x SD is accurate and a great aid to my training. Once properly calibrated, the foot pod provides accurate pace read back to help me work on my speed and pace. Keep in mind that you should recalibrate the foot pod when the environment and/or factors change such as new shoes or running on a track versus a dirt trail. I also own a GPS training watch and if you are a runner more concerned with speed and accurate readings for pacing, this watch is perfect. For long distance jogs, I use my GPS watch. GPS watches take more time to determine the pace and the delay may be too long to be useful. The foot pod gives instant pace and speed readings. At first, the user interface may seem a little unfriendly but I found it to be quite easy after a couple minutes of playing with the watch. It may be a good idea to tuck in your shoelaces because the lace hitting against the foot pod while running may get annoying after awhile. The heart beat sensor was surprisingly comfortable. I am happy with my purchase and felt that it was well worth it.
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17 of 19 people found the following review helpful By Jeffrey Wiser on April 27, 2010
Color: Orange / Black Verified Purchase
I purchased this watch after running my first marathon and having a conversation with a guy during the race, who was wearing a polar watch. It really came in handy during the race to make sure we were on pace for our goal. Using a standard watch is nice but as we all know, race mile markers aren't certified and therefore your splits will be off. The footpod is great but you absolutely need to calibrate it. Not sure if its my stride but it was not very accurate out of the box, I ran a half marathon (13.1 miles) and it registered about 14.5 miles. The menus are fairly easy to figure out but I did need to consult the user manual a few times. I personally love the fact that you can customize and switch between 5 different views on the fly while running. The heart rate monitor is your basic type and works well. Overall, I would say this product is worth it if you do longer races including or above a 10k or if you train by yourself. Having the information this watch provides is great for pushing yourself.
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12 of 13 people found the following review helpful By G.G. on January 12, 2011
Color: Orange / Black Verified Purchase
I've been researching HRM watches for a while and decided to try this one out (ultimately I went with the Garmin FR60). I had the Polar F6 before this and was pretty happy with it...until the HR strap went out and I found out that the only way to replace the battery was by sending it back to the manufacturer. I thought I would have a pretty easy time with this one since I've had a Polar before, but that was not the case. It has a very complicated user interface and I could not figure out how to get the calories to display for each individual workout. Instead, the only thing I could get was a total of the calories burned for the week - so I would have to subtract the previous amount in order to figure out calories for that day. In addition, the foot pod is really large and though you don't really notice it when you run, it definitely gets in the way otherwise. The Garmin foot pod is very small so I'm not sure why Polar's is so monstrous. The watch is also really big and it is not the red color that appears in the photo - it is emergency orange and not very attractive.

Here are the functions that were useful:
-HR is reliable and the new strap is better than their old model (with a user replaceable battery)
-Keeps track of pace and overall mileage
-Holds up to 16 days of workouts

Things that need improvement:
-The setup is not user friendly and I had to carry around the manual to figure it out before workouts
-You have to purchase the flow link in order to upload workout data to a computer
-Calories are not displayed for each individual workout
-Watch is bulky and a terrible color
-Foot pod is really big and requires calibration to be reliable

Overall, if you are looking for a watch that will allow you to track multiple activities, I would go with the Garmin instead. It is slightly more expensive (about $30), but worth it. The Garmin is much more user friendly and provides tons of helpful information.
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