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Polar-rs300x.32670369
8.7 out of 10

Polar RS300X

Average and maximum heart rate of each lap Average and maxim Read more

Great Deal: $98.95

Reviews and Problems with Polar RS300X

Showing 1-10 of 165

Polar RS300X Heart Rate Monitor - Men's

REI
7 October 2013
  • Summary: I bought this as a replacement for an FT-7 that was losing the signal quite often. I do not know what was wrong, but decided to upgrade to this one which has a better sensor. I like that I can choose to add a GPS or shoe sensor to this one, although I have not done that. I have not used all of the extra features, but for the basic tracking that I do use, this unit works great and after maybe 60 miles of hiking I have not had it lose sync, not even once (only had it 3...
  • Pros: Accurate, Gives A Quick Reading
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Polar RS300X Heart Rate Monitor - Men's

3390, REI
8 September 2013
  • Summary: I bought this monitor after my last Polar died after years of use. This model was easy to program and has stayed in position regardless of the activity Ive been performing (running, plyometrics). I like how the monitor's band is machine washable; the batteries are also easy to replace. The only drawback I've noticed is twice the receiver and transmitter have lost their connection.
  • Pros: Accurate, Compact Design, Easy To Use, Gives A Quick Reading, Versatile
  • Cons: Connection
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Polar RS300X Heart Rate Monitor - Men's

OOToole, REI
21 May 2013
  • Summary: Great Beginner HR watch. It does what it's supposed to do. It establishes a quick reading as well as maintains constant updates as your HR changes. However, the button placement is not very good. I wear gloves when riding and EVERY time I ride the buttons get pushed by my gloves. This changes the screen display and even starts / stops my HR monitoring. Very annoying. Also, the computer uploading is nearly impossible. I've never tried it for two reasons.
  • Pros: Accurate, Easy To Use, Simple To Read
  • Cons: Button placement, Limited Features
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Polar RS300X Heart Rate Monitor - Men's

REI
2 May 2013
  • Summary: In theory, this should've been a great HRM. Polar certainly has a good name in the business. The first thing I discovered when I opened the box was that the battery in the transmitter was dead. Well ok, I'll replace the battery. When I replaced the battery, the HRM started showing a heart rate of between 188 and 190 bpm. I normally top out around 170 and since this value showed up when I was standing still (60bpm by a hand count), the HRM clearly wasn't working.
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Polar RS300X Heart Rate Monitor - Men's

Randyman99, REI
11 April 2013
  • Summary: Let me give some background of previous HRMs I've had and my likes and dislikes to put the Polar RX300 in perspective. Over 10 years ago I had a Polar Protrainer NV. It had a chest detector/transmitter which attached to an elastic strap to go around my chest. What I liked about this monitor. It was solid and waterproof – I could wear it swimming. You set your stats and your zones, and you could set it to beep if you were outside of your target zone.
  • Pros: Accurate, Versatile
  • Cons: Limited Instructions, Stiff Band
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Polar RS300X Heart Rate Monitor - Men's

Ray52, REI
10 March 2013
  • Summary: Make sure you wet the contacts on the chest band before putting on.
  • Pros: Easy To Use, Gives A Quick Reading, Versatile
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Polar RS300X Heart Rate Monitor - Men's

andrewmm, REI
28 February 2013
  • Summary: I'm a runner and wanted to push my training to the next level by tracking my heart rate. I'm your slightly better than average weekend warrior runner. However, I was shocked to find out this watch lacked a basic function to time laps/splits. There's no way to determine how long I've been running except to know what time I started and stopped and then do the math. The cheapest $30 watches have this basic function.
  • Pros: Compact Design, Easy To Use
  • Cons: Limited Features
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Polar RS300X Heart Rate Monitor - Men's

JRoc6673, REI
27 April 2012
  • Summary: I use the RS300x 98% of the time indoors for CrossFit, biking and running. I live in Chicago, so the weather changes fast. Zone training has changed my workout intensity. It's like having a coach with u to push you, but he knows what's going on with your body. I would totally recommend this to a friend. It will help you hit new levels in training. I order it though REi cause i like the service. I hope they have nothing but great success.
  • Pros: Accurate, Compact Design, Easy To Use, Gives A Quick Reading, Versatile
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Polar RS300X Heart Rate Monitor - Men's

Numbersguy, REI
28 September 2011
  • Summary: I like a dependable/reliable product that gives me what I need without a lot of "extras". The RS300X is that type of product. The chest band is very sensitive; following Polar's recomendations to wash in a washing machine at least after every 5 uses is a must, otherwise readings on the monitor will be off the charts.
  • Pros: Accurate, Compact Design, Easy To Use, Gives A Quick Reading, Versatile
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Polar RS300X Heart Rate Monitor - Men's

925Tri, REI
23 May 2011
  • Summary: Been using Polar HR monitors since the early 90's so I'm a big fan and overall the RS300X is impressive, although I do have two gripes. The start/stop button doesn't always register when pressed - I've had dozens of runs where I hit the start button, only to get a mile or two into the run and realize it hadn't started the chronograph. The second frustration is that after a year of use my band has cracked and broken and the Polar's don't have replaceable bands.
  • Pros: Accurate, Compact Design, Gives A Quick Reading
  • Cons: Band, Buttons
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