Now our most popular and top performing running computer is enhanced with GPS speed and distance capabilityA smart, intuitive training computer for runners and cross-training athletes, the Polar RS300X wrist heart rate monitor helps you to train at the right intensity with personal training zones. It’s compatible with Polar’s S1 foot pod and G1 GPS sensor (both separately available), enabling you to combine heart rate with speed and distance and truly make sense of your training. Committed runners will find the most value in the real-time pace and distance measurement of the S1 foot pod, while those who mix up their training regimen with cycling, inline skating, paddling, mountain biking or hiking will be best served with the speed and distance G1 GPS Sensor. It comes with the Polar WearLink+ 31 coded transmitter (with changeable battery).Please refer to User Manual.
![]() The RS300X helps you to train at the right intensity with personal training zones. |
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The RS300X enables athletes to train at the right intensity and improve their performance through core metrics such as heart rate, speed, distance, pace, and calorie burn. Advanced features include Polar’s exclusive OwnZone feature for individualized zone training by heart rate or pace, a fitness test, and auto lap splits, which display average heart rate, pace and distance per lap. Athletes can easily review up to 16 past workout files to check their progress and ensure they’re staying on track with their fitness or training plan.
Features include:
- Heart rate displayed as percentage of maximum heart rate, BPM, and average heart rate of total exercise
- Tracks your latest 16 training sessions and your last 16 weeks of training
- Visual and audible alarm in target zones: Informs you every time your heart rate and/or speed/pace exceeds the upper limit or falls below the lower limit of your target zone during a training session.
- Polar OwnIndex Fitness Test calculates aerobic fitness (comparable to maximal oxygen uptake, VO2max) providing a reference to base training intensity and measure improvement.
- Polar OwnCal: Shows your energy expenditure during one exercise session as well as your accumulated kilocalories during several exercise sessions. 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.
- Time in Target Zone feature calculates the amount of total training time spent in your personal target zone. You can use this feature together with the Total Exercise Time to determine the effectiveness of your training program.
- Number of laps – 99
- Watch features: alarm with snooze, dual time zone, stopwatch
- Compatible with Polar FlowLink (available separately)
- Water resistant to 50 meters
- Backlighting, display zoom
- Event Countdown Timer: Keeps your motivation high by showing how many days are left before your next running event (e.g., Berlin 23 days).
About Polar
The first EKG accurate wireless heart rate monitor was invented by Polar back in 1977 as a training tool for the Finnish National Cross Country Ski Team. The concept of “intensity training” by heart rate swept the athletic world in the eighties. By the 1990s, individuals were looking to heart rate monitors not only for performance training needs, but also for achieving everyday fitness goals. Today, the same concept of heart rate training is being used by world-class athletes as well as everyday people trying to lose weight. Polar is the leading brand among consumers, coaches, and personal trainers worldwide and the company is committed to not only producing the best products, but also being the leading educator on the benefits of heart rate based exercise.
Product Features
- Easy-to-use heart rate monitor guides you to train at the right intensity
- Includes H1 heart rate sensor chest strap for continuous, accurate heart rate. Uses coded transmission to avoid cross-talk with other heart rate monitors nearby.
- Built-in Fitness test helps you can track and monitor your fitness improvement
- Displays accurate calories burned and records last 16 training sessions and your last 16 weeks of training
- Compatible with S1 foot pod and G1 GPS Sensor for speed and distance (not included, sold separately)
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Overall a decent product with some minor drawbacks 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…
Excellent basic HRM 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…
Electronics OK, crappy display ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~UPDATE: Tuesday, September 8, 2009 1:36PMAfter 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…
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