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Polar CS300 Cycling Computer

Item #: CP311A02
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A cycling computer and fitness monitor in one compact device. Use it to get valuable feedback on your performance, on or off the bike. The cyclecomputer portion offers a wireless speed pickup for easy mounting.
  • Kit includes wrist unit, chest strap, and wireless speed pickup and magnet - everything you need to get started for on-bike training
wireless, accurate heart rate
calorie expenditure and fitness test modes
heart-rate based target zones with visual and audible alarms
max and average heart rate feature
Keylock feature

Trip distance and total distance odometer
Average, current, and max speed
ETA feature
estimated calorie consumption
Auto start-stop

This unit can be used with the Polar PC desktop training software and web service by connecting via SonicLink. The components/software to do so are sold seperately from this item.


by PowerReviews
Polar CS300 Cycling Computer

(based on 2 reviews)

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Reviewed by 2 customers

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I received it as a...

By David

from Saltillo, Mx

Comments about Polar CS300 Cycling Computer:

I received it as a gift from my wife, and since I have it I can see which trainings are helping me to improve performance in local races, calories counter is very useful to measure my intakes after workout or racers. I do recommend it if you do not want to spend to much in a bicycling computer and still have a HRM for running and swimming, great advantage over lower series which are mounted on the handlebar only.


I received my...

By Fred

from Houston Tx Usa

Comments about Polar CS300 Cycling Computer:

I received my fourth, yes my forth replacement watch from Polar yesterday, and I'll be sending it back tomorrow. The first one, the one I bought, worked fine except that the sonic link tones it produced were so low it could take 45 min. before you would get a successful upload to the website. When I called Polar I was told that they had had a problem with a batch of watches and that they would fix it. I sent it in, got a new one sent to me which did the exact same thing. I called them again, explained the problem again and was told they had sent me one of the bad watches by mistake. The third one was fine, for about two weeks. While on a ride the speed stopped displaying. Then it would start again but the cadence would quite. Then the heart rate would go nuts, the speed would quit, the cadence would go nut, the speed would go nuts also, and on and on. I called back, they sent me another one, my fourth, which I received yesterday. I went for a ride this morning, got back, went to upload my data and nothing. Not one chirp from the sonic link. I have had it with this thing. Time to get my money back and find a monitor that is NOT made in China.

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Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.