Heart Rate Monitor Problems

Former Member
Former Member
I like to swim w/ a heart rate monitor. I have a Polar that is "water resistant." Lately I've noticed that it is not working 100%. It keeps time perfectly, but my heart rate does not always register properly. If I shake my arm where the watch part is, it will start working again so I'm thinking maybe it is not meant to be in the pool. Does anyone know what exactly water resistant v. water proof means? Does anyone else swim with a heart rate monitor? Any problems? Solutions? Thanks!
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