Swimming with RCX3

RCX3 is water resistant as long as buttons are not pressed under water. So you can safely swim with it. It will not, however, measure your heart rate during swimming. This is because its W.I.N.D. frequency cannot be transmitted in water.

How is water resistance tested?

In the watch industry water resistance is generally indicated as meters of water pressure, which means static pressure of water at the level in question. Polar uses this same indication system. Water resistance of Polar products is tested according to International Standard ISO 2281. Every Polar device that has water resistance indication is tested before the delivery to stand water pressure.

Polar products are divided into four different categories according to their water resistance. Check the back of your Polar product for the water resistance category, and compare it to the chart below. Please note that these definitions do not necessarily apply to products of other manufacturers.

When performing any underwater activity, the dynamic pressure generated by moving in water is greater than the static pressure. This means that moving the product under water subjects it to a greater pressure than if the product were stationary.

Marking on the back of the product
Wash splashes,
sweat, raindrops etc.
Bathing and swimming
Skin diving with snorkel
(no air tanks)
SCUBA diving
(with air tanks)
Water resistant characteristics
Water resistant
OK
-
-
-
Splashes, raindrops etc.
Water resistant 30/50 meters
OK
OK
-
-
Minimum for bathing and swimming*.
Water resistant 100 meters
OK
OK
OK
-
For frequent use in water but not SCUBA diving.
Water resistant IPX7**
OK
-
-
-
Do not wash with a pressure water

*) These characteristics also apply to all Polar WearLink transmitters.
**) International IEC 60529 IPx7 Standard.