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WATER RESISTANCE OF POLAR PRODUCTS
Most Polar products can be worn when swimming. They are not, however, diving instruments. To
maintain water resistance, do not press the buttons of the device under water.
Polar devices with wrist-based heart rate measurement are suitable for swimming and bathing.
They will collect your activity data from your wrist movements also when swimming. In our tests,
however, we found that the wrist-based heart rate measurement doesn’t work optimally in water, so we
cannot recommend wrist-based heart rate measurement for swimming.
In the watch industry, water resistance is generally indicated as meters, which means the static water
pressure of that depth. Polar uses this same indication system. Water resistance of Polar products is
tested according to International Standard ISO 22810 or IEC60529. 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 swim-
ming
Skin diving
with
snorkel
(no air
tanks)
SCUBA
diving
(with
air
tanks)
Water resistant char-
acteristics
Water resistant IPX7 OK - - - Do not wash with a pres-
sure washer.
Protected against
splashes, raindrops etc.
Reference standard:
IEC60529.
Water resistant IPX8 OK OK - - Minimum for bathing
and swimming.
Reference standard:
IEC60529.
Water resistant
Water resistant
20/30/50 meters
Suitable for swim-
ming
OK OK - - Minimum for bathing
and swimming.
Reference standard:
ISO22810.
158


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