Knowledge sharing: Why are smartwatches with IP67 or IP68 ratings not recommended for swimming?


While smartwatches often carry water resistance ratings such as IP67 and IP68, these ratings do not mean the devices are fully suitable for underwater activities, especially swimming.Reasons as below:

1.**Test Conditions VS. Real Use**: IP67 and IP68 ratings are obtained through laboratory tests that involve submerging the device in still water for a short period or to a certain depth. However, swimming involves dynamic water pressure, temperature fluctuations, and exposure to chemicals (e.g., chlorine in pools), which are far more complex than lab conditions.


2.**Water Pressure and Depth**: During swimming, the watch faces varying water pressures from movement. Even in shallow water, rapid wrist motions can create pressure levels much higher than those tested for water resistance ratings. IP68 typically ensures water resistance at a specified depth (usually 1-2 meters) for a limited time (e.g., 30 minutes).


3.**Chemicals and Corrosion**: Pool water contains chlorine, and seawater has salt, both of which can degrade the seals or corrode the case of the watch, reducing its water resistance over time.


4.**Temperature and Seal Degradation**: Changes in temperature and natural aging of materials can affect water resistance. Hot showers, saunas, or high-temperature water can damage the seals. Even an IP68-rated watch may lose water resistance if repeatedly exposed to such conditions.

In summary, while these smartwatches can handle everyday splashes or brief water exposure, extended submersion or swimming may cause water damage or compromise the device. To maintain your watch's longevity, it is best to remove it before swimming or bathing