Smartwatch Water Resistance Risks: Avoid Swimming Damage

Wearing a smartwatch while swimming may be riskier than many users realize, despite manufacturer claims of water resistance. Experts warn that ratings such as 5ATM or IP68 do not guarantee full protection, particularly in real-world conditions like saltwater or chlorinated pools.

These ratings are based on controlled laboratory testing, not the dynamic environments encountered during actual use. Factors such as water pressure from movement, temperature changes, and prolonged exposure can compromise seals and allow moisture to enter the device. Over time, even small amounts of water intrusion can lead to corrosion, internal damage, and eventual failure.

One widely cited example involved a Samsung Galaxy Watch 5 Pro, which experienced severe internal corrosion after being used in seawater. Despite its high water resistance rating, water reportedly entered through small openings such as microphone ports, leading to rust and malfunction. The case highlights how vulnerable certain components can be, especially when exposed to salt, which accelerates corrosion.

Chlorinated pool water presents its own risks. Chemicals used to maintain pool hygiene can degrade protective seals and gaskets, weakening the watch’s resistance over time. Repeated exposure increases the likelihood of damage, even if the device initially appears unaffected.

Manufacturers typically include disclaimers in their guidelines, noting that water resistance can diminish with age, wear, or physical impacts. Scratches, minor cracks, or everyday wear and tear may reduce a device’s ability to keep water out. As a result, devices that once met resistance standards may no longer perform as expected.

While some smartwatches are marketed with swim tracking features, users are advised to exercise caution and understand the limitations. Rinsing the device with fresh water after exposure to salt or chlorine may help reduce long-term damage, but it does not eliminate the risk.

For those concerned about preserving their device, it may be safer to avoid wearing a smartwatch during swimming altogether and instead estimate workout metrics afterward. Alternatively, using dedicated waterproof fitness trackers designed specifically for aquatic environments could offer more reliable performance.

As smartwatches become more advanced and expensive, understanding the difference between water resistance and true waterproofing is essential. In practice, these devices are built to withstand splashes and brief exposure—not extended or repeated immersion in harsh conditions.