Water resistance refers to the ability of an object, such as a watch or electronic device, to withstand exposure to water without being damaged. This feature is often measured in meters or atmospheres, indicating how deep the object can be submerged or how much water pressure it can handle. Many products, like smartphones and watches, come with water resistance ratings. For example, a device rated at 30 meters can handle splashes and brief immersion in water, while a rating of 100 meters means it can be used for swimming. However, water resistance can diminish over time, so regular checks are recommended.