Understand the difference between water "resistant" and water "proof." Decent explanation: When it comes to the electronics industry, when a product is labeled as water resistant, it means that the product can withstand the entry of water in normal situations like rain and snow. But these must not be taken out in heavy rains or submerged in water. If the product is water proof, it means that it can be submerged in water. The underwater camera cases, swimmer’s watches, and the like are water proof products. A water resistant watch can be used while cycling in the rain, fishing, and even in your normal day to day activities. A water proof watch can be used in your day to day activities as well as underwater diving and swimming.