Zeeshan Mir Baz has collected the information from this website:https://www.bestproducts.com/tech/electronics/g3138/water-resistant-waterproof-smartphones/ in this article said that: Some say electronics and water don't mix, but that's not the case with these waterproof smartphones. They're covered with a water-resistant coating that protects them against rain, sweat, spills, or a tumble in a puddle. Their water resistance is categorized with a rating determined by the International Electrotechnical Commission (IEC). The most common ratings you'll come across are IP67 and IP68. Smartphones with an IP67 rating are fully protected from dust and can withstand being submerged in 3.3 feet of water for up to 30 minutes. IP68 means the phones can be submerged in 5 feet of water for up to 30 minutes. Most manufacturers claim their devices are either water-resistant or waterproof. Water-resistant means the smartphones can survive small splashes of water, rain, ...
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