The IP Code, which stands for International Protection Marking but is also commonly known as Ingress Protection Marking, is maintained by the International Electrotechnical Commission, and gives consumers a shorthand way to understand their device's resistance to various types of damage.
The first digit refers to solid object ingression protection (from damage caused by your fingers to particles of dust), and ranges from zero to six. The second number refers to the water resistance of the device and ranges from zero to nine.
No current smartphone on the market is "waterproof," as none are completely impervious to water damage.
All models of Samsung Galaxy phone dating back to the S7, and including the new S10 models, have the same IP68 rating - meaning these phones can withstand being submerged in up to 1.5 meters, or nearly five feet, of water for up to 30 minutes.
The IP68 rating is applied to a new phone in perfect condition. Real-world conditions (using the phone, e.g.) can compromise its dust and water resistance. A crack in the case or a worn down seal around cord connection points could both create a potential entry point for water that could ruin the phone.
Also keep in mind that when the IP Code refers to water, it means fresh H2O, not salt water. And not other liquids, either, such as oils or fuel or certain beverages that could be corrosive.
Any Samsung Galaxy phone released prior to the S7, which came out in March 2016, does not feature an IP rating and thus is not water-resistant.
So your phone is water-resistant! Great news! But what if it suffers from water damage anyway, after the waterproofing measures fail or a crack in the case allows water into the phone - are you covered by Samsung's warranty?
Yes, your Galaxy S10 will probably do just fine if splashed or even submerged, and you can use it in the drizzle without much concern. But if the waterproofing fails and the phone is damaged or destroyed, it's time to get out your wallet, not your Samsung policy paperwork.
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