The iPhone models that are waterproof or water-resistant are:

• iPhone 7 and 7 Plus: These models have a rating of IP67 under IEC standard 60529, which means they are splash, water, and dust resistant for up to 1 meter deep for 30 minutes.

• iPhone 8 and 8 Plus: These models have the same rating as the iPhone 7 and 7 Plus, which is IP67.

• iPhone X, XR, XS, XS Max, and SE (2nd generation): These models have a rating of IP67 under IEC standard 60529, which means they are splash, water, and dust resistant for up to 1 meter deep for 30 minutes.

• iPhone 11, 11 Pro, 11 Pro Max, 12, 12 mini, 12 Pro, 12 Pro Max, 13, 13 mini, 13 Pro, and 13 Pro Max: These models have a rating of IP68 under IEC standard 60529, which means they are more water-resistant than the previous models and can withstand being submerged in up to 6 meters of water for up to 30 minutes.

Its important to note that water resistance is not a permanent condition and can decrease over time due to normal wear and tear. Liquid damage is not covered under warranty, but you might have rights under consumer law. To prevent liquid damage, its recommended to avoid exposing your iPhone to pressurized water or high-velocity water, such as when showering, water skiing, wakeboarding, surfing, jet skiing, and so on. Its also recommended to avoid intentionally submerging your iPhone in water and operating it outside the suggested temperature ranges or in extremely humid conditions.