IP68 offers the highest water resistance for smartphones

Many modern smartphones, including the iPhone 16 Pro and Galaxy S25 Ultra, have water resistance ratings like IP67 and IP68. These ratings indicate how well a phone can resist dust and water, with IP68 offering the highest protection. The iPhone 16 Pro can withstand submersion in up to 6 meters of water for 30 minutes, while the Galaxy S25 Ultra is rated for 1.5 meters. However, users should avoid swimming with their phones, as movement and chemicals in water can increase the risk of damage. Phones without an IP rating may still have some water resistance but should be treated with caution. It's best to keep these devices away from water to prevent potential damage.