Note: The iPhone 18 is unreleased. All specs below are rumored and unconfirmed; this guide covers expected waterproof options and will be updated after launch.
IP68 vs a Rugged Case: The Difference
A rugged (MIL-STD-810G) case resists drops but is not sealed against water. A true waterproof case is fully enclosed with a built-in screen membrane and sealed ports to keep water out. If you kayak, hit the pool or work near water, IP68 sealing matters more than drop rating alone.
What IP68 Actually Means
IP68 is an ingress-protection rating: the 6 means dust-tight, and the 8 means protected against continuous submersion — commonly to about 1.5 meters for 30 minutes, though the exact depth and time depend on each product's stated limits. Always follow the manufacturer's specific rating.
What to Expect for the iPhone 18
Waterproof cases are precision-molded around each phone's exact shape, so they are usually among the last styles to arrive for a new model. Expect fitted iPhone 18 waterproof cases once dimensions are confirmed. Do not assume a 17-series waterproof case will seal correctly on an 18.
Shop Waterproof Protection at Gorilla Cases
Fitted waterproof iPhone 18 cases will appear in the iPhone 18 Pro Max and iPhone 18 collections as availability is confirmed. To see waterproof designs today, view the iPhone 17 Pro Cases collection.
Waterproof iPhone 18 Case FAQ
Is IP68 the same as MIL-STD-810G? No. IP68 rates dust and water sealing; MIL-STD-810G rates drop durability.
How deep can an IP68 case go? Commonly ~1.5 m for 30 minutes, but always check the product's specific rating.
Do waterproof cases work with MagSafe? Some do; look for a stated magnet ring. Sealing can reduce magnet strength versus a thin case.
Will a 17-series waterproof case fit the iPhone 18? Unlikely to seal correctly unless dimensions match exactly — wait for a case made for the 18.