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Care guide

Waterproof case care: the seal check we do before every swim

An IP68 case keeps water out only when every seal is closed. The good news: checking takes two minutes, and it is the same routine we use in our own testing.

This guide covers our waterproof cases for iPhone 18 Pro Max, 18 Pro, 17 Pro and 15, and Pixel 10, 10 Pro and 10 Pro XL.

BeforeDuringAfter
Dry-test the empty case in a sinkUse the volume button as a shutterRinse in fresh water
Close every plug until it clicksKeep dives to 2 m, one hour maxDry fully before opening
Remove old screen protectorsAvoid hot springs and high-speed jumpsCheck seals for sand
  1. Test the case empty

    Close the empty case, sink it in a basin with a coin inside for weight for ten minutes, then open it and check for drops.

  2. Fit the phone on a dry surface

    Take off any old screen protector, set the phone into the back half, then press the front frame on all the way around until each clip clicks.

  3. Close the port and plugs

    Push the charging-port flap in until you hear the click. Run a finger around the edge: it should feel flush everywhere.

  4. Rinse after salt and chlorine

    Salt and chlorine dry out seals. Rinse the closed case under a tap, then dry it before opening.

  5. Re-enroll your fingerprint

    The built-in screen protector changes how the sensor reads your finger. Add your fingerprint again after fitting.

Two minutes of checking buys an hour under water. Every time.