Eli5 what technology makes some phones water proof and other don’t?

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Curious

In: 1

Answer 1

Basically it is using seals to make the interior of the phone water resistant. Using gaskets around all of the ports, sealing the back and front of the phone. It is not new tech, but it costs more to do it. If you watch a tear down of one, from Ifixit or Jerryrigeverything, you can see how they do it specifically.