Why do iPhones always have rattling in them? Loose parts? Should be worried or no? Works fine! All of the ones I've had has that?

Why do iPhones always have rattling in them? Loose parts? Should be worried or no? Works fine! All of the ones I've had has that?

I've never had an iPhone that has problem. Only seen it once in my sister's phone and that's because she dropped it

None of the ones I've had have had that

That's your brain rattling around in your skull.

I've personally owned six iPhones now and have professionally issued and replaced about six hundred or so over the last two years at work.

I've noticed none which rattle, and have had no complaints from users of that problem. I can't recall any of the one hundred or so which have been sent back with other faults which have rattled: even when they've had badly shattered screens.