People can babble about water proofing, etc. There is no legitimate engineering problem.
Even if it was a legitimate problem, it’s sad that only about half of the phones are certified waterproof even if almost all are sealed.
Why is that sad? I can understand why companies don’t want to pay just to get a certification when the phone itself is up to standards regardless
“It’s easier to make the phone waterproof if the battery is not user-serviceable” is a common argument; if it’s really true, way more phones should be waterproof even if not IP-certified (which understandably costs money and raises the end price).
Samsung Galaxy S5 would like to have a word. IP67 while having user-detachable battery cover.