For me waterproof or water resistance is a myth
No. I disagree.
Samsung makes some solid water proof phones.
I personally have used Galaxy S5, it was immersed into swimming pool and even beach. Till date it works absolutely fine without a minor glitch. So, for a fact I know this is not a myth.
But, iPhone got screwed without immersion in water, just by taking it out in the rains. They knew that iPhone cannot last in water, they had very few updates on it over 6s and hence to lure customers they added this water-resistant thing. If they were confident of their own manufactured phones, they would not keep the clause of water damage not being considered in warranty.
They asked me to replace my 2-month old phone saying it's damaged in water. Asked me to pay approx 70-80% of the actual cost to get it replaced.
All I did was switched it off for few days, and now it's working fine. Although it has a small yellow patch at bottom of screen, but I will not go to Apple care for it because again, as always, they'll not even consider fixing it, but will ask me to get it replaced.