The following excerpt is taken from The Next Web's September 30th news article, "The videos showing the iPhone 6s as ‘waterproof’ don’t help much in the real world." The article discusses the recent buzz on social media, and YouTube in particular, about the high water resistance of the iPhone 6s. You've been warned - water resistant does not mean waterproof.
"A few videos have surfaced over the last few days, apparently showing the iPhone 6s to be considerably more water-resistant than anyone might have thought.
See, there’s another one below. It purports to show an iPhone 6s and 6s Plus being left in bowls of water for more than an hour without any visible harm. That’s pretty impressive if the video is legit, but it isn’t a reason for you to try and re-enact it yourself."