I was at a pool party in Las Vegas not too long ago and saw several guys in the water pull a Samsung out of the pocket of their swim shorts (trunks?), use the p

I was at a pool party in Las Vegas not too long ago and saw several guys in the water pull a Samsung out of the pocket of their swim shorts (trunks?), use the phone, and put it back in their pocket as if they were wearing jeans. I finally asked one of them wtf he was doing (I was always under the impression it could survive an accidental dunk in the water, not be used in the water) and he insisted it was totally waterproof “like a GoPro” as long as it was above a certain depth.