I saw this post on another site I frequent in an Android thread, if true this is badass
"Had an eventful week with my S7 Edge.
I was tubing down a river last Friday and dropped my phone at the very end (the deepest part of the river with the strongest current, unfortunately). We dove for it but weren't able to find it and I didn't have any signal where the river was so I couldn't call or use Find My Phone, so the next day I filed a lost phone claim and got a new one shipped out to me. Thought I had lost all my pictures, my 64gb SD card, and my 10 day old Spigen case. with it.
Two days later I get an email from people who were diving in the river who had found my phone, charged it, and it was still working (thankfully I put my email address on the lock screen)! It had a tiny scratch on the screen and the speaker was garbled at 50%+ volume, so I decided to keep the new replacement phone.
Day after that, I read online that a garbled speaker in a waterproof Samsung phone is somewhat common and only a temporary problem, so I put it in a bag of rice for a full day and now it's working perfectly! Just a small scratch on the screen after being 8-10 feet deep in a rocky river for nearly 2 days is pretty impressive."