Charles' daughter got a Gear Fit 2 Pro smartwatch and it was advertised to be used for swimming laps. The first time she used it, it stopped working immediately. He sent it back and Samsung is now saying since it's water damaged, and can't be fixed. Leo says there's a few tricks they can do:
Tommy wants to know if he could waterproof a phone and bring it into the water and use it as a camera. Leo says that there are water resistant phones, but he'd have to really understand what that means. IP ratings will tell just how water resistant it is based on 30 minutes in 1 1/2 meter of water. But that's in ideal conditions, too.
Dave wants to know what phone would be better: the Sony Xperia Z3 or the Samsung Galaxy S5. Leo says that the S5 is waterproof like the Z3, but it has a better camera. Leo adds that TWiT staff have tested the S5 and it's pretty good. There's a test video of a third party testing both phones here.