> and justify to my wife a move up from my iPhone 5S...
iPhones beyond the 5S are waterproof, which enables photographs like
this one
http://reid.org/~brian/images/IMG_5599.jpg
(My granddaughter Jordyn is offering advice in a game of swimming pool
Calvinball.)
or this one
http://reid.org/~brian/images/IMG_4311.jpg