An iPhone's screen is just too small to do justice to good photographs and off line storage is cheap. A 5TB LaCie hard drive is $169.95 from Apple. And an 8TB d2 is $254.95. You can get a nice Mac(book) and a 27" screen and see your kids much better.
You can also connect a 75" OLED TV for the price of a 2TB iPhone and stealing the pics would be much harder.
You can also connect a 75" OLED TV for the price of a 2TB iPhone and stealing the pics would be much harder.