Kiddie phone from Verizon. He is clinging to his 2004 state of the art clamshell phone that is at best a feature phone with no features actually supported any more besides phone calls, calendar, and text messages. In the meantime, I have not one but two Samsung galaxies.
On the one hand, even if I wanted to spy on him, I couldn't. On the other hand, his texts cost him 10 cents each on a grandfathered pre-paid plan, and he certainly can't install or run any kind of app on it. So the few texts he make can be counted in dimes (and he gets grouchy when someone texts him too much as a result) and there's no way to hide them or delete them. I'm not terribly worried either way.