My mom with Alzheimer’s adores her kindle fire. She sleeps with it. It is filled with romance novels and she just reads them one after another and repeats them. When she walks by it she grabs it like a stuffed animal. And sometimes when she goes to someone else’s house she wants to take it with her.
I don’t have a smartphone but I’ll take my kindle fire in the car when we go out running errands or I have to wait in a doctors office lots of free wifi around.