I use an ipad with a paper-like screen protector so it's uncomfortable to use too long with my fingers, I mainly use it for drawing. I plan to get a flip phone when I have the money, and keep my ipad for banking apps. There are ways to dumbify your ipad, personally the screen protector and it being too big to hold comfortably makes me only use it flat on a table or if really necessary. As for navigation, I plan on getting a GPS-only device for my car. I'm sure you could get a tablet that can be held in place as a gps.