tablet/ipad for navigation

Do you find the J3 screen size to be too small? I was looking at the specs and it looks pretty good as far as specs.
Well it is definitely not the biggest phone out there but it is adequate for what I am using it for. I have it mounted up high on the left of the steering wheel so I can see it pretty well. For $49 on sale I couldn't pass it up and chose it over a slightly bigger phone that was almost double the price