said by zeddlar:Google maps has a feature where you can download the maps of an area. So if you do that you wouldn't be using any data. The GPS doesn't use data. Only the mapping aps do.
The problem for me with the family share plans is that I have a teenage boy on my service and unlimited minutes doesn't matter, unlimited texts are a good thing but limited data is a real problem. I have to use the navigation features of my phone with my job which uses data and my son uses alot of data so we would have to get one of the higher tiered plans and that is where the costs really go up over the current unlimited data plans. For thos that can have 3 or 4 devices connected and get away with 2 or 4 GB per month then these plans are ok I guess, but when you have to use one of the higher plans then the price differance really jumps. And before anyone yells buy a GPS, I can't afford one atm for one and the google map navigation application is way more dependable in the rural areas where I run for another.