On Wednesday, May 13, 2015 at 2:34:37 PM UTC-4, bob_villa wrote:
On Wednesday, May 13, 2015 at 11:29:40 AM UTC-5, J0HNS0N wrote:

...if you use the right map app (Google or CoPilot for example) most of
the other map functions will work without cell service and are quite
handy when hiking and camping in the wilderness.

Since they're not a receiver of a GPS satellite signal...how could they give your position without interface to a cell tower?

Smartphones do have a GPS receiver built in.