Originally Posted By: NAro
You probably know this... but FWIW: don't count on the phone's GPS if you don't have data or wifi connection. I'm not aware of any of them that actually communicate with the satellites on their own, like a dedicated GPS.
This is an urban legend, and not correct. While some of the very early smartphones needed a cell connection to compute a location, more up to date models are fully capable of finding your position completely independent of cell connection.

I live in Alaska, where cell coverage is spotty to non existent once you get out of town. I'm currently using an iphone 4 (hardly the latest model), and I have used it many times to get a GPS fix while out of cell range. On several occasions while out of cell range, just for fun I have taken simultaneous readings with both my iphone and my Garmin GPS. The iphone is always spot on with the Garmin.
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