Magellan eXplorist 710 US GPS

Magellan promised lifetime Map updates for my 2230T-LM that I bought on Woot. Some freeways haven’t been updated after Four years! The arrow shows my car in an open field. I use Google maps on my phone most of the time. And Yes, I do try to download the updates constantly.

From the specs I get the impression that this can be used for auto navigation as well as hiking and geocaching. Is this correct? Sometimes my iPhone doesn’t get a god signal. Of course this happens when I am trying to go around a temporary road blockage or accident.