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macrumors 6502
Original poster
Nov 21, 2008
Quick question. I came across this cnet article which seems to suggest that you can use the iPhone's GPS capability to navigate without using data. I'm driving from NYC to Montreal this weekend and plan on keeping my data-roaming off when I cross the border, so I'm curious if this article is really true, or If I should plan on losing my Navigon GPS capabilities the moment I cross into Canada?


macrumors newbie
Nov 23, 2011
The GPS part of the phone will function normally so you won't have a problem there. All the maps are on the phone so you don't need any data connection for that so turn by turn instructions, etc. will work perfectly.

However, if you have added Traffic to the base application that will not work.


macrumors 6502
Jun 10, 2008
I did this exact thing last week (through Canada to New York), and it worked perfectly! Just make sure to download the right maps ahead of time, as mentioned.
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