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by algaeontoast 2578 days ago
Sauce: https://www.idownloadblog.com/2014/03/05/iphone-5s-m7-tracki...

I was driving through rural Kentucky shortly after the 2017 eclipse.
2 comments
mjlee 2578 days ago
It doesn't really matter how rural the area is - GPS works pretty well outside of the polar circles. AGPS does use data connection to accelerate first fix time, but will be accurate after that without data.
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quenstionsasked 2578 days ago
This link just says that the M7 is still active after main phone has shut down. Nothing about inertial navigation.
link