I have a little understanding of GLONASS receiver and together with GPS, it's more accurate than the phones equipped only with A-GPS. Here you have a video which compares A-GPS only iPhone 4 with ...
I plan to go hiking in an area where I do not anticipate there being much cell coverage at all. What there is will likely be very spotty. I would like to use the All Trails app to track my progress ...
I was under the impression that the iPhone received timestamps along with GPS location data. While I can't say its not true for the internal database, it seems to be for the EXIF data attached to ...
Has the GPS chip been upgraded in the iPhone 4S? How does it compare to the 4 and 3GS? As I understand it the GPS in iPhone 4 is much better than that in the 3GS.