Anyone have solid specs on GPS accuracy with iPhone and the iPad?

 

Anyone have solid specs on GPS accuracy with iPhone and the iPad?

I get same as my Nuvi

my iPhone resolves down to 3 meters most of the time in my living room... as does my Wifi iPad with a BadElf GPS receiver attached - same as my Nuvi765t. The hardware is fine - the drawback on both is apps. Navigon is workable - I guess I'm to used to Nuvis and finding in hard to like something else - Garmin's app does not load full maps to the device, Navigon's does.

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*Keith* MacBook Pro *wifi iPad(2012) w/BadElf GPS & iPhone6 + Navigon*

Apps

The Magellan RoadMate app also loads full maps (although dated) - a little more like Garmin style navigation. However the app is going through the usual growing pains of poor address resolution/recognition, et al.

My AT&T and VZW iphones (each have different gps hardware) and iPad w/internal gps have similar resolution as stated previously.