Originally Posted by
s0ssos
No. It is not a weakness in the phone's GPS. It is actually a problem that the GPS is too accurate and google thinks it can rely on it.
There are always margins of error.
Suppose you're an engineer designing mapping software. You get information about the accuracy of the devices your software is going to run on. You find quite a wide variance in the numbers; most devices are nearly always accurate to within twenty meters, but some devices' accuracy is sometimes no better than a thousand meters. (This latter case describes a condition my previous phone sometimes suffered.)
You want to provide timely turn-by-turn directions. What level of accuracy should you design for?