The navigation arrow is always late compared to the actual location. its late around 3 to 4 seconds and I have tried on the two different iPhones that with the same result I reset location settings I reset the phone but no luck.
does anybody have the same problem and any ideas how to resolve them?
Apple uses AGPS for native GPS-lock improvements, and Wi-Fi network and cell tower locations are additional factors in providing a fast initial connection along with improving GPS accuracy.
Cellular carriers have extremely precise GPS measurements of the locations of all their towers. With a database of such towers, they take measurements of the signal strength of those within range—which may be dozens—and trilaterate to find an area that overlaps among them. (Trilateration involves overlapping regions to find an intersecting area; triangulation uses the measurement of angles to find a center point.)
But cell towers are too far away from one another to provide GPS-like precision, and they don’t work well in less-populated areas, even suburbs, where less coverage is necessary than in an urban environment.
iPhone map navigation are not accurate compared to the actual location
