iPhone Tracking Question

martosprint

macrumors 6502
Original poster
Jun 1, 2010
337
15
Florida
When tracking my iPhone it works pretty accurately, but what I want to know is what is that large green circle that encompasses the phone sometimes? It's not showing all the time just sporadically. I just want to know what that green circle around the phone is all about.
thanks for a reply
 

draver

macrumors newbie
Feb 15, 2015
16
1
I believe it defines an area where there is a 95% probability of the device location.
 

Newtons Apple

Suspended
Mar 12, 2014
22,764
14,918
Jacksonville, Florida
Like Draver said it is an early GPS fix showing the approximate location. As more GPS satellites are registered the circle gets smaller and smaller as the GPS fix drills down to your exact location. With enough time and open sky to get multiple satellites, you can get located within feet of your actuall location.

Just a reminder that you also need maps via WiFi or cellular for the complete GPS experience.