Why does my Android phone’s GPS show my position as changed when I haven’t moved?

Anonymous August 22, 2014

Why doesmy cell phone’s GPS sometimes ‘jump’? For example, when I’m sitting perfectly still, it will suddenly show me as approximately 40-50 metres aways (moving away from where I am) and then slowly coming back to my position? Phone is a Sansui Cosmic SP1002, CPU ARMv7 rev 2, running Android 4.2.1 on kernel 3.4.5.

  1. Dalsan M
    August 22, 2014 at 10:46 am

    The A-GPS system built into phones use cell tower triangulation as well as GPS satellites to get the location of the phone. This, along with fewer receivers than a regular GPS device contains, may cause fluctuations in trying to gain a proper location lock. This does not mean that the navigation apps would not have good enough location of the phone, only that phone locator apps would not be precise enough to find the phone in an exact location, only within 20 meters or so if the signals are strong enough. This is normal, though some phones have better precision than others.