How does find my iphone work? Is it just GPS or do I need 3G on too?

How does find my iphone work? Is it just GPS or do I need 3G on too?

GPS and find my iPhone work using 3G. If you lose your phone and the person who found it happens to turn it off. You'll never find it.

3G has to be on at all times for GPS and find my iPhone to work

Hope this helps.

The iPhone uses a combination of GPS and cellular signals to determine its position. However, 3G is not necessary. Any cell signal will do, and GPS alone can work even if no cell signal is available.