iPhone 5? Here are the best uses for your old iPhone.

Here are 11 good ideas for an 'obsolete' iPhone:

4. Upgrade your car with a permanent GPS device

  • close
    Phil Schiller, senior vice president of worldwide marketing at Apple Inc, speaks about iPhone 5 pricing during Apple Inc.'s iPhone media event in San Francisco, Calif., Sept. 12, 2012.
    Beck Diefenbach/Reuters
    View Caption
  • About video ads
    View Caption

Your old phone can be installed in your car using a suction-cup mount and used as a permanent GPS navigation device. Several apps in the iTunes store will give you turn-by-turn directions out loud, but you'll need to be sure that you buy an app that includes map data. An app that depends on a network connection will be of little use when you're on the open road, away from Wi-Fi. TomTom's app has been well-reviewed, and its telltale file-size (1.3 GB) indicates that it comes with all its own maps.

4 of 11