5 Replies Latest reply: May 29, 2011 1:29 AM by modular747
-_iCeMaN_- Level 1 Level 1 (0 points)

Hello i got a 32gb iphone 4


As i go to the setting I saw that the


Capacity is only 29.1GB?!?!!


then suddenly the


Available is only 28.8GB?!?!



Hows this happen? where are the missing 3.2GB? Can someone explain too the diferrence between Capacities and Available? I am willing to give points for the correct answer. Thanks!

iPhone 4, iOS 4.3.1
  • modular747 Level 6 Level 6 (18,090 points)

    1. Capacity:  Like all other memory storage specs, the capacity is rated in terms of "decimal" bytes where 1 GB = 1,000,000,000 bytes. Thus 32 GB = 32,000,000,000 bytes However, all computers function on binary math where 1 KB = 1024 bytes, 1 MB = 1024 KB, 1 GB = 1024 MB


    So... the 32,000,000,000 byte rating of your 32 "GB" phone is only 29.8 real, binary GB!  Additional loss comes from overhead such as formatting and the iOS.  29.1 GB capacity is the same as my iPhone.


    2. Available:  This is the free memory left after everything  taken up by all your apps, music, media, data, settings, etc. are deducted.  The more you add to the phone, the less is available.

  • -_iCeMaN_- Level 1 Level 1 (0 points)

    Very nice! So the cap will stay 29.1 and the one who decreases is the available right? Why do apple say it was 32GB they must put 29GB only lol

  • modular747 Level 6 Level 6 (18,090 points)

    Yes, the capacity will remain the same, (though it may change slightly with different iOS versions), and availability decreases the more you add to the phone (and increases if you delete stuff). 


    ALL storage devices are rated and marketed by the decimal method and ignore formatting overhead - all hard disks, RAM, thumb drives, etc. - by ALL manufacturers.  Bigger numbers sell better than the truth....

  • -_iCeMaN_- Level 1 Level 1 (0 points)

    I got another question. I have no wifi in our house to play Game Center. Can this be my solution alternative? Connect my iphone to my PC (Which is connected to the internet). Then play game center while the iphone is connected to the PC? Its like sharing net connection lol is it allowed?

  • modular747 Level 6 Level 6 (18,090 points)