IOS 6 storage space on iPhone?

I have a 16 GB iPhone 4 with about 5.5 GB of storage left on my phone. I've been thinking about updating my iPhone but I read that it takes up like 2 GB of storage on the phone and I don't want to update just to be left with only 2-3 GB left. Is this the case? Will I get that space back when the download is over? I'm just curious.

What is taking up all that space? You don't need 1000 songs or videos on your phone, offload 80% of them to the computer

  • Why is my iPhone storage space used so high? I have a 16GB iPhone 4s. I have no songs or videos on it. I have about 32 apps and 500 pictures. My storage space used is at 13.2 GB. Why is that so high? That is almost all of my available data? How can I bring this down? I have a friend with the same phone, same number of pictures and about the same number of apps (maybe a few less) and his storage is only about 4GB used.
  • Why does my iPhone say that I have no storage space? I deleted so many apps and it still says that I have no space. I can't take pictures, download apps, nothing. I've tried turning it off and on and it says the same thing. What can I do to fix it? I'm trying to do everything I can't to restore it.
  • My iPhone suddenly went from having 9.4 gb of free space to 7.5 gb of free space? I didn't download any apps or anything, or record any videos or take pictures. I didn't do anything, it just all of a sudden happened today. How can I fix it? I have a 16gb iPhone 5
  • Is the iphone a good phone to have? How is the battery life and storage space? I might be getting an iphone soon and I was wondering if they are good phones to have. I will probably get the 5. How is the battery life and storage space? I just don't want to spend the money and then be dissapointed: P