What is the "Other" data on my iPhone? I'm up to 7 gigs of it

Normally, the "other" includes the iOS, messages, and app data. If it's > 1 GB, there may be corrupted data or metadata error. To get rid of it, Restore the phone in iTunes using a backup. If not significantly better, you may have to restore as new, without using a backup.

iTunes: Restoring iOS software

There's no such thing as insufficient space to restore, since the process deletes all data from the phone. You may get this error when trying to restore a backup - in this case it indicates corrupted data in the backup and you'll have to restore as new.

Follow the instructions in the support article I linked for you/

I got the answer off another thread I was reading. Just trying to spread it around now.

Go to:

Settings>General>Usage

Now for me, I have about 6GB of music on mine. What I did was select music, Now Left swipe the All Music row and press delete. After that I opened up my phone on iTunes and synced it like normal. The other data was gone after that.

Hope this helps everyone!

Not only are you responding to a dead thread (8 months), but your suggestio to delete music is irrelevant to the topic of excessive ""other" data.

I did find out this will delete your music so you'll have to resync the music on there. I didn't notice it at first because the music is still listed. Now in reply, I'm responding so the information is out there. I found this thread by googling, I'm assuming other people will as well. If the problem of large amounts of other data was easy to fix than I wouldn't imagine there would be so many posts about it. It doesn't make sense at all.. but that worked for me.

Deleting music and re-synching doesn't remove "other" data. As already explained in this thread and countless others, it is easy to remove excessive "other" data by restoring the iOS.