If you do not use icloud, or have run out of space and do not want to pay for additional storage, you can use a utility called MobiMover. It will scan and then save your entire iPhone data unit to the computer. The folder is placed on the desktop and is titled “Exported by MobiMover(then the date).
Open that folder and you will see subfolders with the data within. Note: If you use a web mail account, such as AOL, Gmail, etc, then the contacts and other data will not be stored here as it is stored on the web mail server.
Click this link to download and save your iPhone data!