You can use Titanium Backup to backup messages, call log, browser bookmarks and Wi-Fi settings as well. Contacts can be synchronised with your Google account so you don't need to backup. Just in case, you can also backup your contacts to the SIM card or SD card if I can remember correctly.
Microsoft Certified Professional
Sony Ericsson Xperia Arc S(LT18i) - Unlocked BL(CM11) -> INO 2(4.2.2)
Sony PS VITA PCHJ10001(初音ミク Project Diva F Limited Edition)
1.69 - > 1.80 - > 1.81 - > 2.00 - > 2.02 - > 2.11 - > 2.12 -> 2.61 -> 3.00 -> 3.01
Sony PSP - 2006(Original replaced with 2001 MOBO)
3.60 OFW - > 5.00 M33 -> 5.50 Gen D3 -> 6.60 PRO C