iOS 7.0.4 - A necessary update or not ?
Apple's official release notes state that the update includes "bug fixes and improvements, including a fix for an issue that causes FaceTime calls to fail for some users."
The update applies to the iPhone 4, iPhone 4S, iPhone 5, iPhone 5c, and iPhone 5s; the iPad 2, third- and fourth-generation iPads, iPad Air, iPad mini, and iPad mini with Retina display; as well as the fourth- and fifth-generation iPod touch models.
Also in November 2013 , Apple released a software update for its Apple TV set-top box. Apple TV software version 6.0.2 is now available for download.
iOS 7 seems to be running smoothly on most iPhone 5 devices which have 1024MB of RAM as opposed to 512MB from iPhone4 and 4S.
Apple announced 7.1 upcoming in the near future so we recommend the owners of iPhone4 and 4S to wait a little bit for the new update to come!
We strongly recommend you back up your iOS device to iCloud or with iTunes before installing any iOS updates.