The iPhone has gone through radical, one could even say, revolutionary changes from 2007 to 2014. While the overall experience has remained fairly unchanged (for the most part), so many new features and visual improvements have been added in the past decade that it would probably be quite a big letdown if your iPhone suddenly reverted to iOS 1 today. But don’t take my word for it! See for yourself below.
Featured photo credit: iPhone/wicker_man via flickr.com