Well in my opinion I think iPhone 4 to iPhone 5 was a HUGE update. I mean it was the best and most stable phone of 2012. It may only been 4 inch of screen but it was a fantastic size for one hand use.
The camera got a huge update..
Double the ram
improved facetime and also faster shots.
A6 was a major improvement from the A4
LTE
and of course...iOS 6 which imo was the most stable iOS ever....EXCEPT the whole Apple maps disaster.
I don't feel the iPhone 6 is a huge improvement from the 5
The only big one was the touch ID but that is it. Besides the 6's 4.7 screen.
----------
Excluding the iPhone 6 plus...
The camera got a huge update..
Double the ram
improved facetime and also faster shots.
A6 was a major improvement from the A4
LTE
and of course...iOS 6 which imo was the most stable iOS ever....EXCEPT the whole Apple maps disaster.
I don't feel the iPhone 6 is a huge improvement from the 5
The only big one was the touch ID but that is it. Besides the 6's 4.7 screen.
----------
Excluding the iPhone 6 plus...