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First Apple Phone
This is the first apple Iphone that was released. -
Third generation Iphone
This is the third generation Iphone introduced on June 9 2008. -
Iphone 4
The Iphone 4 was released on June 7th 2010 -
Iphone 5
The Iphone 5 was released n September 12, 2012. -
IPhone 6 Plus
This is the most recent IPhone.
http://www.techradar.com/us/news/phone-and-communications/mobile-phones/iphone-6l-release-date-news-and-rumors-1262803