It is believed that the Cupertino company will launch three new iPhones models this year: among them the upgrade of the 4.7-inch iPhone 7s, the iPhone 7s Plus 5.5-inch and a new premium model with a wrap-around OLED screen 5.8 inches (diagonal) with an active screen area between 5.1 and 5.2 inches.
Apparently only the iPhone 8 will feature a new design with a glass chassis while the 4.7-inch smartphone would still use an aluminum alloy chassis like the previous iPhones.
The iPhone 8 will adopt a glass chassis reinforced with a stainless steel frame . While upgrading the 4.7-inch iPhone 7s would use an aluminum alloy chassis. The chassis design for the iPhone's 5.5-inch Plus is not yet confirmed.
The stainless steel frame for iPhone 8 will be supplied by the manufacturer Foxconn and Jabil Circuit (USA). The aluminum alloy chassis for the 4.7-inch iPhone 7s will be supplied by Catcher Technology, which has been building unibody housings for Apple smartphones and tablets for years.
Since Catcher Technology was previously said that its 2017 revenues will see significant year-on-year growth, an indication that the company has signed a lucrative contract for Apple's upcoming iPhone.
KGI Securities analyst Ming-Chi Kuo predicted in April 2016 that the iPhone 8 would be composed of a unibody aluminum housing in conjunction with a glass enclosure and a wraparound AMOLED panel, protected by a 2.5-inch D curved at the front .
He later added that there was "a growing likelihood" that the 2017 iPhones would have the entire front and back of the glass, with a high-end iPhone 8 possibly adopting a stainless steel metal structure instead of aluminum.