According to Nikkei Asian Review today, Apple's 2017 iPhone family (which may be called “iPhone 8” rather than “iPhone 7s”) will include three models, adding a brand new five-inch form factor to the mix. All three models of the iPhone 8 should boast refreshed industrial design.
The overhauled phones would be sandwiched between two pieces of chemically hardened curved glass—like KGI's Ming-Chi Kuo predicted in a report to clients.
Both glass backs and cover glass for the iPhone 8 will be supplied by China's Biel Crystal Manufactory and Lens Technology, an industry source told the publication. The glass front and back will be held together by a brand new metal frame, but Apple is said to have yet make a final decision on the design of the metal frames.