iIf you're not familiar with KGI Securities' examiner Ming-Chi Kuo, he's the one that anticipated that Apple is preparing three new iPhones for 2018 - two OLED ones with 5.8-inch and 6.5-inch boards, and one LCD iPhone with a 6.1-inch screen.
Indeed, a similar market examiner now says that Apple could send up to 100 million 6.1-inch LCD iPhones before 2018 is finished and at $700-$800 a pop.
In the event that the expectations are genuine the 6.1-inch LCD iPhone will supplant the iPhone 8 as the least expensive alternative, while the 5.8-inch OLED iPhone will probably be an indistinguishable size and weight from the iPhone X, and the 6.5-inch OLED iPhone will be the iPhone X Plus that hardcore iPhone Plus fans are sitting tight for.
Some trust that the 6.1-inch LCD iPhone will need Face ID and 3D Touch and will accompany less RAM to keep value lower.
Others trust that every one of the three 2018 iPhones will have 19.5:9 shows and Face ID.