As explained by AppleInsider and 9to5Mac, the analyst notes that this presumed OLED iPhone with its $1,000+ price tag will be similar in size to the current 4.7-inch iPhone. However, instead of the home button, it will include a "function area" that can also display controls for video or games.
That would keep it matched in style with the recently released MacBook Pros and their OLED TouchBar, and, the analyst says, reduce the screen size used for everything else to about 5.15 inches. Last year the New York Times reported that the next iPhone would ditch the home button for virtual buttons built into the screen, and this rumor explains how all that could work. Losing the home button could indicate a lack of Touch ID, which could be replaced by a fingerprint reader embedded in the display itself, or other biometric technology like face recognition.