The response to Apple's iPhone 7 has been lukewarm. Any other smartphone manufacturer would be excited to sell so many phones, but Apple has not seen the same enthusiasm for this device as it has lately. Next year will be a crucial moment for Apple and iPhone; It is the 1
The current rumor is that Apple could watch a larger 5.8-inch OLED panel for iPhone 8 (presumably a Plus model). The current iPhone 7 Plus has a 5.5 inch 1080p LCD. In the case of LCD monitors, Apple has always chosen very nice. However, OLED technology has come a long way in recent years, and is undeniably better. Colors, black levels and response time are noticeably better than LCD.
For the size, 5.8 inches sounds like a big phone. Although it is worth noting that the current iPhone 7 Plus has quite a big frame. A phone like the Galaxy S7 Edge has extremely small fittings in relation to the iPhone. Apple is rumored to be toying with "bezel-less" design, which could deliver a larger screen in the same footprint as the current iPhone 7 Plus. A view of that size will still be a bit uncomfortable, so it's all about going down to ergonomics and palm rejection (display ability to ignore accidental touches). Reports also indicate that Apple may look like using a curved OLED panel, a design by Samsung.
Whatever Apple has, we'll find out in the fall of 2017. Even though the way the latest Apple devices have leaked, you may not be able to wait a long time to get a good idea.