The iPhone 5s: the 4-inch 1,136x640 display on the 5S could be expanded to a 4.7-inch 1,600x900 display, according to a DisplaySearch forecast.
DisplaySearch has released a forecast covering new display tech in 2014, which includes speculation about screens that may arrive on the iPhone 6, iWatch, and tablets.
The researcher sees at least two iPhone 6 possibilities as upgrades from the iPhone 5S' 4-inch 1,136x640-pixel resolution (see chart below).
At the high end would be a 5.5-inch 1,920x1,080 display based on LTPS (low-temperature polysilicon) LCD -- the same technology used in the 5S.
If accurate, that means Apple would get closer to the resolution on the Samsung Galaxy S4 -- which is a 5-inch, 1,920x1,080 display. That's where any similarities would end, though. The S4 uses Samsung's radically different Super AMOLED tech.