Apple's iPhone 6 could arrive with a 5.5-inch display and iWatch may have 1.3-inch AMOLED screen

The next generation of Apple iPhone could come in even larger sizes with a 5.5-inch iPhone 6.

Reseach company DisplaySearch has made its forcast for Apple in 2014. It believes we can expect two iPhones, one at 4.7-inches with a 900 x 1600 resolution screen (386ppi) and the other at 5.5-inches with a 1080 x 1920 resolution (401ppi). Both will use the same low-temperature polysilicon (LTPS) LCD screens as the iPhone 5S.

DisplaySearch also estimates that the much talked about Apple iWatch should come equipped with a 1.3-inch or 1.6-inch flexible AMOLED screen. The smaller size will have 348ppi while the larger will be a reduced 278ppi.

The rumoured Apple iPad Pro tablet, at 12.9-inches, would have a 2732 x 2048 resolution screen for 265ppi, predicts DisplaySearch.

It's all predictions right now but a growing screen size is a common trend that Apple can't ignore. As for that iWatch, if we don't see it this year Apple may find itself slipping behind.