Apple has officially announced its latest iPhone model, the iPhone 6. The iPhone 6 will be available in two different sizes, both bigger than Apples earlier iPhones. Apple has been behind the curve of large-screened smartphones for a long itme, but its catching up in a big way with the iPhone 6. The smaller of the two new iPhone 6 models has a 4.7-inch display, which is still notably bigger than 4-inch screen on the iPhone 5 and 5S that preceded it.