I have a problem. I own a smartphone – an iPhone 5 – that comes with a nicely sized, 4-inch screen. When I surf to Web sites, I’m able to see whatever I want. When I go to the iTunes Store and buy a movie or two, I can enjoy them without any trouble whatsoever. For me, the 4-inch screen is an ideal size. Then again, I thought the same with my former iPhone, which came with a smaller 3.5-inch display. I thought for sure that I wouldn’t need a larger screen. But when I got my hands on the bigger display, I decided otherwise.