The Galaxy S IV may look like the S III, but there's one big, glaring difference: the bigger display. In place of the 4.8-inch screen there's now a 5-inch Super AMOLED unit that sports a full 1080p (1920x1080) resolution with 441 pixels per inch. We've yet to see it in person, but all reports we've read say it's one of the best smartphone displays on the market with rich color reproduction and more than ample brightness.