Following up the Galaxy S III is hard to do. Samsung’s flagship of yesteryear sold wildy, selling more than 50 million units in less than a year. Just as updating the iPhone is tough for Apple, updating the Galaxy S is hard for Samsung. Rather than opt for a near-total redesign like the last two updates, Samsung has decided to incrementally improve upon the GSIII, at least on the hardware side, much like the jump from the iPhone 4 to 4s; what you get is the Galaxy S4. With stiff competition from the likes of the HTC One, is this “small” upgrade enough to keep Samsung on top of the Android heap? Read on to find out.