What are the hottest smartphone right now in the market? Undoubtedly, iPhone 4S (yes, it’s still hot, because iPhone 5 isn’t available yet) and Galaxy S III. Between these two, iPhone 4S was launched in October 2011 and Samsung Galaxy S III was launched on May 2012. Since the launch of iPhone 4S, the device has been on top in selling in U.S. each month. But recent report says, Samsung Galaxy S III was sold more in August 2012 in the U.S. than iPhone 4S. That is, Samsung Galaxy S III was the top-selling smartphone in the U.S. in August.