Apple, it's said, will finally take the plunge into large-screen phones next week with the unveiling of both a 4.7- and a 5.5-inch iPhone at its event in Cupertino, California. If the public isn't sure why, they only have to look at what Samsung revealed today. In a three-city event held in Berlin, New York and Beijing, Samsung went all-in on the phablet. The Samsung Galaxy Note 4, which sports a 5.7-inch screen, is the most sophisticated smartphone the company has ever released. While there is a lot of buzz about other products that Samsung has yet to release, the Galaxy Note 4 is the device for Apple to beat.