The global smartphone market shipped one billion units in a single year for the first time, 38.4% increase from 725.3 million units in 2012. Samsung was the leading vendor, says IDC. Cheap devices is driving the momentum. Smartphones made up 55.1% of mobile phone shipments in 2013, up 41.7% from the year before. In the global market for mobile phones (including smartphones), vendors shipped 1.82 billion units, a 4.8% increase from the 1.74 billion units shipped in 2012.