Even though Apple's year-over-year shipments grew 29% for the three month period, its market share dropped from 24% in 2011 to 22% in Q4 2012. Android shipments almost doubled from 80.6 million units shipped in 2011 to 152.1 million during the fourth quarter last year. In that same time period, the green robot's market share went from 50% to 70.1%. For all of 2012, about half a billion Android phones shipped compared with 135.8 million Apple iPhones. Assuming that the two platforms continue to have a strong duopoly in 2013, it leaves very little market share for Windows Phone, BlackBerry 10 and others, to fight over.
"Combined together, Apple and Android accounted for a record 92 percent share of all smartphones shipped globally in the fourth quarter of 2012. The worldwide smartphone industry has effectively become a duoply as consumer demand has polarized around mass-market Android models and premium Apple designs."-Scott Bicheno, senior analyst, Strategy Analytics