Both platforms cumulatively shipped just under 200 million smartphones.
Android and iOS accounted for more than ninety percent of all smartphone shipments during the fourth quarter of last year. According to data released by Strategy Analytics, the two ecosystems accounted for a record 92 percent of worldwide smartphone shipments within the Q4 2012.
Android shipped on 152.1 million smartphones, a considerable increase compared to the 80.6 million shipped in Q4 2011. The market share for Google's mobile platform, meanwhile, increased to 70 percent from 51 percent. Android vendors shipped almost half a billion smartphones in 2012.
The iPhone shipped 47.8 million smartphones during the last quarter, giving it a 22 percent market share. Comparatively, Apple sold 37 million smartphones in Q4 2011.
"Android is clearly the undisputed volume leader of the smartphone industry at the present time," said Strategy Analytics analyst Neil Mawston. "Android's challenge for 2013 will be to defend its leadership, not only against Apple, but also against an emerging wave of hungry challengers that includes Microsoft, Blackberry, Firefox, and Tizen."
"The worldwide smartphone industry has effectively become a duopoly as consumer demand has polarized around mass-market Android models and premium Apple designs," added Strategy Analytics analyst Scott Bicheno.
The industry shipped 217 million smartphones in the last quarter, a 38 percent increase on the 157 million shipped in Q3. During the whole of 2012, 1.6 billion phones were sold, with smartphones contributing 700 million to said figure, which is an increase of 209.5 million compared to the 490.5 million shipped in 2011.