Android and iOS lead US smartphone market in Q4 2011

Google's Android operating system retained its lead in the U.S. smartphone market with a 47.3% share of mobile subscribers for the last three months of 2011. Android once again enjoyed a wide gap over rival Apple iOS, which remained steady at the second spot with 29.6% market share. Both platforms also saw increased percentage points from their previous quarterly figures. Android added 2.5 points from 44.8% share in September and iOS rose 2.2 points from 27.4%.

The rest of the smartphone platforms did not do as well.

RIM's BlackBerry fell 2.9 percentage points for the quarter but still managed a respectable third place with 16.9% share of smartphone subscribers. Microsoft's Windows owns 4.7% of all smartphones but the number slipped 0.9 percentage points. Symbian completes the list with its 1.4% share that is 0.4 percentage points down from the previous quarter. All three platforms combined constitute 22% of U.S. smartphone users.

These figures were released by digital measurement firm comScore through its MobiLens service. The service reports compound data derived from an intelligent online survey of 30,000 mobile subscribers aged 13 and above. Current U.S. smartphone penetration is at 97.9 million users, which is 40% of all mobile users.

comScore also revealed that current U.S. smartphone penetration is at 97.9 million users, which is 40% of all mobile subscribers. It figures easily into the increased mobile content uptake in December. Text messaging was still the most popular activity at 74.3%, up 3.2 percentage points. Similar increases were seen for downloading apps, which went up to 47.6%. Mobile browsing grew to 47.5% while social networking and blogging engaged 35.3% of mobile users.

For a breakdown of this report, please visit comScore's website at