Of those manufacturer's producing Android devices, HTC had the largest U.S. share with a 12% slice followed by the 10% piece owned by Motorola, and the 5% controlled by Samsung. The last group, "Others", consists of other manufacturers like LG, Sony Ericsson, Dell and Huawei, and had 2% of the U.S smartphone market.
10% of U.S. smartphones from last November through this January were powered by Windows Phone 7. HTC lead the way with 7% of U.S. smartphones flavored by Microsoft's OS. Samsung was next with a 2% piece of the pie, followed by the 1% slice controlled by HP and Motorola.
4% of U.S. smartphones during the November through January time period were powered by WebOS while Symbian flavored phones had half that share.
Another graph produced by Nielsen shows the popularity of operating systems depending on age. Those 18-24 favored Android while the 55-65+ demographic belonged to iOS.
HTC owns the largest share of the U.S. smartphone market for devices powered by Android and Windows Phone 7