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iOS continues to lead as the top selling smartphone platform sold in the U.S, with 51.2% of market sales for the 12 week period ending December 23rd, 2012, according to data released today by Kantar Worldpanel ComTech.

In comparison to the same period last year, Android has remained stable, 44.8% to 44.2%, while Windows remained in third place at 2.6% of smartphones sold in the 12 weeks to December period.

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“Apple’s continual improvement is thanks to both the iPhone 5 and older models attracting various customer groups, from repeat Apple buyers, first time smartphone buyers and those coming from other smartphone brands”.

“In particular, 36% of iOS sales were derived from other smartphone users over the last year. While this figure remains stable over time, the proportion of Android users moving towards the Apple brand increases. 19% of iOS sales over the last year were derived from Android users, compared to 9% in 2011,”

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This trend is most evident within Verizon where half (49%) of iOS sales were derived from users of other smartphone brands, and 30% were derived from Android. These figures are much higher compared to AT&T where 15% of iPhone purchasers came from other smartphone users (6% from Android).

While for other customer groups, 35% of iOS sales were those upgrading from a previous iPhone and 30% were those upgrading to their first smartphone.

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