Nielsen’s latest research report shows that the release of the iPhone 4S has caused Apple’s take of the total smartphone marketshare to climb significantly. The number of new smartphone buyers who chose the iPhone jumped from 25.1% in October to 44.5% in December—and 57% of these iPhone buyers chose the new 4S. But, Android still has a slight lead over Apple: in Q4 of 2011, 46.3% of all smartphone owners reported that they have an Android powered phone.
60% of new customers chose a smartphone over a feature phone last quarter, compared to the nationwide average of just 46%. As old iPhone models and low-end Android phones become cheaper, they will slowly replace feature phones—just as mp3 players replaced clunky Walkmans and CD players.