246 million iOS and Android devices active in China and 230 million active in the states. And the U.S. will never get the lead back. Why? Consider that the population in China is 1.3 billion people vs. 310 million in the U.S. The only country that might have a shot at China is India, with a population of 1.2 billion. But there are only 19 million active smart devices in India right now, meaning that India will not be seen as being competitive with China for some time.
The third largest market after the U.S. and China is the U.K., with only one fifth the number of active iOS and Android devices used in either the U.S. or China. Despite being the largest iOS and Android active market, China still showed remarkable growth of 209% among active iOS and Android markets last year. On top, with 278% growth, was Colombia.
Consider that the U.S. first topped the 100 million mark in active iOS and Android users in May 2011. China hit that benchmark a little more than a year later. Now, China has not only caught up to the U.S., but has surpassed it.
source: Flurry via AndroidAuthority