We expect the number of global smartphone subscribers to reach 3.8 billion by 2022, crossing the 50% mark for smartphone penetration by population in 2017 and reaching 66% by 2022. This is up from 21% in 2013.Our forecast details the global mobile, smartphone, and tablet installed base, as well as subscriber data. It includes data on business-owned smartphone subscribers and subscribers by operating system (2011 to 2017 only), as well as age and income ownership demographics. It also includes historical data going back to 2009 plus a five-year forecast.