Chart - US Smartphone Users

eMarketer expects 65.0% of US mobile phone users, or 51.4% of the total population, to use a smartphone at least monthly in 2014. That compares with two-thirds of mobile phone users in the UK, or 53.7% of the total population. The UK will continue to lead by both of these metrics—but only slightly—throughout our forecast period, thanks to robust growth in the US smartphone market. Read the rest at eMarketer.