Jacob Poushter, “Smartphone Ownership and Internet Usage Continues to Climb in Emerging Economies,” Pew Research Center, February 22, 2016, . Было продано еще примерно 1,5 миллиарда устройств: Tess Stynes, “IDC Cuts Outlook for 2016 Global Smartphone Shipments,” Wall Street Journal, September 1, 2016, .
