
In this picture taken on May 31, 2016, delivery workers look at their smartphones during lunch time in Beijing. China had 1.3 billion mobile users by the end of 2015, and nearly 30 percent of them - a swathe of humanity larger than the whole population of the United States -- were connected to the 4G network, according to its ministry of industry and information technology. / AFP PHOTO / FRED DUFOURFRED DUFOUR/AFP/Getty Images


