Number of Smartphone Users Worldwide from 2014 to 2020 (in billions) Figure 4 shows that globally, devices and connections (10 percent CAGR) are growing faster than both the population (1.1 percent CAGR) and Internet users (7 percent CAGR). This trend is accelerating the increase in the average number of devices and connections per household and per Internet user. Each year, various new devices in different form factors with increased capabilities and intelligence are introduced and adopted in the market. A growing number of M2M applications, such as smart meters, video surveillance, healthcare monitoring, transportation, and package or asset tracking, are contributing in a major way to the growth of devices and connections. By 2021, M2M connections will be 51 percent of the total devices and connections. (October 13, 2017 from https://www.cisco.com/c/en/us/solutions/collateral/service-provider/visual-networking-indexvni/vni-hyperconnectivity-wp.html