IDC: iPhone volumes are expected to grow by 2.1% in 2018 to 220.4 million
<p style="white-space: pre-wrap;">While the worldwide smartphone market is expected to decline again in 2018, IDC believes the market will experience low single-digit growth from 2019 through the end of its forecast in 2022. The International Data Corporation (<a href="http://www.idc.com/">IDC</a>) <a href="http://www.idc.com/tracker/showproductinfo.jsp?prod_id=37">Worldwide Quarterly Mobile Phone Tracker</a> forecasts worldwide smartphone shipments to decline 0.7% in 2018 to 1.455 billion units, down from 1.465 billion in 2017. </p>