IDC: the smart watches market, led by the Apple Watch, to see steady growth
<p>The overall wearables market is expected to grow from 113.2 million shipments in 2017 to 222.3 million in 2021 with a compound annual growth rate (CAGR) of 18.4%, according to the International Data Corporation (IDC) <a target="_blank" href="http://www.idc.com/tracker/showproductinfo.jsp?prod_id=962" rel="noopener noreferrer">Worldwide Quarterly Wearable Device Tracker</a>. And smart watches, led primarily by the Apple Watch, are expected to ship 71.5 million units by 2021, up from 31.6 million in 2017. </p>