Chart - Global Wearable Computer Sales

Wearable smart device sales worldwide will hit 64.0 million units by 2017, according to research from Berg Insight.

And wearable smart devices are already showing some success. Berg Insight reported that wearable smart device shipments—which the study defined as smart glasses, smart watches and wearable fitness trackers—jumped nearly 168%, from 3.1 million to 8.3 million, between 2011 and 2012. Read the rest at eMarketer.