The top mobile handsets owned by those ages 16 to 64 around the world are models made by Samsung, Nokia and iPhone, according to GlobalWebIndex’s Device Report 2014. The penetration of Samsung handsets has grown 5 percentage points during the four quarters of 2013, from a 31 percent market share to a 36 percent market share.

Meanwhile, the penetration of Nokia handsets declined from 25 percent to 22 percent, and the iPhone’s share spiked from 20 percent to almost 25 percent. Sony came in a distant but notable fourth place, growing its share from 8 percent to 12 percent.

This data set is among the many trends highlighted in the annual Global Digital Media Trendbook. The 2015 GDMT executive summary is now available for free. The Trendbook itself is packed with 500 data sets, 70,000 words of analysis and 230 pages of digital media usage and revenue trends.

The executive summary captures the essence of the trendbook, with 20 pages of 2015’s hottest digital media trends in mobile, video, social media, Big Data and digital revenue streams. For more information, contact publisher Martha Stone at mstone@wnmn.org, or go to www.wnmn.org to download the executive summary.