mobiForge has a new article showing Apple losing share, Samsung and Huawei growing in Q2 2016.
The report has additional insights that are of more interest to developers. Also note that numbers are based on web traffic rather than new device sales so give a better insight in the installed base rather than short term buying trends.
First of all, the change in Apple web traffic depends on the country. You can use this to imply changing device ownership in your particular country…
The stats on screen size vs country also provide clues as to what screen size you should be optimising (your designs) for based on your target country:
More stats are in the full report.