For the past four years, London startup OpenSignal, which tracks networks and sensors, has released an annual report on fragmentation in the Android ecosystem. Where Apple produces fewer models of its iPhone than you have fingers on one hand, Android has long had a vast diversity.
How vast? This year, OpenSignal counted more than 24,000 unique Android devices—both smartphones and tablets—on which its app has been installed. That is six times as many as in 2012.
Here’s what the evolution looks like: