Fortune sums up Strategy Analytics’ blog post:

The data show that Apple's iPhone 5 overtook Samsung's Galaxy S3 by some 12 million units in the last quarter of 2012 to become the world's bestselling smartphone. That's not terribly surprising. What is surprising is that according to Strategy Analytics the iPhone 4S -- discounted by Apple when the new model came out -- also overtook the Galaxy S3.

This will read strange to the ones claiming that Apple’s decline has already started.