IDC estimates for wearable shipments in 2Q 2015:
Note that this is analogous to showing Apple’s share of the overall handset market (i.e., not just smartphones); Apple doesn’t sell the most handsets, either. But what really matters is profit share. If IDC or any analyst firm estimated operating profit from wearables, Apple would be in first place. And it’s just getting started, in terms of distributing Apple Watch and, more importantly, in terms of capitalizing on Apple Watch’s hardware and software platforms (you may need to scroll down a bit).