I'm not sure that the straight comparison between Apple and Samsung is fair. Apple phones have their own OS, Samsung is using Android, and thus Samsung sales are influenced by other Android competitors, including cheaper ones. Apple built an ecosystem with no competition, if they convince people with their fancy well-marketed hardware and stolen patents, they reinforce the monopole since those new users will get locked in iOS; if they convince people with their software, then they secure the monopole as well as those people are looking for iOS and can only buy Apple.

It would be better to compare Apple and, let's say, Jolla when it was still a software and hardware company. But then. Wait.
(And regardless of what the profit figures would look like, I would still pick Jolla and Sailfish without the slightest hesitation.)

However, seeing how symmetric Apple and Samsung curves are on the plot, then it might actually be a fair comparison. I'm changing my mind: they look pretty much totally inversely correlated so forget the above ********.