My work mobile was recently switched to an iPhone. Can't comprehend why Apple is able to charge the premium they do? Usability.
It's a little detail like this: If you are listening to music on headphones and a call comes in, the music doesn't stop, it ramps down in volume. When you answer, it pauses, and once you have finished your call, restarts and slowly ramps up to the previous volume. They didn't have to build it that way. The audio could have just stopped and started.
Someone at Apple sat and thought about how a user would experience a transition like that, then asked for a few extra lines of code to make the transition seem more integrated, more designed, rather than just a transition between two functions.
The list of things the iPhone doesn't do is long. But the things is does do it does really, really well. Thus the difference in price.