Apple's industrial design is legendary and goes from top to bottom. In the end, it isn't just that the software is better nor is it just that the hardware is be

Apple's industrial design is legendary and goes from top to bottom. In the end, it isn't just that the software is better nor is it just that the hardware is better; it's that both of them just work. That is the essence of good design. While Mach predates iOS, to say that iOS wasn't designed from the ground up for the environment it is running in would be a gross mischaracterization. The pieces exposed, the services provided, all reflect the realities of the hardware it is running on (eg highly constrained and battery driven).