One interesting tidbit about the new Apple Watch is that it comes with wireless charging. That's pretty awesome on it's own, and notable for the fact that it's a technology that hasn't quite be sorted out quite yet.
The watch requires no alignment or exposed contacts—it uses a combination of magsafe tech with inductive charging to connect. And the whoa is not because it's new tech; it's not. It's just a field that's not quite as refined as what Apple tends to adopt; wireless charging is still fairly inefficient, and there are a few different competing standards.
But now that Apple is weighing in, it's bound to help wireless charging catch on in a wider way and help it get better.