The watch-to-watch communication with all the sharing your heart rate and sending little pictures was the most Samsung thing I've ever seen anyone but Samsung do. Seriously, is there a real problem lurking around somewhere for which this is a solution?
The force sensitive display might be useful, I couldn't really tell from the coverage. At least one person there commented that they were having a hard time seeing the big difference between "force press" and "long press".
Is the "Taptic" feedback significantly different that the vibrating motor present on every other watch? I can't really tell, but I think functionally, vibration can already serve the purpose well enough, although the Apple implementation might be a bit more elegant -- I can't find enough information to say for sure.
I would say the Apple innovations here is mainly the digital crown. On every smartwatch, there's a lot of swiping around to do basic navigation, but there's not been a really good way to zoom in and out. Apple's implementation allows for apps like their photo demo to be more practical. I'm suspicious that they might be overusing it -- the idea of needing to zoom around to launch apps seems less like a good idea, but overall the novel input method is an innovation I'd say.
I assume they must have NFC in the watch to handle the payments system. That's (I think) novel among the smartwatch lineup, and maybe that's a thing that really catches on.
Mostly though, I think that the people who complained that Android Wear was just a mini cell phone on your wrist should be disappointed with the Apple Watch as well. I'm not one of them for the record, I'm wearing the Gear Live right now, and I quite like it. But I don't think Apple has revolutionized the smart watch. They've just made what looks to be a solid entry into the market.