I find it interesting that I can control my Genesis's climate through my Apple Watch using both the Genesis app (as long as my phone is nearby) and the Apple Key (which uses that cool short-range technology).
The watch app basically gives me a taste of what the full Genesis app on my phone can do, but with fewer features. And the best part is that I don't have to be standing right next to my car to use it!
However, there's a slight drawback: the watch app seems to rely on my phone's connection to work. It doesn't appear to use the watch's own Wi-Fi or cellular capabilities to send the commands. It's a bit disappointing that it's not fully independent.