I have some experience building WatchKit Apps. I'm building out the companion App for my virtual trainer:
http://impactfit.co
It's very early days with WatchKit. You can understand most of the SDK by just looking at the header file for WKInterfaceController. A Watch App is basically a Today Widget Extension.
It's very early days with WatchKit. You can understand most of the SDK by just looking at the header file for WKInterfaceController. A Watch App is basically a Today Widget Extension.