FOOLCONTROL inventor and DP Mikael Lubtchansky has come up with a way to control WiFi enabled RED cameras with an Apple Watch connected to iPhone or iPad.
Foolcontrol iOS(downloadable from Apple Store) lets you record and play back. It also comes with an impressive set of camera controls, tools, looks, curves, slate info, metadata, lens and menu navigation.
It also works as focus/iris control for lenses with internal servos (Canon EF).