Personally I like the current Ford advert for the EcoSport (in the UK) with the guy in his "Swimmers" walking off the beach with his car keys secreted in his eh.......... Swimmers.
Not sure if that counts as "wearables" in this context but I think it is a great application of new technology.
I also marvel at the actors ability to press the button on the keyfob with his ??? to open the car door and start the engine............ Simply amazing