Is There Any Wearable Tech You Actually Want to Wear?

Smart glasses, fitness trackers, intelligent contact lenses, hell, even weird bracelets that tell you when to get out of the sun. Wearable tech seems to be very much the future—just ask Dilbert—but do you want to wear any of it?

Is there any of the current crop that you would happily slip on? Or, is there something that you would definitely wear if only a company would hurry up and design it? What wearable tech do you think you're going to wind up with?