You won't see a Novasentis Clic haptic actuator on Best Buy shelves, but there's a good chance that it will soon be in many of the wearable products on the market.
The company's electrical-mechanical polymers are thin films, 200 microns thick, that elongate slightly when a small voltage is applied so that the user feels a "click." Similar technology can be used to sense touch and even to play sound. Because it's not necessary to vibrate the entire device to provide haptic feedback and because the voltage requirements are so small, the Clic polymers can drive significant size and cost efficiencies, according to the company.
Available: Late January 2014
Dan Rosenbaum, a long-time tech journalist, is editor of Wearable Tech Insider.