We stumbled across this awesome little device called Aria. Aria is a small add-on that attaches to smartwatch bands (Pebble, Android and soon Apple watch). Basically once it’s clipped on it gives you the ability to control your device through finger gestures.
aria-wearable
Instead of using the touch screen or watch dial, you just move your hand/fingers. It connects to your smartwatch using Bluetooth. Hard to explain but check out the video below.

Aria are planning on starting a Kickstarter campaign (crowd funding). Stay tuned if you want to contribute.