Nod
Nod is a gesture control ring developed by Nod Labs. Nod can be used as a Virtual Reality input device. This wearable device is worn on your index finger. User can even wear two at a time, one on each hand. Equipped with sensors, processors and a bluetooth antenna, the ring allows its user to control and interact with various devices, such as a smartphone or VR HMD, by waving, pointing and gesturing with his or her finger.
Features
Hardware
Weighing 2 ounces, the Nod ring is water proof. It is designed to be worn all day, all the time. The 23-mAh battery gives the ring about a day of battery life.