Meet the Kai gesture controller: a smart wearable device that tracks your hand movements and lets you control your games and apps with gestures. You can scroll, select, and do everything in between with a flick of your fingers. Kai can pair to your devices via Bluetooth. It has a SDK for developers too.
Kai is ready for virtual reality games. It has a control center app that lets you create and update gesture-based controls. The battery lasts up to 8 hours.