Cool wearable device: Japanese startup Logbar announced ring type device

This is wearable device which is the coolest in Japan now. Japanese startup Logbar announced ring type device "Ring". What kind of device is this? Check this video.


Ring -Shorcut Everything- from Logbar on Vimeo.

This is really cool. Furthermore, it is smaller than glasses type wearable device and is simple. They release this in 2014 and show API for a developer.