What’s cool about Fin is that it isn’t just a gesture controller. The ring itself transforms your palm into a gesture interface, so you’ve essentially got a keypad or touchpad, right on your hand. This is made possible by the fact that the tiny device is programmed to recognize each segment of your fingers.
Fin connects to your smartphone, smart TV, car, or home automation system via Bluetooth. It will be able to convert simple hand motions into commands and control values with any connected device.