Sixth Sense is a wearable gestural interface developed by Pranav Mistry that consists of a camera, projector, and mirror coupled in a pendant. The camera tracks hand gestures and sends the data to a smartphone for processing. The projector then projects the digital information onto any surface via the mirror. This allows users to interact with digital information in the physical world using natural hand gestures. Some applications include making calls, getting maps, checking the time, and accessing information about objects by pointing at them. The system has advantages like automatically accessing information and interacting with it intuitively through gestures.