3D touch feature of mobile phone conveys depth perception to the viewer by providing stereoscopy or any other form of 3D depth techniques. Many 3D phones has glasses free 3D display and some also have 3D camera and output via HDMI.
The 3D touch has ability to experience the virtual world in the same way as real world is experienced intuitively, interactively and with a full complement of complex tactile sensations. 3D touch allows computer users to navigate in 3 dimensional space naturally and has high-fidelity simulations of weight, shape, texture and dynamics. In computer generated environments, 3D touch makes it possible to practice complex surgical procedures. This 3D touch feature is deeply affecting, genuinely helpful for users.
3D touch can be a natural way to press, peek and pop your way around even faster. You can launch actions instead of apps, preview messages and links, switch apps, switch keyboards, animated Live Photos, vary stroke width and many more can be done with 3D Touch.
Home screen actions let you access standard options such as taking selfies or getting directions home, without need to first launch and navigate the app. You can also access dynamic options such as recent contact, so that you can quickly resume a conversation. If the app does not have any home screen actions then you will receive a brief taptic buzz- the kinetic equivalent of a head shake. That time the rest of screen will blur and you will receive a list of up to 4 options with icons and descriptive text.