The basic definition of haptic is "the use of technology that stimulates the senses of touch and motion, especially to reproduce in remote operation or computer simulation the sensations that would be felt by a user interacting directly with physical objects.” (Google Dictionary) Phones and wearables use haptics mostly for alerts, i.e. when the user needs to take an action.
Haptic full-body suits are already being developed that will enable the user to have tactile sensation throughout their body. This opens a whole new world of Virtual Experiences. A user could fully engage with whatever game they were playing. Picture the ability to feel getting punched, getting shot, or even getting killed without taking any serious physical damage. For a less depressing use, imagine being at a virtual, oceanfront bar and feeling the cool sea breeze on your skin. The potential possibilities are endless.