To add to the existing answers, here I put few specifics of LiFi and its differences with Wi-Fi;

  1. Li-Fi can be considered as a light-based Wi-Fi. It uses light instead of radio waves to transmit information.
  2. Li-Fi is transmission of data using illumination i.e. sending data through an LED lamp that varies intensity of light faster than what human eye can perceive.
  3. Instead of Wi-Fi modems, Li-Fi would use transceiver-fitted LED lamps that can light a room as well as transmit and receive information.
  4. Wi Fi is great for general wireless coverage within building and Li-Fi is ideal for high density wireless date coverage in confined area and for relieving radio interference issues.
  5. So the two technologies can be considered complimentary.

Here are few Pros and Cons of Li-Fi;