LiFi works by using light waves (visible, ultraviolet, & infrared) to bidirectionally transmit data through the air as opposed to Wi-Fi which transmits data over radio frequencies.
FCC had warned that Wi-Fi is close to critical capacity, where LiFi is has almost no limitations because the visible light spectrum is 10,000 times larger than the entire radio frequency spectrum. (The electromagnetic spectrum for LiFi communication ranges from 200 THz up to 800 THz)
Because the components required to deploy this technology are much simpler than Wi-Fi or Bluetooth, integration of this technology can use components that are already integrated in your devices. In fact, applications already exist in the iOS and Android app stores.
Lasers have been used in communications for decades and enable airborne communication speeds 100x FASTER than LEDs. As more Laser based LiFi solutions are adopted, this technology is expected to enable new communication and sensing networks for smart cities and intelligent homes in next generation, AI-driven IoT applications.