Difference between LiFi and WiFi

Wi-Fi(wireless fidelity) and Li-Fi(light fidelity) both are two different technologies which are used to send and receive data wirelessly. In case of Wi-Fi we use Routers and Radio Frequency (RF) waves to transmit data, whereas in Li-Fi we use LED bulbs and Light signals to transmit and receive data.

Basic Difference between LiFi and WiFi:

COMPARISON	LI-FI	WI-FI
Full form	stand for light fidelity	stands for wireless fidelity
Invented/Coined	Coined by Prof. Harald Haas in 2011	By NCR corporation on 1991
Operation	it transmits data using light by the help of LED bulbs	it transmits data using radio waves using wifi router
Technology	Present IrDA compliant devices	WLAN 802.11/b/g/n/ac/d standard compliant devices
Data Transfer Speed	About 1 Gbps	Ranges from 150Mbps to maximum of 2Gbps
Privacy	light is blocked by the walls hence provide more secure data transfer	walls cannot block radio waves so we need to employ more techniques to achieve secure data transfer
Frequency of operation	10, 000 times frequency spectrum of the radio	2.4Ghz, 4.9Ghz and 5Ghz
Coverage Distance	about 10 meters	about 32 meters(vary based on transmit power and antenna type)
Data density	work with high dense environment	work in less dense environment due to interference related issues
Bare minimum Components used	LED bulb, LED driver and photo detector	Routers, Modems and access points
Applications	Used in airlines, undersea exploration etc	Used for internet browsing with the help of wifi hotspot