Is your phone WLAN or WiFi? What is the relationship between the two?

I wonder if you have noticed the names of wireless local area networks in mobile phones. Some are called WiFi, and some are called WLAN. So what is the relationship between WLAN and WiFi?

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1. To know the relationship between the two, we must first clarify the difference between WLAN and WiFi:

WLAN is Wireless Local Area Networks, which uses radio frequency technology to form a local area network connected by air communication. It is a network mode for the Internet and a function for mobile phones, equivalent to a computer's wireless network card.

WiFi is a wireless fidelity networking technology, usually using 2.4G UHF or 5G SHF ISM radio frequency bands, and is somewhat similar to Bluetooth technology.

2. The relationship between the two

Wi-Fi is an important part of WLAN. That is, WLAN includes WiFi technology and some other technologies.

WLAN has a wider coverage range, up to 5 kilometers with an antenna; Wi-Fi is usually generated by routers, wireless network cards or wireless terminals, and is mainly used in smaller areas such as homes and offices, with a general coverage radius of 90 meters. With the development of routers, it is now not limited to 90 meters.

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3. Why do some phones show wireless LAN, while others show WiFi or WLAN?

• Wireless LAN: Foreign brand mobile phones purchased through regular channels will be displayed as wireless LAN.
• WiFi: Foreign brand mobile phones not sold in China will be displayed as WiFi.
• WLAN: Domestic brand mobile phones are displayed as WLAN.