The general technical standard of WLAN is IEEE 802. 1 1 series standard, which uses 5GHz band and 2.4GHz. The highest network speed supported by IEEE 802.1g in 2.4GHz band is 54M, and IEEE 802.11.

2. Different coverage areas

WiFi has a small coverage and is only suitable for areas with small space, such as homes and cafes. WLAN covers a wider range and is suitable for public places, restaurants, office buildings, shopping malls and so on.

3. The transmission power is different

From the perspective of inclusion relationship, WIFI is a standard of WLAN, which is included in WLAN and belongs to a new technology adopting WLAN protocol.