5G and Wi-Fi are designed to provide high-speed wireless network connections. 5G is mainly to meet the needs of the mobile communication field, providing faster data transmission speed, lower latency and higher bandwidth to support more device connections and more complex applications. Wi-Fi, on the other hand, provides wireless network connections for homes, businesses and public places, enabling people to connect to the Internet wirelessly and carry out online activities. Both are designed to provide faster, more stable, and more convenient wireless network connections to meet people's growing network needs.5G and Wi-Fi are two different wireless communication technologies, and there are essential differences in network connection methods, transmission speeds, and coverage areas. The following will be analyzed from the following aspects:(1) The frequency band and speed are different5G communication uses high-frequency radio waves, mainly in the millimeter wave frequency band and sub-millimeter wave frequency band, and the bandwidth of 5G communication is relatively large, which can reach a speed of tens of Gbps; while Wi-Fi communication uses low-frequency The radio waves in the frequency band mainly communicate in the 2.4GHz and 5GHz frequency bands. Today, the highest speed of the new generation of Wi-Fi 6 can only reach 9.6 Gbps.(2) Network coverage is different5G has wider coverage than Wi-Fi. 5G technology uses smaller base stations and higher frequencies, which can cover a wider range and provide more stable signals. However, the coverage of Wi-Fi is relatively small, and generally it can only provide a stable signal within a range of tens of meters.(3) Different stabilityThe stability of 5G communication is better, and the signal is not easy to be interfered and blocked, while the stability of Wi-Fi communication is relatively poor, and the signal is easily affected by obstacles and interference.(4) The number of connected devices is different5G can connect more devices, 5G technology uses higher bandwidth and more advanced multi-user technology, can support more device connections, and can also process a large amount of data traffic faster. However, the number of Wi-Fi device connections is relatively small, and generally only supports dozens of devices.(5) Security5G networks are more secure than Wi-Fi. 5G networks use more secure encryption, while Wi-Fi has some security holes.(6) Electromagnetic radiation5G networks require more antennas to cover a wider area and therefore generate more electromagnetic wave radiation. Wi-Fi has lower electromagnetic wave radiation than 5G.(7) Different technical standards5G is a brand-new mobile communication standard, and its technical standards are formulated by the International Telecommunication Union (ITU) and the Third Generation Partnership Project (3GPP); while Wi-Fi is a wireless local area network technology based on the IEEE 802.11 standard.(8) Different application scenarios5G is mainly used for mobile communications, providing high-speed data transmission and low-latency network services for mobile devices such as mobile phones and tablets; Connected services, no mobile required.