Speed: WiFi6 is the fastest, with a maximum rate of 9.6Gbps. In contrast, WiFi5 has a maximum rate of 3.5Gbps, while WiFi4 has a maximum rate of only 600Mbps. This means that the theoretical transmission speed of WiFi6 is nearly three times higher than that of WiFi5 and higher than that of WiFi4.
Band support: WiFi4 only supports 2.4G band, WiFi5 only supports 5G band, and WiFi6 supports both 2.4G and 5G bands. This means that WiFi6 can completely cover low-speed and high-speed devices.
Multi-terminal transmission: WiFi6 adopts OFDMA technology, which supports multiple terminals to transmit in parallel at the same time, effectively improving efficiency and reducing delay and network congestion. In contrast, WiFi4 and WiFi5 perform poorly in this respect.