What are the major practical differences between these standards?
The Wi-Fi 6 (802.11ax) 2.4/5 GHz standard introduces OFDMA modulation and data multiplexing, which means that multiple clients can communicate over the air at the same time. This is a very important aspect, because in Wi-Fi each packet transmission (from AP or client) usually has to wait for the air to be free (due to the mandatory CSMA/CA algorithm). This takes …

