WiFi 6 is the newest standard for communication. This blog compares WiFi 4 vs WiFi 5 vs WiFi 6 in speed, range and more.
Solutions - Wi-Fi 6E: The Next Great Chapter in Wi-Fi White Paper - Cisco
Nest Wifi vs. Nest Wifi Pro: Google's Newest Mesh Routers Compared - CNET
Wi-Fi 6 vs. Wi-Fi 6E: Spectrum, not hype, is key difference
What is the difference between WiFi 4 and WiFi 5? - Quora
IEEE 802.11be - Wikipedia
Wi-Fi 4 vs Wi-Fi 5 vs Wi-Fi 6 The New Wireless ERA has Started. What is Wi-Fi 6?
Should I use 2.4 GHz or 5 GHz WiFi?
WiFi 6 vs WiFi 6E: A Short Guide
IEEE 802.11 - Wikipedia
WiFi 5 vs WiFi 6: What's the Difference? - Race Communications
WiFi standards explained: WiFi 4 vs WiFi 5 vs WiFi 6