certification testing. Non-compliant hardware is simply referred to as WLAN, and it may or may not work with "Wi-Fi Certified" devices. as of post=, 2017 the Wi-Fi Alliance consisted of more than 800 companies from around the world. as of post=, 2019 over 3.05 billion Wi-Fi-enabled devices are shipped globally each year.

Wi-Fi uses multiple parts of the IEEE 802 protocol family and is designed to work well with its wired sibling,