Does Wifi 6 router work with older devices?

Yes, a Wi-Fi 6 router works with older devices, as they are fully backward compatible. Older devices will work fine, but won't get Wi-Fi 6 speeds. A device using an older standard (like Wi-Fi 4/5) connects to a Wi-Fi 6 router at its own speed. So the router doesn't slow down, but the specific device also won't see an improvement. The device and router communicate using the best Wi-Fi standard they both support.

And here’s the good part. You don't need every device to be Wi-Fi 6 compatible to benefit from a Wi-Fi 6 router. It will automatically manage traffic more efficiently for the whole network.