What is a smart WiFi or mesh system?

It's a WiFi setup built to blanket a whole home evenly and handle lots of connected devices at once — the backbone a smart home runs on. A mesh system uses a main unit plus one or more satellite nodes that work as a single network, so as you move around the house your phone and gadgets hand off smoothly with no dead zones. A smart router is a single powerful unit that does the same job for a smaller space. Both typically run the newer WiFi 6 or 6E standards, come with an app for control, and let you create separate networks for guests and IoT devices. Compared with the old single router in the corner, they're designed for a house full of cameras, speakers, plugs and TVs rather than just a laptop or two.