A mesh network is a type of wireless system in which multiple devices, called nodes, work together to transmit data. Unlike a standard router that communicates directly with each device, mesh nodes relay information to their neighbours, creating a web of connections that covers a larger area more reliably.
In a typical mesh setup, you have a main router connected to your broadband, plus several satellite units placed around your home. When your phone or laptop moves between rooms, it connects to whichever node has the strongest signal, and data flows through the network automatically. This continuous hand-off means you rarely experience a drop in connection or need to reconnect manually.
A real-world example: you're streaming a film on your tablet while moving from your living room to upstairs. A single router might lose you at distance, but a mesh system passes your connection seamlessly between nodes so playback continues uninterrupted.
Mesh networks are particularly useful in large homes, buildings with thick walls, or multi-storey properties where a single router struggles to reach every corner. They also handle multiple devices better than traditional routers, since traffic is distributed across several nodes rather than bottlenecking at one point.
When buying a mesh system, check the coverage area each unit promises, the total bandwidth it can handle (look for WiFi 6 or newer for better performance), and whether the system uses the same network name across all nodes. You'll also want to ensure any nodes you add later are compatible with your existing units.