Connectivity
What is Zigbee in smart home devices?
Zigbee is a low-power wireless protocol built for smart homes: sensors, bulbs, plugs, and locks. It forms a mesh network in which devices pass the signal along to each other, and it needs a hub or bridge to connect that network to Wi-Fi and the app. It runs on the 2.4 GHz band.
Advantages over Wi-Fi
It uses very little power: a battery-powered door sensor can last a long time. It also keeps devices off your router, since Zigbee gear connects to the hub instead of Wi-Fi.
The mesh network lets plugged-in devices (like bulbs or smart plugs) repeat the signal and extend coverage across the house.
What to know
Without a Zigbee hub or bridge, these devices cannot be controlled from your phone. Some smart speakers and routers have one built in.
Zigbee and Matter are not mutually exclusive: a compatible hub can expose Zigbee devices to Matter so they work across platforms.
What to check before you buy
- Before buying a Zigbee sensor, confirm you have a compatible hub or add one to your order.
- For a few simple devices, Wi-Fi models may be more practical since they need no hub.
- For many battery-powered sensors, Zigbee does better on power use and stability.
Guides to help you choose
Frequently asked questions
The Zigbee network runs at home through the hub. Remote control from outside and some app features do need internet.