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Matter, Thread and Zigbee

How smart-home devices from different brands are meant to work together, and which part of the job each standard covers.

Deep dive

Read firstBluetooth LE, Wi-Fi and 802.15.4MQTT, CoAP and HTTP
Matter, Thread and Zigbee in a home Matter is an application layer that runs over Wi-Fi, Ethernet and Thread, and Thread and Zigbee share the IEEE 802.15.4 radio. In the home, a Thread border router and a Zigbee gateway join their devices to the Wi-Fi or Ethernet network; control from outside goes through the internet to an internet-connected controller. Application Network / link 802.15.4 radio Matter runs over IP networks; 1.0 released October 2022 Wi-Fi Ethernet Thread IPv6 mesh Zigbee not an IP network Zigbee reaches IP networks through a gateway or hub IEEE 802.15.4 radio Inside the home Wi-Fi or Ethernet network Gateway or hub Thread border router Device on Wi-Fi Controller hub or speaker Zigbee Zigbee Thread Thread Zigbee devices Thread mesh Matter: basic control keeps working if the internet or cloud is down Away from home Internet Control from outside Needs an internet- connected controller New devices are usually set up over Bluetooth LE. Since Matter 1.4.2 (2025), Wi-Fi devices and controllers that both support it can do setup over Wi-Fi alone.
Matter runs over Wi-Fi, Ethernet and Thread; Thread and Zigbee share the 802.15.4 radio, and control from outside the home needs an internet-connected controller.

Key points

  1. Matter is an application-layer standard from the Connectivity Standards Alliance. It runs over IP networks (Wi-Fi, Thread and Ethernet). New devices are usually set up over Bluetooth LE, though since Matter 1.4.2 (2025), Wi-Fi devices and controllers that both support it can do setup over Wi-Fi alone.123
  2. Matter 1.0 was released in October 2022.2
  3. Thread is an IPv6 mesh network built on IEEE 802.15.4. A border router connects the Thread mesh to Wi-Fi or Ethernet networks.45
  4. Zigbee is also built on IEEE 802.15.4 and maintained by the Connectivity Standards Alliance, but unlike Thread it is not an IP network, so it reaches IP networks through a gateway or hub.67
  5. Matter devices are controlled over the local network, so basic control in the home keeps working if the internet or a cloud service is down. Control from outside the home still needs an internet-connected controller, such as a hub or smart speaker.78

Sources

  1. Matter (connectedhomeip) SDK repository README · Project CHIP / Connectivity Standards Alliance · Project docs
  2. Matter 1.0 standard released · Connectivity Standards Alliance · News
  3. Matter 1.4.2: Enhancing Security and Scalability for Smart Homes · Connectivity Standards Alliance · News
  4. What is Thread · Thread Group · Standard
  5. Thread Network Fundamentals (May 2020) · Thread Group · Reference
  6. Zigbee · Connectivity Standards Alliance · Standard
  7. Matter FAQs · Connectivity Standards Alliance · Vendor page
  8. Matter · Connectivity Standards Alliance · Standard