Key Takeaways
1. Zigbee 4.0 introduces significant upgrades, including Zigbee Direct for direct device configuration via Bluetooth Low Energy (BLE) and batch commissioning for adding multiple devices simultaneously.
2. The new Suzi branding utilizes lower frequencies (around 800MHz in Europe and 900MHz in North America) for better range and penetration through walls, offering a viable alternative to 2.4GHz technologies.
3. Enhanced security features are prioritized in Zigbee 4.0 while ensuring compatibility with Zigbee 3.0 and Smart Energy devices.
4. Certification for Zigbee 4.0 and Suzi is expected to begin in the first half of 2026, indicating a delay before products are available on the market.
5. Zigbee 4.0 and Matter are designed to work together in the smart home ecosystem, with Zigbee remaining a power-efficient option that can integrate into the Matter framework through bridges.
The Connectivity Standards Alliance (CSA) is widely recognized for its smart home protocol known as Matter. However, the older wireless standard Zigbee is also set to receive a significant upgrade. Along with Zigbee 4.0, the CSA debuted Suzi, a new label for the sub-GHz version that offers extended range.
Enhancements in Zigbee 4.0
The transition to version 4.0 includes substantial modifications to the mesh network’s core framework, featuring the addition of Zigbee Direct. This new function enables users to configure Zigbee devices directly using Bluetooth Low Energy (BLE), eliminating the need for a dedicated hub. Furthermore, there is a new capability that allows users to add multiple devices at once, referred to as batch commissioning.
Additionally, this updated standard prioritizes enhanced security features while maintaining full compatibility with Zigbee 3.0 and Smart Energy. The CSA aims to make sure that various generations of devices can operate collaboratively.
Introduction of Suzi Branding
In conjunction with Zigbee 4.0, the CSA revealed the new Suzi branding. While Zigbee continues to work within the familiar 2.4GHz frequency band, Suzi utilizes lower frequencies, around 800MHz in Europe and 900MHz in North America. These lower frequencies are more effective at penetrating walls and ceilings compared to higher frequencies, resulting in an extended range.
Moreover, since technologies like WiFi already utilize the 2.4GHz band, it becomes susceptible to interference, especially in urban settings. Thus, Suzi could serve as a viable alternative to other long-range technologies like LoRaWAN and Z-Wave Long Range.
Certification and Market Readiness
It remains uncertain whether this wireless standard will be an essential component of Zigbee 4.0 or if it will require an independent certification. The CSA has stated that certifications are anticipated to begin in the first half of 2026, indicating that it will take some time before the initial products become available.
With all this in mind, one might wonder if Zigbee 4.0 is even necessary with Matter in existence. Matter was created to unify various smart home protocols and is being regularly updated, as shown by the latest 1.4.2 update. Conversely, Zigbee is likely to remain a power-efficient option that can be incorporated into the Matter ecosystem through bridges. Hence, the two technologies do not truly compete but rather collaborate to provide a strong foundation for communication between devices in smart home environments.
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