The Connectivity Standards Alliance (TSA) announced the release of the Zigbee 4.0 standard and Suzi, the new brand for Zigbee Sub-GHz capabilities.
The TSA stated that these are two significant milestones in advancing the foundation for secure, interoperable, and scalable IoT connectivity, featuring a range of optional features that allow product manufacturers to select the specific set best suited to their product use cases and needs. These innovations mark the next stage of development for Zigbee technology, building on decades of proven performance to deliver greater range, reliability, and security across global networks.
The Zigbee 4.0 standard lays the foundation for harmonizing traditional Zigbee and smart energy devices, providing enhanced interoperability across common networks. While maintaining full backward compatibility with Zigbee 3.0 and Smart Energy, Zigbee 4.0 extends the operating frequency band from the traditional 2.4 GHz to 800 MHz (Europe)/900 MHz (North America), offering greater signal strength, range, and coverage. Additionally, Zigbee 4.0 simplifies the certification process and supports enhanced information exchange, creating more complete smart home solutions. The Zigbee 4.0 standard adds a "batch setup" feature, allowing users to configure multiple smart home devices. This enables batch activation and network configuration during large-scale installations, eliminating the need for individual setup and improving efficiency. Zigbee Direct is also now a standard feature, allowing smartphones to directly connect to and control nearby Zigbee devices using Bluetooth Low Energy, even without a gateway, connecting smart homes to the internet.
Suzi extends the range and reliability of IoT connectivity through remote Sub-GHz mesh networks. Based on the mature Zigbee network layer, it combines long-range performance, low power consumption, and multi-vendor interoperability, bringing new opportunities to residential, commercial, and industrial applications, providing robust and efficient communication in environments requiring extended coverage and minimal interference.
The Suzi certification program will open in the first half of 2026, enabling manufacturers to begin certifying related products.
