"The Connectivity Standards Alliance has released Zigbee 4.0, an updated version of its wireless mesh networking standard with better security, improved battery life, and batch setup of new devices like smart lights, switches, and plugs. It's also announcing a new feature called Suzi, which is short for Sub-GHz and Zigbee."
"While Zigbee smart home devices typically operate on the 2.4GHz band, which can experience signal loss caused by obstacles like thick walls, Suzi-branded devices will be able to work on the European 800 MHz and North American 900 MHz frequency bands. That way, the group says they'll offer coverage for smart devices installed outside and farther away from a home, without the need for additional hardware to extend the networks."
Zigbee 4.0 is an updated wireless mesh networking standard from the Connectivity Standards Alliance that adds enhanced security, improved battery life, and batch setup for smart lights, switches, and plugs. Devices will support direct setup from smartphones to simplify installation and provisioning. The update introduces Suzi (Sub-GHz and Zigbee), enabling operation on European 800 MHz and North American 900 MHz bands to reduce signal loss from obstacles and extend coverage to outdoor or distant devices without additional range-extending hardware. Suzi complements existing 802.15.4-based profiles such as Zigbee Smart Energy and Zigbee Green Power for low-power, energy-harvesting devices.
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