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Z-wave is a protocol for communication among devices used for home automation. It uses RF for signaling and control. Zwave was developed by Zensys, Inc. a start-up company based in Denmark. Zwave was released in 2004.

Z-Wave vs ZigBee

Z-Wave and ZigBee are not compatible with each other. Zigbee operates on the 915 MHz frequency (in the US), Z-Wave operates at 908.42 MHz. Zigbee is faster with data rates at 40-250 kbps versus Z-Wave's 9.6-100kbps.

Zigbee can also support way, way more devices – 65,000+ devices, or nodes on the mesh network, in fact. Z-Wave on the other hand caps out at 232 devices, which is still plenty for most households.