There are thousands of interoperable
Smart Plug can be included and operated in any Z-Wave network with other Z-Wave certified devices from other manufacturers and/or other applications. All non-battery operated nodes within the network will act as repeaters regardless of vendor to increase reliability of the network.
Smart Plug is also a security Z-Wave device and supports the Over The Air (OTA) feature for the product’s firmware upgrade.
If you want your Smart Plug to be a security device that use secure/encrypted message to communicate in a Z-Wave network, then a security enabled Z-Wave controller is needed.