Matter-enabled smart plugs work with most of the widely used home automation platforms, such as Alexa, Google, HomeKit, and SmartThings, but the Shelly Plug US Gen4 adds another dimension with support for the Zigbee wireless protocol (along with Wi-Fi and Bluetooth). This single-outlet plug has a compact design, supports voice control, and offers detailed power usage reports. Moreover, it will automatically shut down if your power consumption exceeds a threshold.