Aeotec Z-Stick 10 Pro vs Sonoff Dongle Lite MG21

The Sonoff Dongle Lite MG21 is the better everyday value, being the more affordable and higher-rated Zigbee coordinator with optional Thread support and a bundled USB extension cable. The Aeotec Z-Stick 10 Pro adds a Z-Wave 800 controller, so it wins for Z-Wave users, but for a low-cost Zigbee stick the Dongle Lite MG21 leads.

Z-Wave. The Aeotec Z-Stick 10 Pro includes a Z-Wave 800 controller alongside Zigbee, while the Sonoff Dongle Lite MG21 is Zigbee only (flashable to Thread). If you need Z-Wave, that settles it; if you only run Zigbee, the cheaper Sonoff covers you.

The Sonoff Dongle Lite MG21 can be flashed to serve as a Thread border router for Matter, though it ships set up for Zigbee. The Aeotec Z-Stick 10 Pro does not support Thread or Matter, covering only Z-Wave and Zigbee.

The Sonoff Dongle Lite MG21 is nearly plug-and-play for Zigbee in Home Assistant and includes a USB extension cable to cut interference. The Aeotec Z-Stick 10 Pro usually needs a firmware update to enable its Zigbee radio, with a Windows-only guide, so it takes a bit more setup.

Buy the Sonoff Dongle Lite MG21 if you want an affordable, reliable Zigbee coordinator or router for Home Assistant, optionally flashable for Thread, at the lowest cost. It is Zigbee and Thread only, with no Z-Wave.

Buy the Aeotec Z-Stick 10 Pro if you need Z-Wave and Zigbee together in one stick for a cloud-free Home Assistant setup and are ready for the initial Zigbee firmware step.