Nabu Casa Home Assistant Connect ZWA-2 vs Sonoff ZBDongle-P

The Nabu Casa Home Assistant Connect ZWA-2 wins on points, thanks to its higher owner rating, its Z-Wave controller with a stronger antenna, and official Nabu Casa integration. But the two cover different protocols: the Nabu Casa Home Assistant Connect ZWA-2 handles Z-Wave, while the Sonoff ZBDongle-P is a Zigbee coordinator, so pick based on which protocol your devices use.

Protocol. The Nabu Casa Home Assistant Connect ZWA-2 does Z-Wave 800 only, while the Sonoff ZBDongle-P does Zigbee only (and also acts as a Zigbee router). Neither supports the other's protocol, so your existing devices decide which one you need.

The Sonoff ZBDongle-P has the longer warranty at 2 years versus 1 year on the Nabu Casa Home Assistant Connect ZWA-2, but the ZWA-2 has the stronger antenna at +3.38dBi against 2 dBi on the ZBDongle-P, along with the higher owner rating.

Both are straightforward. The Nabu Casa Home Assistant Connect ZWA-2 is Nabu Casa's official hardware, recognized automatically and run via Z-Wave JS, while the Sonoff ZBDongle-P is detected on reboot and works cleanly with ZHA or Zigbee2MQTT, usually with no firmware flash.

Buy the Nabu Casa Home Assistant Connect ZWA-2 if you run Z-Wave and want the official controller with the higher owner rating, the stronger antenna and fully local Z-Wave JS control. It has no Zigbee.

Buy the Sonoff ZBDongle-P if you want the proven, high-power CC2652P Zigbee coordinator for Home Assistant at a lower price with a 2 year warranty, and value that it doubles as a Zigbee router. It has no Z-Wave.