Nabu Casa Home Assistant Connect ZBT-2 vs Sonoff ZBDongle-E

For a cheap, dependable pure-Zigbee coordinator the Sonoff ZBDongle-E is the value winner, with a lower price and a longer 2 year warranty. The Nabu Casa Home Assistant Connect ZBT-2 is the pick if you also need Thread/Matter, since it doubles as a Thread border router and has a stronger antenna and higher rating.

Thread support. The Nabu Casa Home Assistant Connect ZBT-2 is a Zigbee coordinator and a Thread border router, while the Sonoff ZBDongle-E is Zigbee only, with no Thread, Z-Wave or Matter. If Thread matters, the ZBT-2 is the one that covers it.

The Sonoff ZBDongle-E carries a 2 year warranty versus 1 year on the ZBT-2, but the Nabu Casa Home Assistant Connect ZBT-2 has the stronger antenna at +4.16dBi against the ZBDongle-E's 2dBi. Both use an external antenna and a comparable amplifier.

Yes. The Sonoff ZBDongle-E ships pre-flashed and is recognized instantly by ZHA, and the Nabu Casa Home Assistant Connect ZBT-2 is the official Nabu Casa hardware, recognized automatically, especially on Home Assistant Green. Both work with Zigbee2MQTT too.

Buy the ZBT-2 if you want Zigbee plus Thread/Matter in one official radio with a stronger antenna and the smoothest Home Assistant setup. It has no Z-Wave and a shorter 1 year warranty.

Buy the Sonoff ZBDongle-E if you want the most affordable, well-proven Zigbee coordinator for Home Assistant, with a 2 year warranty, and you do not need Thread. It is a favorite for replacing brand hubs like the Philips Hue Bridge.