Smlight SLZB-06p7U vs Sonoff ZBDongle-E

The Smlight SLZB-06p7U is the more capable dongle, adding Ethernet, PoE and Wi-Fi placement, a stronger +5dBi antenna, a Thread border router and a Bluetooth proxy. The Sonoff ZBDongle-E is cheaper and carries a 2-year warranty, so it is the value pick for a simple USB Zigbee setup.

Connectivity and scope. The SLZB-06p7U is a network coordinator (Ethernet, PoE, Wi-Fi and USB) that also does Thread and Bluetooth proxy, while the ZBDongle-E is a USB-only Zigbee stick with neither. Both are Zigbee 3.0 coordinators for Home Assistant; neither supports Z-Wave.

The Sonoff ZBDongle-E, at 2 years, compared with 1 year on the Smlight SLZB-06p7U. The ZBDongle-E is also one of the most widely used budget Zigbee coordinators, which is part of its appeal for first-time builders.

Buy the Smlight SLZB-06p7U if you want to place your Zigbee coordinator centrally over Ethernet or PoE for better range, with a Thread border router and Bluetooth proxy built in. It is the choice when placement freedom and extra roles matter more than price.

Buy the Sonoff ZBDongle-E if you want the most affordable, proven, plug-and-play USB Zigbee coordinator with a 2-year warranty. It ships pre-flashed, is recognized instantly by Home Assistant's ZHA, and is a common way to replace brand bridges like Philips Hue.