Smlight SLZB-06p7U vs Sonoff ZBDongle-P

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

Connectivity, since both use TI CC2652P-family radios. The SLZB-06p7U is a network coordinator (Ethernet, PoE, Wi-Fi and USB) that also does Thread and Bluetooth proxy, while the ZBDongle-P is a USB-only stick with neither. Neither supports Z-Wave.

Yes, closely related ones: the SLZB-06p7U runs the TI CC2652P7 and the ZBDongle-P the CC2652P, both well-supported for Home Assistant. The SLZB-06p7U wraps its radio in network connectivity, a stronger antenna, Thread and a Bluetooth proxy, while the ZBDongle-P keeps it a simpler, cheaper USB stick.

Buy the Smlight SLZB-06p7U if you want to mount your Zigbee coordinator centrally over Ethernet or PoE for better range, with Thread and Bluetooth proxy support. It is the choice when placement freedom and extra features outweigh a lower price.

Buy the Sonoff ZBDongle-P if you want the community's proven, high-power USB Zigbee coordinator at a lower price and with a 2-year warranty. It works cleanly with ZHA or Zigbee2MQTT across almost any host and covers multi-floor homes.