Smlight SLZB-07P10 vs Sonoff Dongle Lite MG21

For most buyers the Sonoff Dongle Lite MG21 is the smarter pick, as it is cheaper and carries a higher owner rating. The Smlight SLZB-07P10 is worth it mainly if you want its high-power TI CC2652P10 radio for a larger network; otherwise the two are very similar.

Not much, honestly, both are USB-only Zigbee 3.0 coordinators that can run Thread. The main split is the radio: the SLZB-07P10 uses the high-power TI CC2652P10, while the Dongle Lite MG21 uses the Silicon Labs EFR32MG21 and includes a USB extension cable. Neither does Z-Wave or network connectivity.

Yes. Both the SLZB-07P10 and the Dongle Lite MG21 can be flashed to serve as a Thread border router for Matter in addition to being Zigbee 3.0 coordinators. Both plug into a Home Assistant host over USB and pair devices via ZHA or Zigbee2MQTT.

Buy the Sonoff Dongle Lite MG21 if you want the most affordable, well-rated way into a local Zigbee smart home. It is a compact, nearly plug-and-play USB coordinator (flashable for Thread) that ships with a USB extension cable to cut interference, great for a first build.

Buy the Smlight SLZB-07P10 if you want the high-power TI CC2652P10 radio for stronger range on a larger Zigbee network and are comfortable flashing its firmware. It is a compact USB coordinator that can also run as a Thread radio, though it costs more than the Dongle Lite MG21.