Sonoff Dongle Lite MG21 vs Sonoff ZBDongle-P

The Sonoff Dongle Lite MG21 wins overall as the more affordable, higher-rated stick that also flashes into a Thread border router and has a bit more antenna gain. The Sonoff ZBDongle-P remains excellent, with the community-favorite CC2652P chip, a +20dBm amplifier and a longer 2-year warranty for bigger homes.

Their chips and Thread support. The Dongle Lite MG21 uses the Silicon Labs EFR32MG21 and can flash into a Thread border router, while the ZBDongle-P uses the Texas Instruments CC2652P with a +20dBm amplifier but no Thread. Both are Zigbee 3.0 coordinators for Home Assistant.

The Sonoff ZBDongle-P is the classic choice for range, pairing the CC2652P with an external antenna and a +20dBm amplifier to cover multi-floor homes. The Dongle Lite MG21 has a higher +3dBi antenna and works well too, but the ZBDongle-P is the long-proven big-home coordinator.

Buy the Sonoff Dongle Lite MG21 if you want the cheaper stick with the option to flash it for Thread and Matter, plus a little extra antenna gain, for a near plug-and-play Zigbee setup in Home Assistant.

Buy the Sonoff ZBDongle-P if you want the community's reference Zigbee coordinator on the well-supported CC2652P chip, with a +20dBm amplifier for range and a longer 2-year warranty. It does no Thread or Z-Wave, and its aluminum case may want a short USB extension for clearance.