SONOFF Zigbee 3.0 & Thread Dongle Lite (EFR32MG21) | USB Stick Coordinator for Home Assistant & Zigbee2MQTT | Compact Gateway…
SONOFF
Best for
Best budget
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Based on 1 trusted source
Current price
$19.90
Updated May 18, 2026 · 1 min read
Sources behind this verdict
10 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, the SONOFF Zigbee 3.0 & Thread Dongle Lite is the cheap-and-cheerful option for Home Assistant users who want to add Thread (or Zigbee) without buying a hub. r/homeassistant threads describe it as "perfectly serviceable" at the price, and one comparative review of SONOFF's newer Dongle-M MG24 still treats this Lite version as a reasonable entry point for budget builds. The disagreement is louder here than for the other picks.
What reviewers liked
- At roughly $20, dramatically undercuts every other Thread option in this ranking
- r/homeassistant threads acknowledge it as serviceable and reasonable for budget-conscious HA builds
- Compact USB form factor with extension cable for placement away from interference
- Supports both Zigbee and Thread roles depending on firmware (in theory)
Where it falls short
- r/homeassistant has documented threads flagging compatibility issues, battery drain on sensors, and lost connections
- At least one user report indicates the OpenThread firmware flashing path didn't work cleanly
- Not appropriate for non-Home-Assistant users — there's no plug-and-play Apple Home, Alexa, or Google Home path
- Small Amazon review base (250 reviews) provides less corroboration than the other picks here
Across the reviewers we read, the SONOFF Zigbee 3.0 & Thread Dongle Lite is the cheap-and-cheerful option for Home Assistant users who want to add Thread (or Zigbee) without buying a hub. r/homeassistant threads describe it as "perfectly serviceable" at the price, and one comparative review of SONOFF's newer Dongle-M MG24 still treats this Lite version as a reasonable entry point for budget builds.
The disagreement is louder here than for the other picks. One r/homeassistant review-thread, titled around an "awful experience," flags battery drain on connected sensors and intermittent connection loss; another openly describes the broader SONOFF dongle lineup as "disappointing" for compatibility versus alternatives like zzh. A separate r/homeassistant thread also reports that the Thread (OpenThread) firmware path didn't cleanly take, with HA still recognizing the dongle as Zigbee ZHA after flashing.
The upshot: for tinkerers comfortable with firmware flashing and willing to accept some compatibility roughness, this is the cheapest path to Thread in Home Assistant by a wide margin. For mainstream users on Apple Home, Google Home, or Alexa, the reviewers we read would steer toward a proper hub like the Aqara M100 instead.
- Reliable EFR32MG21 chip. Built with the proven EFR32MG21 chipset, this USB dongle offers low-latency communication and excellent compatibility with Zigbee 3.0 devices—ideal for building a dependable smart-home network.
- Compact & Easy to Install. The lightweight, compact design fits conveniently in crowded USB ports on PCs, mini-servers, or Raspberry Pi, making it suitable for any smart-home setup.
- Wide platform compatibility. Fully compatible with Home Assistant, Zigbee2MQTT, openHAB, and more. Supports a wide range of Zigbee 3.0 brands, including Philips Hue, Aqara, IKEA Tradfri, and SONOFF, enabling flexible device integration.
- Flexible firmware flashing. Switch easily between Zigbee Coordinator, Router mode, or Thread RCP by flashing firmware through the SONOFF Dongle Flasher or official Add-on tools.
- Includes USB extension cable. Comes with a USB extension cable to help position the dongle away from USB 3.0 interference sources, improving signal strength and ensuring more stable Zigbee and Thread network performance.
Saw the Sonoff Zigbee and Thread dongle Lite on Amazon for 19 USD. I just started looking for a thread dongle because I only have the zigbee ...
tl;dr - "disappointing", decent range but struggles with compatibility, stick to zzh or even cc2531. Edit: see below, the review is not the ...
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“SONOFF Zigbee 3.0 & Thread Dongle Lite Review” · YouTube
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