Nabu Casa Home Assistant Connect ZWA-2 vs Sonoff Dongle Lite MG21

Updated March 2026

Data from Amazon and official Nabu Casa and Sonoff sites.

2026 verdict

For 2026, Sonoff Dongle Lite MG21 is the stronger overall choice. What pushes it ahead is price, zigbee router, and thread border router, and its broader overall balance keeps the advantage from looking narrow. Pick Nabu Casa Home Assistant Connect ZWA-2 only when rating, z-wave controller, and antenna gain is the deciding factor for your setup. Overall, Sonoff Dongle Lite MG21 makes more sense for most people.

Nabu Casa

Nabu Casa Home Assistant Connect ZWA-2

$79.00

BUY NOW

Winner

Sonoff

Sonoff Dongle Lite MG21

$19.90

BUY NOW

Feature	Nabu Casa Home Assistant Connect ZWA-2	Sonoff Dongle Lite MG21	Winner
Price	$79.00	$19.90	Sonoff Dongle Lite MG21
Rating	4.8	4.7	Nabu Casa Home Assistant Connect ZWA-2
Zigbee Router	NO	YES	Sonoff Dongle Lite MG21
Z-Wave Controller	YES	NO	Nabu Casa Home Assistant Connect ZWA-2
Thread Border Router	NO	YES	Sonoff Dongle Lite MG21
Antenna Gain	+3.38dBi	+3dBi	Nabu Casa Home Assistant Connect ZWA-2
Amplifier Gain	+20dB	+20 dBm	Different strengths
Warranty	1 year	1 year	Tie
Power	USB	USB	Tie
Connectivity	USB	USB	Tie
Matter Bridge	NO	NO	Tie
Dual Network	NO	NO	Tie

Nabu Casa

Nabu Casa Home Assistant Connect ZWA-2

$79.00

BUY NOW

+ Rating: 4.8
+ Z-Wave Controller: YES
+ Antenna Gain: +3.38dBi
- Price: $79.00 vs $19.90
- Zigbee Router: NO vs YES

Winner

Sonoff

Sonoff Dongle Lite MG21

$19.90

BUY NOW

+ Price: $19.90
+ Zigbee Router: YES
+ Thread Border Router: YES
- Rating: 4.7 vs 4.8
- Z-Wave Controller: NO vs YES

Frequently Asked Questions (FAQ)

Which is better overall: Nabu Casa Home Assistant Connect ZWA-2 or Sonoff Dongle Lite MG21?: Sonoff Dongle Lite MG21 has the stronger overall profile in this comparison, especially for price, zigbee router, and thread border router.
What is the biggest difference between Nabu Casa Home Assistant Connect ZWA-2 and Sonoff Dongle Lite MG21?: Price is one of the clearest differences: Nabu Casa Home Assistant Connect ZWA-2 lists $79.00, while Sonoff Dongle Lite MG21 lists $19.90.
Which one looks better on price?: Nabu Casa Home Assistant Connect ZWA-2 is listed at $79.00, while Sonoff Dongle Lite MG21 is listed at $19.90. Sonoff Dongle Lite MG21 (better spec).
Who should buy Nabu Casa Home Assistant Connect ZWA-2?: Choose Nabu Casa Home Assistant Connect ZWA-2 if your priority is rating and z-wave controller and that matters more than price.
Who should buy Sonoff Dongle Lite MG21?: Choose Sonoff Dongle Lite MG21 if your priority is price and zigbee router and that matters more than rating.

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