Nabu Casa Home Assistant Connect ZWA-2 vs Smlight SLZB-MR3

Data from Amazon and official Nabu Casa and Smlight sites.

2026 verdict

For 2026, Smlight SLZB-MR3 is the stronger overall choice. Its clearest strengths are power, connectivity, and zigbee router, and it still looks stronger on thread border router and antenna gain. Pick Nabu Casa Home Assistant Connect ZWA-2 only when price, rating, and z-wave controller is the deciding factor for your setup. For the average buyer, Smlight SLZB-MR3 is the safer choice.

Nabu Casa

Nabu Casa Home Assistant Connect ZWA-2

$79.00

BUY NOW

Winner

Smlight

Smlight SLZB-MR3

$105.99

BUY NOW

Feature	Nabu Casa Home Assistant Connect ZWA-2	Smlight SLZB-MR3	Winner
Price	$79.00	$105.99	Nabu Casa Home Assistant Connect ZWA-2
Rating	4.8	4.7	Nabu Casa Home Assistant Connect ZWA-2
Power	USB	USB, PoE	Smlight SLZB-MR3
Connectivity	USB	USB, Ethernet, 2.4 GHz Wifi	Smlight SLZB-MR3
Zigbee Router	NO	YES	Smlight SLZB-MR3
Z-Wave Controller	YES	NO	Nabu Casa Home Assistant Connect ZWA-2
Thread Border Router	NO	YES	Smlight SLZB-MR3
Antenna Gain	+3.38dBi	+5dBi	Smlight SLZB-MR3
Dual Network	NO	YES	Smlight SLZB-MR3
Bluetooth Proxy	NO	YES	Smlight SLZB-MR3
Warranty	1 year	1 year	Tie
Matter Bridge	NO	NO	Tie

Nabu Casa

Nabu Casa Home Assistant Connect ZWA-2

$79.00

BUY NOW

+ Price: $79.00
+ Rating: 4.8
+ Z-Wave Controller: YES
- Power: USB vs USB, PoE
- Connectivity: USB vs USB, Ethernet, 2.4 GHz Wifi

Winner

Smlight

Smlight SLZB-MR3

$105.99

BUY NOW

+ Power: USB, PoE
+ Connectivity: USB, Ethernet, 2.4 GHz Wifi
+ Zigbee Router: YES
- Price: $105.99 vs $79.00
- Rating: 4.7 vs 4.8

Frequently Asked Questions (FAQ)

Which is better overall: Nabu Casa Home Assistant Connect ZWA-2 or Smlight SLZB-MR3?: Smlight SLZB-MR3 has the stronger overall profile in this comparison, especially for power, connectivity, and zigbee router.
What is the biggest difference between Nabu Casa Home Assistant Connect ZWA-2 and Smlight SLZB-MR3?: Price is one of the clearest differences: Nabu Casa Home Assistant Connect ZWA-2 lists $79.00, while Smlight SLZB-MR3 lists $105.99.
Which one looks better on price?: Nabu Casa Home Assistant Connect ZWA-2 is listed at $79.00, while Smlight SLZB-MR3 is listed at $105.99. Nabu Casa Home Assistant Connect ZWA-2 (better spec).
Who should buy Nabu Casa Home Assistant Connect ZWA-2?: Choose Nabu Casa Home Assistant Connect ZWA-2 if your priority is price and rating and that matters more than power.
Who should buy Smlight SLZB-MR3?: Choose Smlight SLZB-MR3 if your priority is power and connectivity and that matters more than price.

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