Nabu Casa Home Assistant Connect ZWA-2 vs Smlight SLZB-MR2 comparison

Data from Amazon and official Nabu Casa and Smlight sites.

2026 verdict

Smlight SLZB-MR2 beats Nabu Casa Home Assistant Connect ZWA-2 in 2026, with its clearest edge on rating, power, and connectivity. Its clearest strengths are rating, power, and connectivity, and it still looks stronger on zigbee router and thread border router. Pick Nabu Casa Home Assistant Connect ZWA-2 only when price and Z-Wave controller are the deciding factor for your setup. That makes Smlight SLZB-MR2 the clearer recommendation in 2026.

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Feature	Nabu Casa Home Assistant Connect ZWA-2	Smlight SLZB-MR2	Winner
Price	$79.00	£160.48	Nabu Casa Home Assistant Connect ZWA-2
Rating	4.5	4.6	Smlight SLZB-MR2
Power	USB	USB, PoE	Smlight SLZB-MR2
Connectivity	USB	USB, Ethernet, 2.4 GHz WiFi	Smlight SLZB-MR2
Zigbee Router	NO	YES	Smlight SLZB-MR2
Z-Wave Controller	YES	NO	Nabu Casa Home Assistant Connect ZWA-2
Thread Border Router	NO	YES	Smlight SLZB-MR2
Antenna Gain	+3.38dBi	+5dBi	Smlight SLZB-MR2
Dual Network	NO	YES	Smlight SLZB-MR2
Bluetooth Proxy	NO	YES	Smlight SLZB-MR2
Warranty	1 year	1 year	Tie
Matter Bridge	NO	NO	Tie

Nabu Casa

Nabu Casa Home Assistant Connect ZWA-2

$79.00

Buy on Amazon USA

+ Price: $79.00
+ Z-Wave Controller: YES
- Rating: 4.5 vs 4.6
- Power: USB vs USB, PoE

Winner

Smlight

Smlight SLZB-MR2

£160.48

Buy on Amazon UK

+ Rating: 4.6
+ Power: USB, PoE
+ Connectivity: USB, Ethernet, 2.4 GHz WiFi
- Price: £160.48 vs $79.00
- Z-Wave Controller: NO vs YES

Frequently Asked Questions

Which is better overall: Nabu Casa Home Assistant Connect ZWA-2 or Smlight SLZB-MR2?

Smlight SLZB-MR2 has the stronger overall profile in this comparison, especially for rating, power, and connectivity.

What is the biggest difference between Nabu Casa Home Assistant Connect ZWA-2 and Smlight SLZB-MR2?

Price is one of the clearest differences: Nabu Casa Home Assistant Connect ZWA-2 lists $79.00, while Smlight SLZB-MR2 lists £160.48.

Which one looks better on price?

Nabu Casa Home Assistant Connect ZWA-2 is listed at $79.00, while Smlight SLZB-MR2 is listed at £160.48. 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 Z-Wave controller and that matters more than rating.

Who should buy Smlight SLZB-MR2?

Choose Smlight SLZB-MR2 if your priority is rating and power and that matters more than price.

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