Nabu Casa Home Assistant Connect ZWA-2 vs Smlight SLZB-MR5U

Data from Amazon and official Nabu Casa and Smlight sites.

2026 verdict

In 2026, Smlight SLZB-MR5U is the better overall pick. The comparison tilts its way because of power, connectivity, and zigbee router, with thread border router and antenna gain keeping it in front. Pick Nabu Casa Home Assistant Connect ZWA-2 only when z-wave controller is the deciding factor for your setup. That makes Smlight SLZB-MR5U the clearer recommendation in 2026.

Nabu Casa

Nabu Casa Home Assistant Connect ZWA-2

$79.00

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Winner

Smlight

Smlight SLZB-MR5U

Price unavailable right now

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Feature	Nabu Casa Home Assistant Connect ZWA-2	Smlight SLZB-MR5U	Winner
Power	USB	USB, PoE	Smlight SLZB-MR5U
Connectivity	USB	USB, Ethernet, 2.4 GHz Wifi	Smlight SLZB-MR5U
Zigbee Router	NO	YES	Smlight SLZB-MR5U
Z-Wave Controller	YES	NO	Nabu Casa Home Assistant Connect ZWA-2
Thread Border Router	NO	YES	Smlight SLZB-MR5U
Antenna Gain	+3.38dBi	+5dBi	Smlight SLZB-MR5U
Dual Network	NO	YES	Smlight SLZB-MR5U
Bluetooth Proxy	NO	YES	Smlight SLZB-MR5U
Warranty	1 year	1 year	Tie
Matter Bridge	NO	NO	Tie
Amplifier Gain	+20dB	+20dB	Tie

Nabu Casa

Nabu Casa Home Assistant Connect ZWA-2

$79.00

BUY NOW

+ Z-Wave Controller: YES
- Power: USB vs USB, PoE
- Connectivity: USB vs USB, Ethernet, 2.4 GHz Wifi

Winner

Smlight

Smlight SLZB-MR5U

Price unavailable right now

BUY NOW

+ Power: USB, PoE
+ Connectivity: USB, Ethernet, 2.4 GHz Wifi
+ Zigbee Router: YES
- Z-Wave Controller: NO vs YES

Frequently Asked Questions (FAQ)

Which is better overall: Nabu Casa Home Assistant Connect ZWA-2 or Smlight SLZB-MR5U?: Smlight SLZB-MR5U 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-MR5U?: Power is one of the clearest differences: Nabu Casa Home Assistant Connect ZWA-2 lists USB, while Smlight SLZB-MR5U lists USB, PoE.
Who should buy Nabu Casa Home Assistant Connect ZWA-2?: Choose Nabu Casa Home Assistant Connect ZWA-2 if your priority is z-wave controller and that matters more than power.
Who should buy Smlight SLZB-MR5U?: Choose Smlight SLZB-MR5U if your priority is power and connectivity and that matters more than z-wave controller.

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