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Dongles · Head to head

Nabu Casa Home Assistant Connect ZWA-2 vs Smlight SLZB-MR4

Full Smart Dongles comparison in 2026

Updated October 2026
Data from Amazon and official Nabu Casa and Smlight sites.
2026 verdict
Smlight SLZB-MR4 beats Nabu Casa Home Assistant Connect ZWA-2 in 2026, with its clearest edge on power, connectivity, and zigbee router.
Smlight SLZB-MR4
Winner
Smlight SLZB-MR4
$130.00
Buy on Amazon USACheck price
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 are the deciding factor for your setup. That is why Smlight SLZB-MR4 wins the verdict here.
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FeatureNabu Casa Home Assistant Connect ZWA-2Smlight SLZB-MR4Winner
Price$79.00$130.00Nabu Casa Home Assistant Connect ZWA-2
Rating4.64.0Nabu Casa Home Assistant Connect ZWA-2
PowerUSBUSB, PoESmlight SLZB-MR4
ConnectivityUSBUSB, Ethernet, 2.4 GHz WiFiSmlight SLZB-MR4
Zigbee RouterNOYESSmlight SLZB-MR4
Z-Wave ControllerYESNONabu Casa Home Assistant Connect ZWA-2
Thread Border RouterNOYESSmlight SLZB-MR4
Antenna Gain+3.38dBi+5dBSmlight SLZB-MR4
Dual NetworkNOYESSmlight SLZB-MR4
Bluetooth ProxyNOYESSmlight SLZB-MR4
Warranty1 year1 yearTie
Matter BridgeNONOTie

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Nabu Casa Home Assistant Connect ZWA-2
  • Smlight SLZB-MR4

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Frequently Asked Questions

Which is better overall: Nabu Casa Home Assistant Connect ZWA-2 or Smlight SLZB-MR4?

Smlight SLZB-MR4 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-MR4?

Price is one of the clearest differences: Nabu Casa Home Assistant Connect ZWA-2 lists $79.00, while Smlight SLZB-MR4 lists $130.00.

Which one looks better on price?

Nabu Casa Home Assistant Connect ZWA-2 is listed at $79.00, while Smlight SLZB-MR4 is listed at $130.00. 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-MR4?

Choose Smlight SLZB-MR4 if your priority is power and connectivity and that matters more than price.

Full comparison table

Compare all 36 Dongles side by side

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  • 36 Dongles
  • 32 specs compared
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