Dongles · Head to head

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

Full Smart Dongles comparison in 2026

Data from Amazon and official Nabu Casa and Smlight sites.
2026 verdict
Between Smlight SLZB-MR5U and Nabu Casa Home Assistant Connect ZWA-2, Smlight SLZB-MR5U is the better overall pick in 2026, leading on power, connectivity, and zigbee router. 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.
vs
FeatureNabu Casa Home Assistant Connect ZWA-2Smlight SLZB-MR5UWinner
PowerUSBUSB, PoESmlight SLZB-MR5U
ConnectivityUSBUSB, Ethernet, 2.4 GHz WiFiSmlight SLZB-MR5U
Zigbee RouterNOYESSmlight SLZB-MR5U
Z-Wave ControllerYESNONabu Casa Home Assistant Connect ZWA-2
Thread Border RouterNOYESSmlight SLZB-MR5U
Antenna Gain+3.38dBi+5dBiSmlight SLZB-MR5U
Dual NetworkNOYESSmlight SLZB-MR5U
Bluetooth ProxyNOYESSmlight SLZB-MR5U
Warranty1 year1 yearTie
Matter BridgeNONOTie
Amplifier Gain+20dB+20dBTie

Frequently Asked Questions

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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