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Dongles · Head to head

Nabu Casa Home Assistant Connect ZBT-2 vs Smlight SLZB-MR1U

Full Smart Dongles comparison in 2026

Updated October 2026
Data from Amazon and official Nabu Casa and Smlight sites.
2026 verdict
Smlight SLZB-MR1U edges out Nabu Casa Home Assistant Connect ZBT-2 in 2026, led by rating, power, and connectivity.
Smlight SLZB-MR1U
Winner
Smlight SLZB-MR1U
$102.99
Buy on Amazon USACheck price
What pushes it ahead is rating, power, and connectivity, and zigbee router and transmit power keep the advantage from looking narrow. Nabu Casa Home Assistant Connect ZBT-2 is the better fit only for buyers who prioritize price above everything else here. For most setups, Smlight SLZB-MR1U is the smarter buy.
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FeatureNabu Casa Home Assistant Connect ZBT-2Smlight SLZB-MR1UWinner
Price$65.00$102.99Nabu Casa Home Assistant Connect ZBT-2
Rating4.74.8Smlight SLZB-MR1U
PowerUSBUSB, PoESmlight SLZB-MR1U
ConnectivityUSBUSB, Ethernet, 2.4 GHz WiFiSmlight SLZB-MR1U
Zigbee RouterNOYESSmlight SLZB-MR1U
Transmit Power+10dBm+20dBmSmlight SLZB-MR1U
Antenna Gain+4.16dBi+5dBSmlight SLZB-MR1U
Dual NetworkNOYESSmlight SLZB-MR1U
Bluetooth ProxyNOYESSmlight SLZB-MR1U
Zigbee Chip ModelEFR32MG24EFR32MG21 / CC2652P7Different strengths
Warranty1 year1 yearTie
Z-Wave ControllerNONOTie

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 ZBT-2
  • Smlight SLZB-MR1U

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Frequently Asked Questions

Which is better overall: Nabu Casa Home Assistant Connect ZBT-2 or Smlight SLZB-MR1U?

Smlight SLZB-MR1U 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 ZBT-2 and Smlight SLZB-MR1U?

Price is one of the clearest differences: Nabu Casa Home Assistant Connect ZBT-2 lists $65.00, while Smlight SLZB-MR1U lists $102.99.

Which one looks better on price?

Nabu Casa Home Assistant Connect ZBT-2 is listed at $65.00, while Smlight SLZB-MR1U is listed at $102.99. Nabu Casa Home Assistant Connect ZBT-2 (better spec).

Who should buy Nabu Casa Home Assistant Connect ZBT-2?

Choose Nabu Casa Home Assistant Connect ZBT-2 if your priority is price and that matters more than rating.

Who should buy Smlight SLZB-MR1U?

Choose Smlight SLZB-MR1U if your priority is rating and power 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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