Dongles · Head to head

Nabu Casa Home Assistant Connect ZBT-2 vs Smlight SLZB-MR1

Full Smart Dongles comparison in 2026

Updated October 2026
Data from Amazon and official Nabu Casa and Smlight sites.
2026 verdict
Smlight SLZB-MR1 edges out Nabu Casa Home Assistant Connect ZBT-2 in 2026, led by power, connectivity, and zigbee router.
Smlight SLZB-MR1
Winner
Smlight SLZB-MR1
$101.99
Buy on Amazon USA
What pushes it ahead is power, connectivity, and zigbee router, and transmit power and antenna gain keep the advantage from looking narrow. Nabu Casa Home Assistant Connect ZBT-2 is still relevant if you care most about rating, but Smlight SLZB-MR1 is the stronger recommendation overall. As a general recommendation, Smlight SLZB-MR1 comes out on top.
vs
News by email

Still comparing? Get what's new by email

New releases and the smart home news worth knowing, in your inbox.

Smart home news and new releases, straight to your inbox

New releases, comparisons and the smart home news worth knowing.

No spam. Unsubscribe in one click.

Your subscription could not be saved. Please try again.
Please enter a valid email address.
Tick the box above to finish signing up.
We couldn't verify you're human. Please try again.
Too many attempts. Please try again in an hour.
Your subscription has been successful.
FeatureNabu Casa Home Assistant Connect ZBT-2Smlight SLZB-MR1Winner
Rating4.74.4Nabu Casa Home Assistant Connect ZBT-2
PowerUSBUSB, PoESmlight SLZB-MR1
ConnectivityUSBUSB, Ethernet, 2.4 GHz WiFiSmlight SLZB-MR1
Zigbee RouterNOYESSmlight SLZB-MR1
Transmit Power+10dBm+20dBmSmlight SLZB-MR1
Antenna Gain+4.16dBi+5dBSmlight SLZB-MR1
Dual NetworkNOYESSmlight SLZB-MR1
Bluetooth ProxyNOYESSmlight SLZB-MR1
Zigbee Chip ModelEFR32MG24EFR32MG21 / CC2652P7Different strengths
Warranty1 year1 yearTie
Z-Wave ControllerNONOTie
Thread Border RouterYESYESTie

Frequently Asked Questions

Which is better overall: Nabu Casa Home Assistant Connect ZBT-2 or Smlight SLZB-MR1?

Smlight SLZB-MR1 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 ZBT-2 and Smlight SLZB-MR1?

Rating is one of the clearest differences: Nabu Casa Home Assistant Connect ZBT-2 lists 4.7, while Smlight SLZB-MR1 lists 4.4.

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

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

Who should buy Smlight SLZB-MR1?

Choose Smlight SLZB-MR1 if your priority is power and connectivity and that matters more than rating.

Full comparison table

Compare all 36 Dongles side by side

You are looking at two of them. The full table lines up all Dongles in the catalog with the same specs, so you can filter by what you need and sort by price or rating.

  • 36 Dongles
  • 32 specs compared
  • 29 filters
Open the full comparison
More Dongles

Top Dongles to compare next

36 Zigbee, Thread and Z-Wave dongles compared: Smlight, Sonoff, Aeotec, Nabu Casa and more. Chipsets, antenna range, firmware and Home Assistant support.

All Dongles
Nabu Casa

More Nabu Casa products

A sharper look at other Nabu Casa products worth comparing.

Explore Nabu Casa
Smlight

More Smlight products

A sharper look at other Smlight products worth comparing.

Explore Smlight
Independent · Not sponsoredBrands never pay for placement or rankings. Affiliate commissions never influence our comparisons.

As an Amazon Associate I earn from qualifying purchases.

CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED ‘AS IS’ AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

© 2026 Smart Home Compared
Search