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

Data from Amazon and official Nabu Casa and Smlight sites.

2026 verdict

In 2026, the recommendation leans toward Smlight SLZB-MR5U. It has the clearer edge on power, connectivity, and zigbee router, and it stays ahead on amplifier gain and antenna gain. Nabu Casa Home Assistant Connect ZBT-2 can still be the right pick, but only if its specific feature mix outweighs the wider strengths of Smlight SLZB-MR5U. Overall, Smlight SLZB-MR5U makes more sense for most people.

Nabu Casa

Nabu Casa Home Assistant Connect ZBT-2

$65.00

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Winner

Smlight

Smlight SLZB-MR5U

Price unavailable right now

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Feature	Nabu Casa Home Assistant Connect ZBT-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
Amplifier Gain	10 dBm	+20dB	Smlight SLZB-MR5U
Antenna Gain	+4.16dBi	+5dBi	Smlight SLZB-MR5U
Dual Network	NO	YES	Smlight SLZB-MR5U
Bluetooth Proxy	NO	YES	Smlight SLZB-MR5U
Warranty	1 year	1 year	Tie
Zigbee Chip Model	EFR32MG24	EFR32MG24	Tie
Z-Wave Controller	NO	NO	Tie
Thread Border Router	YES	YES	Tie
Matter Bridge	NO	NO	Tie

Nabu Casa

Nabu Casa Home Assistant Connect ZBT-2

$65.00

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- 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

Frequently Asked Questions (FAQ)

Which is better overall: Nabu Casa Home Assistant Connect ZBT-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 ZBT-2 and Smlight SLZB-MR5U?: Power is one of the clearest differences: Nabu Casa Home Assistant Connect ZBT-2 lists USB, while Smlight SLZB-MR5U lists USB, PoE.
Who should buy Nabu Casa Home Assistant Connect ZBT-2?: Choose Nabu Casa Home Assistant Connect ZBT-2 if your priority is its specific strengths 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 the competing advantages.

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