Nabu Casa Home Assistant Connect ZBT-2 vs Smlight SLZB Ultima comparison

Data from Amazon and official Nabu Casa and Smlight sites.

2026 verdict

Smlight SLZB Ultima edges out Nabu Casa Home Assistant Connect ZBT-2 in 2026, led by power, connectivity, and zigbee router. Its biggest wins come from power, connectivity, and zigbee router, and Z-Wave controller and dual network add more confidence to the verdict. You should still consider Nabu Casa Home Assistant Connect ZBT-2 if price and rating matter more than raw overall balance. That is enough to make Smlight SLZB Ultima the better pick for most buyers.

Feature	Nabu Casa Home Assistant Connect ZBT-2	Smlight SLZB Ultima	Winner
Price	$65.00	$95.99	Nabu Casa Home Assistant Connect ZBT-2
Rating	4.8	2.0	Nabu Casa Home Assistant Connect ZBT-2
Power	USB	USB, PoE	Smlight SLZB Ultima
Connectivity	USB	USB, Ethernet, 2.4 GHz WiFi	Smlight SLZB Ultima
Zigbee Router	NO	YES	Smlight SLZB Ultima
Z-Wave Controller	NO	YES	Smlight SLZB Ultima
Dual Network	NO	YES	Smlight SLZB Ultima
Bluetooth Proxy	NO	YES	Smlight SLZB Ultima
Zigbee Chip Model	EFR32MG24	EFR32MGXX / CC26XXPX	Different strengths
Warranty	1 year	1 year	Tie
Thread Border Router	YES	YES	Tie
Matter Bridge	NO	NO	Tie

Nabu Casa

Nabu Casa Home Assistant Connect ZBT-2

$65.00

Buy on Amazon USA

+ Price: $65.00
+ Rating: 4.8
- Power: USB vs USB, PoE
- Connectivity: USB vs USB, Ethernet, 2.4 GHz WiFi

Winner

Smlight

Smlight SLZB Ultima

$95.99

Buy on Amazon USA

+ Power: USB, PoE
+ Connectivity: USB, Ethernet, 2.4 GHz WiFi
+ Zigbee Router: YES
- Price: $95.99 vs $65.00
- Rating: 2.0 vs 4.8

Frequently Asked Questions

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

Smlight SLZB Ultima 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 Ultima?

Price is one of the clearest differences: Nabu Casa Home Assistant Connect ZBT-2 lists $65.00, while Smlight SLZB Ultima lists $95.99.

Which one looks better on price?

Nabu Casa Home Assistant Connect ZBT-2 is listed at $65.00, while Smlight SLZB Ultima is listed at $95.99. 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 rating and that matters more than power.

Who should buy Smlight SLZB Ultima?

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

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