Updated October 2026
Data from the official Nabu Casa and Smlight sites.
2026 verdict
Smlight SLZB-06 U edges out Nabu Casa Home Assistant Connect ZWA-2 in 2026, led by price, rating, and warranty.
Its biggest wins come from price, rating, and warranty, and power and connectivity add more confidence to the verdict. Nabu Casa Home Assistant Connect ZWA-2 is the better fit only for buyers who prioritize Z-Wave controller above everything else here. For the average buyer, Smlight SLZB-06 U is the safer choice.
Works with
Connectivity
vs
Winner
Works with
Connectivity
- Wi-Fi 2.4 GHz
- Ethernet
- Thread border router
- Zigbee coordinator
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| Feature | Nabu Casa Home Assistant Connect ZWA-2 | Smlight SLZB-06 U | Winner |
|---|---|---|---|
| Price | $79.00 | $72.99 | Smlight SLZB-06 U |
| Rating | 4.6 | 5.0 | Smlight SLZB-06 U |
| Warranty | 1 year | 3 years | Smlight SLZB-06 U |
| Power | USB | USB, PoE | Smlight SLZB-06 U |
| Connectivity | USB | USB, Ethernet, 2.4 GHz WiFi | Smlight SLZB-06 U |
| Zigbee Router | NO | YES | Smlight SLZB-06 U |
| Z-Wave Controller | YES | NO | Nabu Casa Home Assistant Connect ZWA-2 |
| Thread Border Router | NO | YES | Smlight SLZB-06 U |
| Antenna Gain | +3.38dBi | +5dB | Smlight SLZB-06 U |
| Matter Bridge | NO | NO | Tie |
| Transmit Power | +20dBm | +20dBm | Tie |
| Dual Network | NO | NO | Tie |
$79.00
- + Z-Wave Controller: YES
- - Price: $79.00 vs $72.99
- - Rating: 4.6 vs 5.0
Winner
$72.99
- + Price: $72.99
- + Rating: 5.0
- + Warranty: 3 years
- - Z-Wave Controller: NO vs YES
Frequently Asked Questions
Which is better overall: Nabu Casa Home Assistant Connect ZWA-2 or Smlight SLZB-06 U?
Smlight SLZB-06 U has the stronger overall profile in this comparison, especially for price, rating, and warranty.
What is the biggest difference between Nabu Casa Home Assistant Connect ZWA-2 and Smlight SLZB-06 U?
Price is one of the clearest differences: Nabu Casa Home Assistant Connect ZWA-2 lists $79.00, while Smlight SLZB-06 U lists $72.99.
Which one looks better on price?
Nabu Casa Home Assistant Connect ZWA-2 is listed at $79.00, while Smlight SLZB-06 U is listed at $72.99. Smlight SLZB-06 U (better spec).
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 price.
Who should buy Smlight SLZB-06 U?
Choose Smlight SLZB-06 U if your priority is price and rating and that matters more than Z-Wave controller.
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