Smlight SLZB-06 vs Sonoff Dongle-PZG23

Updated April 2026

Data from Amazon and official Smlight and Sonoff sites.

2026 verdict

Looking at the full picture in 2026, Smlight SLZB-06 gets the edge. It separates itself most clearly on power, connectivity, and zigbee router, while still looking better on thread border router and antenna gain. Sonoff Dongle-PZG23 can still be the right pick, but only if price, rating, and z-wave controller outweighs the wider strengths of Smlight SLZB-06. That is enough to make Smlight SLZB-06 the better pick for most buyers.

Winner

Smlight

Smlight SLZB-06

$74.99

BUY NOW

Sonoff

Sonoff Dongle-PZG23

$39.90

BUY NOW

Feature	Smlight SLZB-06	Sonoff Dongle-PZG23	Winner
Price	$74.99	$39.90	Sonoff Dongle-PZG23
Rating	4.5	4.9	Sonoff Dongle-PZG23
Power	USB, PoE	USB	Smlight SLZB-06
Connectivity	USB, Ethernet, 2.4 GHz Wifi	USB	Smlight SLZB-06
Zigbee Router	YES	NO	Smlight SLZB-06
Z-Wave Controller	NO	YES	Sonoff Dongle-PZG23
Thread Border Router	YES	NO	Smlight SLZB-06
Antenna Gain	+5dBi	2 dBi	Smlight SLZB-06
Bluetooth Proxy	YES	NO	Smlight SLZB-06
Warranty	1 year	1 year	Tie
Matter Bridge	NO	NO	Tie
Amplifier Gain	+20dB	+20dB	Tie

Winner

Smlight

Smlight SLZB-06

$74.99

BUY NOW

+ Power: USB, PoE
+ Connectivity: USB, Ethernet, 2.4 GHz Wifi
+ Zigbee Router: YES
- Price: $74.99 vs $39.90
- Rating: 4.5 vs 4.9

Sonoff

Sonoff Dongle-PZG23

$39.90

BUY NOW

+ Price: $39.90
+ Rating: 4.9
+ Z-Wave Controller: YES
- Power: USB vs USB, PoE
- Connectivity: USB vs USB, Ethernet, 2.4 GHz Wifi

Frequently Asked Questions (FAQ)

Which is better overall: Smlight SLZB-06 or Sonoff Dongle-PZG23?: Smlight SLZB-06 has the stronger overall profile in this comparison, especially for power, connectivity, and zigbee router.
What is the biggest difference between Smlight SLZB-06 and Sonoff Dongle-PZG23?: Price is one of the clearest differences: Smlight SLZB-06 lists $74.99, while Sonoff Dongle-PZG23 lists $39.90.
Which one looks better on price?: Smlight SLZB-06 is listed at $74.99, while Sonoff Dongle-PZG23 is listed at $39.90. Sonoff Dongle-PZG23 (better spec).
Who should buy Smlight SLZB-06?: Choose Smlight SLZB-06 if your priority is power and connectivity and that matters more than price.
Who should buy Sonoff Dongle-PZG23?: Choose Sonoff Dongle-PZG23 if your priority is price and rating and that matters more than power.

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