Smlight SLZB-MR1U vs Sonoff Dongle-PZG23

Full Smart Dongles comparison in 2026

Updated April 2026
Data from Amazon and official Smlight and Sonoff sites.
2026 verdict
Looking at the full picture in 2026, Smlight SLZB-MR1U 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 z-wave controller outweighs the wider strengths of Smlight SLZB-MR1U. Overall, Smlight SLZB-MR1U makes more sense for most people.
vs
FeatureSmlight SLZB-MR1USonoff Dongle-PZG23Winner
PowerUSB, PoEUSBSmlight SLZB-MR1U
ConnectivityUSB, Ethernet, 2.4 GHz WifiUSBSmlight SLZB-MR1U
Zigbee RouterYESNOSmlight SLZB-MR1U
Z-Wave ControllerNOYESSonoff Dongle-PZG23
Thread Border RouterYESNOSmlight SLZB-MR1U
Antenna Gain+5dBi2 dBiSmlight SLZB-MR1U
Dual NetworkYESNOSmlight SLZB-MR1U
Bluetooth ProxyYESNOSmlight SLZB-MR1U
Warranty1 year1 yearTie
Matter BridgeNONOTie
Amplifier Gain+20dB+20dBTie
Winner
Smlight

Smlight SLZB-MR1U

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  • + Power: USB, PoE
  • + Connectivity: USB, Ethernet, 2.4 GHz Wifi
  • + Zigbee Router: YES
  • - Z-Wave Controller: NO vs YES

Frequently Asked Questions (FAQ)

Which is better overall: Smlight SLZB-MR1U or Sonoff Dongle-PZG23?
Smlight SLZB-MR1U has the stronger overall profile in this comparison, especially for power, connectivity, and zigbee router.
What is the biggest difference between Smlight SLZB-MR1U and Sonoff Dongle-PZG23?
Power is one of the clearest differences: Smlight SLZB-MR1U lists USB, PoE, while Sonoff Dongle-PZG23 lists USB.
Who should buy Smlight SLZB-MR1U?
Choose Smlight SLZB-MR1U if your priority is power and connectivity and that matters more than z-wave controller.
Who should buy Sonoff Dongle-PZG23?
Choose Sonoff Dongle-PZG23 if your priority is z-wave controller and that matters more than power.
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