Smlight SLZB-MR3 vs Sonoff Dongle-PZG23

Full Smart Dongles comparison in 2026

Updated April 2026
Data from Amazon and official Smlight and Sonoff sites.
2026 verdict
Taken as a whole in 2026, Smlight SLZB-MR3 wins this matchup. The main reason it wins is rating, power, and connectivity, and zigbee router and thread border router strengthens that case. There is still a case for Sonoff Dongle-PZG23, but mainly if price and z-wave controller is what you value most. In practical terms, Smlight SLZB-MR3 is the easier product to recommend.
vs
FeatureSmlight SLZB-MR3Sonoff Dongle-PZG23Winner
Price$105.99$39.90Sonoff Dongle-PZG23
Rating4.84.6Smlight SLZB-MR3
PowerUSB, PoEUSBSmlight SLZB-MR3
ConnectivityUSB, Ethernet, 2.4 GHz WifiUSBSmlight SLZB-MR3
Zigbee RouterYESNOSmlight SLZB-MR3
Z-Wave ControllerNOYESSonoff Dongle-PZG23
Thread Border RouterYESNOSmlight SLZB-MR3
Antenna Gain+5dBi2 dBiSmlight SLZB-MR3
Dual NetworkYESNOSmlight SLZB-MR3
Bluetooth ProxyYESNOSmlight SLZB-MR3
Warranty1 year1 yearTie
Matter BridgeNONOTie
Winner
Smlight

Smlight SLZB-MR3

$105.99
BUY NOW
  • + Rating: 4.8
  • + Power: USB, PoE
  • + Connectivity: USB, Ethernet, 2.4 GHz Wifi
  • - Price: $105.99 vs $39.90
  • - Z-Wave Controller: NO vs YES

Frequently Asked Questions (FAQ)

Which is better overall: Smlight SLZB-MR3 or Sonoff Dongle-PZG23?
Smlight SLZB-MR3 has the stronger overall profile in this comparison, especially for rating, power, and connectivity.
What is the biggest difference between Smlight SLZB-MR3 and Sonoff Dongle-PZG23?
Price is one of the clearest differences: Smlight SLZB-MR3 lists $105.99, while Sonoff Dongle-PZG23 lists $39.90.
Which one looks better on price?
Smlight SLZB-MR3 is listed at $105.99, while Sonoff Dongle-PZG23 is listed at $39.90. Sonoff Dongle-PZG23 (better spec).
Who should buy Smlight SLZB-MR3?
Choose Smlight SLZB-MR3 if your priority is rating and power and that matters more than price.
Who should buy Sonoff Dongle-PZG23?
Choose Sonoff Dongle-PZG23 if your priority is price and z-wave controller and that matters more than rating.
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