Smlight SLZB-MR1U vs Sonoff ZBDongle-P

Full Smart Dongles comparison in 2026

Updated April 2026
Data from Amazon and official Smlight and Sonoff sites.
2026 verdict
In 2026, the recommendation leans toward Smlight SLZB-MR1U. Its biggest wins come from power, connectivity, and thread border router, and antenna gain and dual network adds more confidence to the verdict. The only strong reason to choose Sonoff ZBDongle-P is if warranty is more important to you than the overall verdict. Overall, Smlight SLZB-MR1U makes more sense for most people.
vs
FeatureSmlight SLZB-MR1USonoff ZBDongle-PWinner
Warranty1 year2 yearsSonoff ZBDongle-P
PowerUSB, PoEUSBSmlight SLZB-MR1U
ConnectivityUSB, Ethernet, 2.4 GHz WifiUSBSmlight SLZB-MR1U
Thread Border RouterYESNOSmlight SLZB-MR1U
Antenna Gain+5dBi2 dBiSmlight SLZB-MR1U
Dual NetworkYESNOSmlight SLZB-MR1U
Bluetooth ProxyYESNOSmlight SLZB-MR1U
Zigbee Chip ModelEFR32MG21 / CC2652P7CC2652PDifferent strengths
Amplifier Gain+20dB+20dBmDifferent strengths
Zigbee RouterYESYESTie
Z-Wave ControllerNONOTie
Matter BridgeNONOTie
Winner
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  • + Power: USB, PoE
  • + Connectivity: USB, Ethernet, 2.4 GHz Wifi
  • + Thread Border Router: YES
  • - Warranty: 1 year vs 2 years

Frequently Asked Questions (FAQ)

Which is better overall: Smlight SLZB-MR1U or Sonoff ZBDongle-P?
Smlight SLZB-MR1U has the stronger overall profile in this comparison, especially for power, connectivity, and thread border router.
What is the biggest difference between Smlight SLZB-MR1U and Sonoff ZBDongle-P?
Warranty is one of the clearest differences: Smlight SLZB-MR1U lists 1 year, while Sonoff ZBDongle-P lists 2 years.
Who should buy Smlight SLZB-MR1U?
Choose Smlight SLZB-MR1U if your priority is power and connectivity and that matters more than warranty.
Who should buy Sonoff ZBDongle-P?
Choose Sonoff ZBDongle-P if your priority is warranty and that matters more than power.
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