Dongles · Head to head

Smlight SLZB-MR1U vs Sonoff ZBDongle-P

Full Smart Dongles comparison in 2026

Updated August 2026
Data from Amazon and official Smlight and Sonoff sites.
2026 verdict
In 2026, the recommendation leans toward Smlight SLZB-MR1U over Sonoff ZBDongle-P, driven by rating, power, and connectivity. Its biggest wins come from rating, power, and connectivity, and thread border router and antenna gain add more confidence to the verdict. The only strong reason to choose Sonoff ZBDongle-P is if price and warranty are more important to you than the overall verdict. Overall, Smlight SLZB-MR1U makes more sense for most people.
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FeatureSmlight SLZB-MR1USonoff ZBDongle-PWinner
Price$102.99$33.88Sonoff ZBDongle-P
Rating4.84.6Smlight SLZB-MR1U
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

Frequently Asked Questions

Which is better overall: Smlight SLZB-MR1U or Sonoff ZBDongle-P?

Smlight SLZB-MR1U has the stronger overall profile in this comparison, especially for rating, power, and connectivity.

What is the biggest difference between Smlight SLZB-MR1U and Sonoff ZBDongle-P?

Price is one of the clearest differences: Smlight SLZB-MR1U lists $102.99, while Sonoff ZBDongle-P lists $33.88.

Which one looks better on price?

Smlight SLZB-MR1U is listed at $102.99, while Sonoff ZBDongle-P is listed at $33.88. Sonoff ZBDongle-P (better spec).

Who should buy Smlight SLZB-MR1U?

Choose Smlight SLZB-MR1U if your priority is rating and power and that matters more than price.

Who should buy Sonoff ZBDongle-P?

Choose Sonoff ZBDongle-P if your priority is price and warranty and that matters more than rating.

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