Dongles · Head to head

Smlight SLZB-MR5U vs Sonoff ZBDongle-P

Full Smart Dongles comparison in 2026

Updated June 2026
Data from Amazon and official Smlight and Sonoff sites.
2026 verdict
Smlight SLZB-MR5U beats Sonoff ZBDongle-P in 2026, with its clearest edge on power, connectivity, and thread border router. It builds its lead on power, connectivity, and thread border router, then backs it up with a stronger showing on antenna gain and dual network. Choose Sonoff ZBDongle-P only if warranty matters more to you than the broader advantage from Smlight SLZB-MR5U. In practical terms, Smlight SLZB-MR5U is the easier product to recommend.
vs
FeatureSmlight SLZB-MR5USonoff ZBDongle-PWinner
Warranty1 year2 yearsSonoff ZBDongle-P
PowerUSB, PoEUSBSmlight SLZB-MR5U
ConnectivityUSB, Ethernet, 2.4 GHz WiFiUSBSmlight SLZB-MR5U
Thread Border RouterYESNOSmlight SLZB-MR5U
Antenna Gain+5dBi2 dBiSmlight SLZB-MR5U
Dual NetworkYESNOSmlight SLZB-MR5U
Bluetooth ProxyYESNOSmlight SLZB-MR5U
Zigbee Chip ModelEFR32MG24CC2652PDifferent strengths
Amplifier Gain+20dB+20dBmDifferent strengths
Zigbee RouterYESYESTie
Z-Wave ControllerNONOTie
Matter BridgeNONOTie

Frequently Asked Questions

Which is better overall: Smlight SLZB-MR5U or Sonoff ZBDongle-P?

Smlight SLZB-MR5U has the stronger overall profile in this comparison, especially for power, connectivity, and thread border router.

What is the biggest difference between Smlight SLZB-MR5U and Sonoff ZBDongle-P?

Warranty is one of the clearest differences: Smlight SLZB-MR5U lists 1 year, while Sonoff ZBDongle-P lists 2 years.

Who should buy Smlight SLZB-MR5U?

Choose Smlight SLZB-MR5U 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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