Dongles · Head to head

Smlight SLZB-MR3 vs Sonoff Dongle Max

Full Smart Dongles comparison in 2026

Data from Amazon and official Smlight and Sonoff sites.
2026 verdict
Across the 2026 comparison, Smlight SLZB-MR3 earns the nod over Sonoff Dongle Max on the strength of rating, dual network, and bluetooth proxy. It separates itself most clearly on rating, dual network, and bluetooth proxy, while still looking better on its broader overall balance. There is still a case for Sonoff Dongle Max, but mainly if its specific feature mix is what you value most. For most setups, Smlight SLZB-MR3 is the smarter buy.
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FeatureSmlight SLZB-MR3Sonoff Dongle MaxWinner
Rating5.04.2Smlight SLZB-MR3
Dual NetworkYESExperimentalSmlight SLZB-MR3
Bluetooth ProxyYESNOSmlight SLZB-MR3
Zigbee Chip ModelEFR32MG24 / CC2674P10EFR32MG24Different strengths
Amplifier Gain+20dB+20dBmDifferent strengths
Warranty1 year1 yearTie
PowerUSB, PoEUSB, PoETie
ConnectivityUSB, Ethernet, 2.4 GHz WiFiUSB, Ethernet, 2.4 GHz WiFiTie
Zigbee RouterYESYESTie
Z-Wave ControllerNONOTie
Thread Border RouterYESYESTie
Matter BridgeNONOTie

Frequently Asked Questions

Which is better overall: Smlight SLZB-MR3 or Sonoff Dongle Max?

Smlight SLZB-MR3 has the stronger overall profile in this comparison, especially for rating, dual network, and bluetooth proxy.

What is the biggest difference between Smlight SLZB-MR3 and Sonoff Dongle Max?

Rating is one of the clearest differences: Smlight SLZB-MR3 lists 5.0, while Sonoff Dongle Max lists 4.2.

Who should buy Smlight SLZB-MR3?

Choose Smlight SLZB-MR3 if your priority is rating and dual network and that matters more than the competing advantages.

Who should buy Sonoff Dongle Max?

Choose Sonoff Dongle Max if your priority is its specific strengths and that matters more than rating.

Full comparison table

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