Smlight SLZB-MR4 vs Sonoff Dongle Max

Full Smart Dongles comparison in 2026

Data from Amazon and official Smlight and Sonoff sites.
2026 verdict
In 2026, Smlight SLZB-MR4 is the better overall pick. Its biggest wins come from dual network and bluetooth proxy, and its broader overall balance adds more confidence to the verdict. Sonoff Dongle Max still makes sense if its specific feature mix is your priority, but most buyers should still lean toward Smlight SLZB-MR4. In practical terms, Smlight SLZB-MR4 is the easier product to recommend.
vs
FeatureSmlight SLZB-MR4Sonoff Dongle MaxWinner
Dual NetworkYESExperimentalSmlight SLZB-MR4
Bluetooth ProxyYESNOSmlight SLZB-MR4
Zigbee Chip ModelEFR32MG26 / 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
Antenna Gain+5dBi+5dBiTie

Frequently Asked Questions (FAQ)

Which is better overall: Smlight SLZB-MR4 or Sonoff Dongle Max?
Smlight SLZB-MR4 has the stronger overall profile in this comparison, especially for dual network and bluetooth proxy.
What is the biggest difference between Smlight SLZB-MR4 and Sonoff Dongle Max?
Dual Network is one of the clearest differences: Smlight SLZB-MR4 lists YES, while Sonoff Dongle Max lists Experimental.
Who should buy Smlight SLZB-MR4?
Choose Smlight SLZB-MR4 if your priority is dual network and bluetooth proxy 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 dual network.
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