Smlight SLZB-MR5U 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-MR5U is the better overall pick. The comparison tilts its way because of dual network and bluetooth proxy, with its broader overall balance keeping it in front. Sonoff Dongle Max remains a niche alternative if its specific feature mix matters more than the rest of the comparison. As a general recommendation, Smlight SLZB-MR5U comes out on top.
vs
FeatureSmlight SLZB-MR5USonoff Dongle MaxWinner
Dual NetworkYESExperimentalSmlight SLZB-MR5U
Bluetooth ProxyYESNOSmlight SLZB-MR5U
Amplifier Gain+20dB+20dBmDifferent strengths
Warranty1 year1 yearTie
PowerUSB, PoEUSB, PoETie
ConnectivityUSB, Ethernet, 2.4 GHz WifiUSB, Ethernet, 2.4 GHz WifiTie
Zigbee Chip ModelEFR32MG24EFR32MG24Tie
Zigbee RouterYESYESTie
Z-Wave ControllerNONOTie
Thread Border RouterYESYESTie
Matter BridgeNONOTie
Antenna Gain+5dBi+5dBiTie

Frequently Asked Questions (FAQ)

Which is better overall: Smlight SLZB-MR5U or Sonoff Dongle Max?
Smlight SLZB-MR5U has the stronger overall profile in this comparison, especially for dual network and bluetooth proxy.
What is the biggest difference between Smlight SLZB-MR5U and Sonoff Dongle Max?
Dual Network is one of the clearest differences: Smlight SLZB-MR5U lists YES, while Sonoff Dongle Max lists Experimental.
Who should buy Smlight SLZB-MR5U?
Choose Smlight SLZB-MR5U 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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