Smlight SLZB-MR5U vs Sonoff Dongle Max comparison

Data from Amazon and official Smlight and Sonoff sites.

2026 verdict

Between Smlight SLZB-MR5U and Sonoff Dongle Max, Smlight SLZB-MR5U is the better overall pick in 2026, leading on dual network and bluetooth proxy. 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.

Winner

Smlight

Smlight SLZB-MR5U

Price unavailable right now

Buy on Official Store

Sonoff

Sonoff Dongle Max

€45.02

Buy on Amazon Italy

Feature	Smlight SLZB-MR5U	Sonoff Dongle Max	Winner
Dual Network	YES	Experimental	Smlight SLZB-MR5U
Bluetooth Proxy	YES	NO	Smlight SLZB-MR5U
Amplifier Gain	+20dB	+20dBm	Different strengths
Warranty	1 year	1 year	Tie
Power	USB, PoE	USB, PoE	Tie
Connectivity	USB, Ethernet, 2.4 GHz WiFi	USB, Ethernet, 2.4 GHz WiFi	Tie
Zigbee Chip Model	EFR32MG24	EFR32MG24	Tie
Zigbee Router	YES	YES	Tie
Z-Wave Controller	NO	NO	Tie
Thread Border Router	YES	YES	Tie
Matter Bridge	NO	NO	Tie
Antenna Gain	+5dBi	+5dBi	Tie

Winner

Smlight

Smlight SLZB-MR5U

Price unavailable right now

Buy on Official Store

+ Dual Network: YES
+ Bluetooth Proxy: YES

Sonoff

Sonoff Dongle Max

€45.02

Buy on Amazon Italy

- Dual Network: Experimental vs YES
- Bluetooth Proxy: NO vs YES

Frequently Asked Questions

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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