Smlight SLZB-MR3 vs Sonoff Dongle Plus MG24

Full Smart Dongles comparison in 2026

Updated April 2026
Data from Amazon and official Smlight and Sonoff sites.
2026 verdict
Looking at the full picture in 2026, Smlight SLZB-MR3 gets the edge. It wins the broader comparison through rating, power, and connectivity, while antenna gain and dual network helps confirm the result. Sonoff Dongle Plus MG24 is the better fit only for buyers who prioritize price above everything else here. For the average buyer, Smlight SLZB-MR3 is the safer choice.
vs
FeatureSmlight SLZB-MR3Sonoff Dongle Plus MG24Winner
Price$105.99$35.90Sonoff Dongle Plus MG24
Rating4.74.6Smlight SLZB-MR3
PowerUSB, PoEUSBSmlight SLZB-MR3
ConnectivityUSB, Ethernet, 2.4 GHz WifiUSBSmlight SLZB-MR3
Antenna Gain+5dBi+4.5dBiSmlight SLZB-MR3
Dual NetworkYESNOSmlight SLZB-MR3
Bluetooth ProxyYESNOSmlight SLZB-MR3
Zigbee Chip ModelEFR32MG24 / CC2674P10EFR32MG24Different strengths
Amplifier Gain+20dB+20dBmDifferent strengths
Warranty1 year1 yearTie
Zigbee RouterYESYESTie
Z-Wave ControllerNONOTie

Frequently Asked Questions (FAQ)

Which is better overall: Smlight SLZB-MR3 or Sonoff Dongle Plus MG24?
Smlight SLZB-MR3 has the stronger overall profile in this comparison, especially for rating, power, and connectivity.
What is the biggest difference between Smlight SLZB-MR3 and Sonoff Dongle Plus MG24?
Price is one of the clearest differences: Smlight SLZB-MR3 lists $105.99, while Sonoff Dongle Plus MG24 lists $35.90.
Which one looks better on price?
Smlight SLZB-MR3 is listed at $105.99, while Sonoff Dongle Plus MG24 is listed at $35.90. Sonoff Dongle Plus MG24 (better spec).
Who should buy Smlight SLZB-MR3?
Choose Smlight SLZB-MR3 if your priority is rating and power and that matters more than price.
Who should buy Sonoff Dongle Plus MG24?
Choose Sonoff Dongle Plus MG24 if your priority is price and that matters more than rating.
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