Smlight SLZB-MR2 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
Taken as a whole in 2026, Smlight SLZB-MR2 wins this matchup. 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 still relevant if you care most about price, but Smlight SLZB-MR2 is the stronger recommendation overall. Overall, Smlight SLZB-MR2 makes more sense for most people.
vs
FeatureSmlight SLZB-MR2Sonoff Dongle Plus MG24Winner
Price$102.99$35.90Sonoff Dongle Plus MG24
Rating4.84.6Smlight SLZB-MR2
PowerUSB, PoEUSBSmlight SLZB-MR2
ConnectivityUSB, Ethernet, 2.4 GHz WifiUSBSmlight SLZB-MR2
Antenna Gain+5dBi+4.5dBiSmlight SLZB-MR2
Dual NetworkYESNOSmlight SLZB-MR2
Bluetooth ProxyYESNOSmlight SLZB-MR2
Zigbee Chip ModelEFR32MG21 / CC2652PEFR32MG24Different strengths
Amplifier Gain+20dB+20dBmDifferent strengths
Warranty1 year1 yearTie
Zigbee RouterYESYESTie
Z-Wave ControllerNONOTie

Frequently Asked Questions (FAQ)

Which is better overall: Smlight SLZB-MR2 or Sonoff Dongle Plus MG24?
Smlight SLZB-MR2 has the stronger overall profile in this comparison, especially for rating, power, and connectivity.
What is the biggest difference between Smlight SLZB-MR2 and Sonoff Dongle Plus MG24?
Price is one of the clearest differences: Smlight SLZB-MR2 lists $102.99, while Sonoff Dongle Plus MG24 lists $35.90.
Which one looks better on price?
Smlight SLZB-MR2 is listed at $102.99, while Sonoff Dongle Plus MG24 is listed at $35.90. Sonoff Dongle Plus MG24 (better spec).
Who should buy Smlight SLZB-MR2?
Choose Smlight SLZB-MR2 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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