Smlight SLZB-MR1U vs Smlight SLZB-MR4

Full Smart Dongles comparison in 2026

Data from Amazon and official Smlight site.
2026 verdict
In 2026, the comparison is balanced enough to stay conditional. There is no universal winner: Smlight SLZB-MR1U is better for its strongest specs and its broader overall balance, while Smlight SLZB-MR4 is better for its strongest specs and its broader overall balance. The deciding factor is which advantages matter more in day-to-day use. That is why the verdict stays conditional instead of absolute.
vs
FeatureSmlight SLZB-MR1USmlight SLZB-MR4Winner
Zigbee Chip ModelEFR32MG21 / CC2652P7EFR32MG26 / CC2674P10Different 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
Amplifier Gain+20dB+20dBTie
Antenna Gain+5dBi+5dBiTie
Dual NetworkYESYESTie
Bluetooth ProxyYESYESTie
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  • + Smlight SLZB-MR4 has a viable feature set with no obvious deal-breaker in the available data.

Frequently Asked Questions (FAQ)

Which is better overall: Smlight SLZB-MR1U or Smlight SLZB-MR4?
This one is close. Smlight SLZB-MR1U leads in some areas, while Smlight SLZB-MR4 leads in other areas.
What is the biggest difference between Smlight SLZB-MR1U and Smlight SLZB-MR4?
Zigbee Chip Model is one of the clearest differences: Smlight SLZB-MR1U lists EFR32MG21 / CC2652P7, while Smlight SLZB-MR4 lists EFR32MG26 / CC2674P10.
Who should buy Smlight SLZB-MR1U?
Choose Smlight SLZB-MR1U if your priority is its specific strengths and that matters more than the competing advantages.
Who should buy Smlight SLZB-MR4?
Choose Smlight SLZB-MR4 if your priority is its specific strengths and that matters more than the competing advantages.
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