Dongles · Head to head

Smlight SLZB-MR4 vs Third Reality USBC-Dongle

Full Smart Dongles comparison in 2026

Updated August 2026
Data from Amazon and official Smlight and Third Reality sites.
2026 verdict
Between Smlight SLZB-MR4 and Third Reality USBC-Dongle, Smlight SLZB-MR4 is the better overall pick in 2026, leading on rating, power, and connectivity. The comparison tilts its way because of rating, power, and connectivity, with zigbee router and dual network keeping it in front. Third Reality USBC-Dongle remains a niche alternative if matter bridge matters more than the rest of the comparison. Overall, Smlight SLZB-MR4 makes more sense for most people.
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FeatureSmlight SLZB-MR4Third Reality USBC-DongleWinner
Rating5.03.3Smlight SLZB-MR4
PowerUSB, PoEUSBSmlight SLZB-MR4
ConnectivityUSB, Ethernet, 2.4 GHz WiFiUSBSmlight SLZB-MR4
Zigbee RouterYESNOSmlight SLZB-MR4
Matter BridgeNOYESThird Reality USBC-Dongle
Dual NetworkYESNOSmlight SLZB-MR4
Bluetooth ProxyYESNOSmlight SLZB-MR4
Warranty1 year1 yearTie
Z-Wave ControllerNONOTie
Thread Border RouterYESYESTie

Frequently Asked Questions

Which is better overall: Smlight SLZB-MR4 or Third Reality USBC-Dongle?

Smlight SLZB-MR4 has the stronger overall profile in this comparison, especially for rating, power, and connectivity.

What is the biggest difference between Smlight SLZB-MR4 and Third Reality USBC-Dongle?

Rating is one of the clearest differences: Smlight SLZB-MR4 lists 5.0, while Third Reality USBC-Dongle lists 3.3.

Who should buy Smlight SLZB-MR4?

Choose Smlight SLZB-MR4 if your priority is rating and power and that matters more than matter bridge.

Who should buy Third Reality USBC-Dongle?

Choose Third Reality USBC-Dongle if your priority is matter bridge and that matters more than rating.

Full comparison table

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