Smlight SLZB-MR1U vs Smlight SLZB-MR4

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.

Smlight

Smlight SLZB-MR1U

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Smlight

Smlight SLZB-MR4

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Feature	Smlight SLZB-MR1U	Smlight SLZB-MR4	Winner
Zigbee Chip Model	EFR32MG21 / CC2652P7	EFR32MG26 / CC2674P10	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 Router	YES	YES	Tie
Z-Wave Controller	NO	NO	Tie
Thread Border Router	YES	YES	Tie
Matter Bridge	NO	NO	Tie
Amplifier Gain	+20dB	+20dB	Tie
Antenna Gain	+5dBi	+5dBi	Tie
Dual Network	YES	YES	Tie
Bluetooth Proxy	YES	YES	Tie

Smlight

Smlight SLZB-MR1U

Price unavailable right now

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+ Smlight SLZB-MR1U has a viable feature set with no obvious deal-breaker in the available data.

Smlight

Smlight SLZB-MR4

Price unavailable right now

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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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