Smlight SLZB-MR4 vs Smlight SLZB Ultima

Data from Amazon and official Smlight site.

2026 verdict

For 2026, Smlight SLZB-MR4 is the stronger overall choice. Its biggest wins come from power, and its broader overall balance adds more confidence to the verdict. Pick Smlight SLZB Ultima only when z-wave controller is the deciding factor for your setup. For the average buyer, Smlight SLZB-MR4 is the safer choice.

Winner

Smlight

Smlight SLZB-MR4

Price unavailable right now

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Smlight

Smlight SLZB Ultima

Price unavailable right now

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Feature	Smlight SLZB-MR4	Smlight SLZB Ultima	Winner
Power	USB, PoE	PoE	Smlight SLZB-MR4
Z-Wave Controller	NO	YES	Smlight SLZB Ultima
Zigbee Chip Model	EFR32MG26 / CC2674P10	EFR32MGXX / CC26XXPX	Different strengths
Warranty	1 year	1 year	Tie
Connectivity	USB, Ethernet, 2.4 GHz Wifi	USB, Ethernet, 2.4 GHz Wifi	Tie
Zigbee Router	YES	YES	Tie
Thread Border Router	YES	YES	Tie
Matter Bridge	NO	NO	Tie
Dual Network	YES	YES	Tie
Bluetooth Proxy	YES	YES	Tie

Winner

Smlight

Smlight SLZB-MR4

Price unavailable right now

BUY NOW

+ Power: USB, PoE
- Z-Wave Controller: NO vs YES

Smlight

Smlight SLZB Ultima

Price unavailable right now

BUY NOW

+ Z-Wave Controller: YES
- Power: PoE vs USB, PoE

Frequently Asked Questions (FAQ)

Which is better overall: Smlight SLZB-MR4 or Smlight SLZB Ultima?: Smlight SLZB-MR4 has the stronger overall profile in this comparison, especially for power.
What is the biggest difference between Smlight SLZB-MR4 and Smlight SLZB Ultima?: Power is one of the clearest differences: Smlight SLZB-MR4 lists USB, PoE, while Smlight SLZB Ultima lists PoE.
Who should buy Smlight SLZB-MR4?: Choose Smlight SLZB-MR4 if your priority is power and that matters more than z-wave controller.
Who should buy Smlight SLZB Ultima?: Choose Smlight SLZB Ultima if your priority is z-wave controller and that matters more than power.

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