Smlight SLZB-06M vs Sonoff ZBDongle-P

Updated April 2026

Data from Amazon and official Smlight and Sonoff sites.

2026 verdict

In this 2026 comparison, Smlight SLZB-06M comes out ahead overall. It builds its lead on power, connectivity, and thread border router, then backs it up with a stronger showing on antenna gain and bluetooth proxy. Sonoff ZBDongle-P still makes sense if price, rating, and warranty is your priority, but most buyers should still lean toward Smlight SLZB-06M. For the average buyer, Smlight SLZB-06M is the safer choice.

Winner

Smlight

Smlight SLZB-06M

$74.99

BUY NOW

Sonoff

Sonoff ZBDongle-P

$39.99

BUY NOW

Feature	Smlight SLZB-06M	Sonoff ZBDongle-P	Winner
Price	$74.99	$39.99	Sonoff ZBDongle-P
Rating	4.5	4.6	Sonoff ZBDongle-P
Warranty	1 year	2 years	Sonoff ZBDongle-P
Power	USB, PoE	USB	Smlight SLZB-06M
Connectivity	USB, Ethernet, 2.4 GHz Wifi	USB	Smlight SLZB-06M
Thread Border Router	YES	NO	Smlight SLZB-06M
Antenna Gain	+5dBi	2 dBi	Smlight SLZB-06M
Bluetooth Proxy	YES	NO	Smlight SLZB-06M
Zigbee Chip Model	EFR32MG21	CC2652P	Different strengths
Amplifier Gain	+20dB	+20dBm	Different strengths
Zigbee Router	YES	YES	Tie
Z-Wave Controller	NO	NO	Tie

Winner

Smlight

Smlight SLZB-06M

$74.99

BUY NOW

+ Power: USB, PoE
+ Connectivity: USB, Ethernet, 2.4 GHz Wifi
+ Thread Border Router: YES
- Price: $74.99 vs $39.99
- Rating: 4.5 vs 4.6

Sonoff

Sonoff ZBDongle-P

$39.99

BUY NOW

+ Price: $39.99
+ Rating: 4.6
+ Warranty: 2 years
- Power: USB vs USB, PoE
- Connectivity: USB vs USB, Ethernet, 2.4 GHz Wifi

Frequently Asked Questions (FAQ)

Which is better overall: Smlight SLZB-06M or Sonoff ZBDongle-P?: Smlight SLZB-06M has the stronger overall profile in this comparison, especially for power, connectivity, and thread border router.
What is the biggest difference between Smlight SLZB-06M and Sonoff ZBDongle-P?: Price is one of the clearest differences: Smlight SLZB-06M lists $74.99, while Sonoff ZBDongle-P lists $39.99.
Which one looks better on price?: Smlight SLZB-06M is listed at $74.99, while Sonoff ZBDongle-P is listed at $39.99. Sonoff ZBDongle-P (better spec).
Who should buy Smlight SLZB-06M?: Choose Smlight SLZB-06M if your priority is power and connectivity and that matters more than price.
Who should buy Sonoff ZBDongle-P?: Choose Sonoff ZBDongle-P if your priority is price and rating and that matters more than power.

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