Smlight SLZB-MR2 vs Sonoff ZBDongle-P

Full Smart Dongles comparison in 2026

Updated April 2026
Data from Amazon and official Smlight and Sonoff sites.
2026 verdict
In this 2026 comparison, Smlight SLZB-MR2 comes out ahead overall. Its clearest strengths are rating, power, and connectivity, and it still looks stronger on thread border router and antenna gain. Sonoff ZBDongle-P can still be the right pick, but only if price and warranty outweighs the wider strengths of Smlight SLZB-MR2. That is why the final call still favors Smlight SLZB-MR2.
vs
FeatureSmlight SLZB-MR2Sonoff ZBDongle-PWinner
Price$102.99$39.99Sonoff ZBDongle-P
Rating4.84.6Smlight SLZB-MR2
Warranty1 year2 yearsSonoff ZBDongle-P
PowerUSB, PoEUSBSmlight SLZB-MR2
ConnectivityUSB, Ethernet, 2.4 GHz WifiUSBSmlight SLZB-MR2
Thread Border RouterYESNOSmlight SLZB-MR2
Antenna Gain+5dBi2 dBiSmlight SLZB-MR2
Dual NetworkYESNOSmlight SLZB-MR2
Bluetooth ProxyYESNOSmlight SLZB-MR2
Zigbee Chip ModelEFR32MG21 / CC2652PCC2652PDifferent strengths
Amplifier Gain+20dB+20dBmDifferent strengths
Zigbee RouterYESYESTie
Winner
Smlight

Smlight SLZB-MR2

$102.99
BUY NOW
  • + Rating: 4.8
  • + Power: USB, PoE
  • + Connectivity: USB, Ethernet, 2.4 GHz Wifi
  • - Price: $102.99 vs $39.99
  • - Warranty: 1 year vs 2 years

Frequently Asked Questions (FAQ)

Which is better overall: Smlight SLZB-MR2 or Sonoff ZBDongle-P?
Smlight SLZB-MR2 has the stronger overall profile in this comparison, especially for rating, power, and connectivity.
What is the biggest difference between Smlight SLZB-MR2 and Sonoff ZBDongle-P?
Price is one of the clearest differences: Smlight SLZB-MR2 lists $102.99, while Sonoff ZBDongle-P lists $39.99.
Which one looks better on price?
Smlight SLZB-MR2 is listed at $102.99, while Sonoff ZBDongle-P is listed at $39.99. Sonoff ZBDongle-P (better spec).
Who should buy Smlight SLZB-MR2?
Choose Smlight SLZB-MR2 if your priority is rating and power and that matters more than price.
Who should buy Sonoff ZBDongle-P?
Choose Sonoff ZBDongle-P if your priority is price and warranty and that matters more than rating.
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