Smlight SLZB-06p7 vs Sonoff Dongle Lite MG21

Full Smart Dongles comparison in 2026

Updated March 2026
Data from Amazon and official Smlight and Sonoff sites.
2026 verdict
For 2026, Smlight SLZB-06p7 is the stronger overall choice. The comparison tilts its way because of power, connectivity, and antenna gain, with bluetooth proxy keeping it in front. The only strong reason to choose Sonoff Dongle Lite MG21 is if price and rating is more important to you than the overall verdict. That is enough to make Smlight SLZB-06p7 the better pick for most buyers.
vs
FeatureSmlight SLZB-06p7Sonoff Dongle Lite MG21Winner
Price$79.99$19.90Sonoff Dongle Lite MG21
Rating4.54.7Sonoff Dongle Lite MG21
PowerUSB, PoEUSBSmlight SLZB-06p7
ConnectivityUSB, Ethernet, 2.4 GHz WifiUSBSmlight SLZB-06p7
Antenna Gain+5dBi+3dBiSmlight SLZB-06p7
Bluetooth ProxyYESNOSmlight SLZB-06p7
Zigbee Chip ModelCC2652P7EFR32MG21Different strengths
Amplifier Gain+20dB+20 dBmDifferent strengths
Warranty1 year1 yearTie
Zigbee RouterYESYESTie
Z-Wave ControllerNONOTie
Thread Border RouterYESYESTie
Winner
Smlight

Smlight SLZB-06p7

$79.99
BUY NOW
  • + Power: USB, PoE
  • + Connectivity: USB, Ethernet, 2.4 GHz Wifi
  • + Antenna Gain: +5dBi
  • - Price: $79.99 vs $19.90
  • - Rating: 4.5 vs 4.7

Frequently Asked Questions (FAQ)

Which is better overall: Smlight SLZB-06p7 or Sonoff Dongle Lite MG21?
Smlight SLZB-06p7 has the stronger overall profile in this comparison, especially for power, connectivity, and antenna gain.
What is the biggest difference between Smlight SLZB-06p7 and Sonoff Dongle Lite MG21?
Price is one of the clearest differences: Smlight SLZB-06p7 lists $79.99, while Sonoff Dongle Lite MG21 lists $19.90.
Which one looks better on price?
Smlight SLZB-06p7 is listed at $79.99, while Sonoff Dongle Lite MG21 is listed at $19.90. Sonoff Dongle Lite MG21 (better spec).
Who should buy Smlight SLZB-06p7?
Choose Smlight SLZB-06p7 if your priority is power and connectivity and that matters more than price.
Who should buy Sonoff Dongle Lite MG21?
Choose Sonoff Dongle Lite MG21 if your priority is price and rating and that matters more than power.
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