Winner
Updated October 2026
Data from Amazon and official Smlight and Sonoff sites.
2026 verdict
Between Smlight SLZB-MR3 and Sonoff ZBDongle-P, Smlight SLZB-MR3 is the better overall pick in 2026, leading on rating, power, and connectivity.
The main reason it wins is rating, power, and connectivity, and thread border router and antenna gain strengthen that case. Choose Sonoff ZBDongle-P only if price and warranty matter more to you than the broader advantage from Smlight SLZB-MR3. As a general recommendation, Smlight SLZB-MR3 comes out on top.
vs
16% OFF
$33.45
$39.99
11% above its lowest price of the last 6 months ($30.26)
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| Feature | Smlight SLZB-MR3 | Sonoff ZBDongle-P | Winner |
|---|---|---|---|
| Price | €158.13 | $33.45 | Sonoff ZBDongle-P |
| Rating | 5.0 | 4.6 | Smlight SLZB-MR3 |
| Warranty | 1 year | 2 years | Sonoff ZBDongle-P |
| Power | USB, PoE | USB | Smlight SLZB-MR3 |
| Connectivity | USB, Ethernet, 2.4 GHz WiFi | USB | Smlight SLZB-MR3 |
| Thread Border Router | YES | NO | Smlight SLZB-MR3 |
| Antenna Gain | +5dB | +2dBi | Smlight SLZB-MR3 |
| Dual Network | YES | NO | Smlight SLZB-MR3 |
| Bluetooth Proxy | YES | NO | Smlight SLZB-MR3 |
| Zigbee Chip Model | EFR32MG24 / CC2674P10 | CC2652P | Different strengths |
| Zigbee Router | YES | YES | Tie |
| Z-Wave Controller | NO | NO | Tie |
Winner
- + Rating: 5.0
- + Power: USB, PoE
- + Connectivity: USB, Ethernet, 2.4 GHz WiFi
- - Price: €158.13 vs $33.45
- - Warranty: 1 year vs 2 years
16% OFF
$33.45
$39.99
- + Price: $33.45
- + Warranty: 2 years
- - Rating: 4.6 vs 5.0
- - Power: USB vs USB, PoE
Price history compared
Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.
- Smlight SLZB-MR3
- Sonoff ZBDongle-P
Loading price history...
Frequently Asked Questions
Which is better overall: Smlight SLZB-MR3 or Sonoff ZBDongle-P?
Smlight SLZB-MR3 has the stronger overall profile in this comparison, especially for rating, power, and connectivity.
What is the biggest difference between Smlight SLZB-MR3 and Sonoff ZBDongle-P?
Price is one of the clearest differences: Smlight SLZB-MR3 lists €158.13, while Sonoff ZBDongle-P lists $33.45.
Which one looks better on price?
Smlight SLZB-MR3 is listed at €158.13, while Sonoff ZBDongle-P is listed at $33.45. Sonoff ZBDongle-P (better spec).
Who should buy Smlight SLZB-MR3?
Choose Smlight SLZB-MR3 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.
Full comparison table
Compare all 36 Dongles side by side
You are looking at two of them. The full table lines up all Dongles in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
- 36 Dongles
- 32 specs compared
- 29 filters
SmlightSLZB-MRW10
$100.00
SmlightSLZB-06 U
$72.99- Smlight
SLZB-MR3
€158.13 
SmlightSLZB-MR5U
$119.99
SmlightSLZB-07
$34.99
SmlightSLZB-MR1U
$102.99
SmlightSLZB-07p7
$36.99
SonoffZBDongle-E
$24.90
SonoffDongle Plus MG24
$35.90
Nabu CasaHome Assistant Connect ZBT-2
$65.00- Sonoff
ZBDongle-P
16% OFF$39.99$33.45 
ZoozZ-Wave Long Range Stick
$39.95
Nabu CasaHome Assistant Connect ZWA-2
$79.00
SonoffDongle-PZG23
$39.90
SmlightSLZB-06M
$72.99
SonoffDongle Plus PP10
$35.90
SmlightSLZB-06p7U
$78.99
SmlightSLZB-MR2
€111.97
SonoffDongle Lite MG21
$24.90
AeotecZ-Stick 7
$39.99
DonglesSmlightSLZB-06 MG24
4.5(6)$82.99
DonglesSmlightSLZB-06 MG26
3.4(7)$84.99- DonglesSmlight
SLZB-06 U
5.0(5)$72.99 
DonglesSmlightSLZB-06
4.2(182)$72.99- DonglesSmlight
SLZB-06M
4.6(111)$72.99 
DonglesSmlightSLZB-06P10
4.4(11)$85.99
DonglesSmlightSLZB-06p7
4.4(11)$79.99- DonglesSmlight
SLZB-06p7U
4.6(33)$78.99 
DonglesSmlightSLZB-07 MG24
3.3(5)$45.99
DonglesSmlightSLZB-07 MG26
4.5(86)- DonglesSmlight
SLZB-07
4.9(20)$34.99 
DonglesSmlightSLZB-07P10
3.0(1)$48.99- DonglesSmlight
SLZB-07p7
4.8(8)$36.99 
DonglesSmlightSLZB-MR1
4.4(11)$103.99- DonglesSmlight
SLZB-MR1U
4.8(16)$102.99 - DonglesSmlight
SLZB-MR2
4.6(8)€111.97 - DonglesSmlight
SLZB-MR3
5.0(1)€158.13 
DonglesSmlightSLZB-MR4
4.0(5)$130.00- DonglesSmlight
SLZB-MR5U
5.0(1)$119.99 - DonglesSmlight
SLZB-MRW10
5.0(11)$100.00
Air Quality MonitorsSonoffSAWF-07P Air Quality Monitor
3.7(193)$39.90
Air Quality MonitorsSonoffSAWF-08P Air Quality Monitor
4.3(169)$49.90
CamerasSonoffCAM GlassView
4.4(30)$34.90
CamerasSonoffCam Outdoor DUO
$79.90
CamerasSonoffCam Slim Gen2
4.4(176)$19.90
CamerasSonoffGK-200MP2-B
4.0(149)30% OFF$9.99$6.99
DisplaysSonoffNSPanel Pro Gen2
3.4(11)€149.90
DisplaysSonoffNSPanel Pro
4.1(74)$129.90- DonglesSonoff
Dongle Lite MG21
4.5(449)$24.90 
DonglesSonoffDongle Max
4.3(603)18% OFF€38.99€32.13- DonglesSonoff
Dongle Plus MG24
4.7(684)$35.90 - DonglesSonoff
Dongle Plus PP10
4.6(98)$35.90 - DonglesSonoff
Dongle-PZG23
4.6(175)$39.90 
DonglesSonoffZ-Wave 800 PoE Dongle Max
4.5(26)$44.90- DonglesSonoff
ZBDongle-E
4.7(3,738)$24.90 - DonglesSonoff
ZBDongle-P
4.6(5,673)16% OFF$39.99$33.45 
Door & Window SensorsSonoffDW2-WIFI
3.8(1,057)$12.23
Door & Window SensorsSonoffSNZB-04 ZigBee Wireless Door/Window Sensor
3.7(101)$17.99
Door & Window SensorsSonoffSNZB-04P ZigBee Door/Window Sensor
4.0(13)$18.99
Door & Window SensorsSonoffSenseGuard DW Gen2
4.4(203)£35.00