Updated September 2026
Data from Amazon and official Shelly and Sonoff sites.
2026 verdict
In 2026, the recommendation leans toward Sonoff MINI Duo 2 over Shelly 1 Mini Gen4, driven by price, safety, and relay channels.
It wins the broader comparison through price, safety, and relay channels, while its broader overall balance helps confirm the result. Shelly 1 Mini Gen4 is the better fit only for buyers who prioritize connectivity and integrations above everything else here. That is enough to make Sonoff MINI Duo 2 the better pick for most buyers.
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Winner
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| Feature | Shelly 1 Mini Gen4 | Sonoff MINI Duo 2 | Winner |
|---|---|---|---|
| Price | $24.98 | $17.90 | Sonoff MINI Duo 2 |
| Safety | Overheating protection | Overheating protection, Overvoltage protection | Sonoff MINI Duo 2 |
| Connectivity | Bluetooth, Zigbee | Zigbee | Shelly 1 Mini Gen4 |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Google Home, Alexa, Samsung SmartThings, Home Assistant | Shelly 1 Mini Gen4 |
| Relay Channels | 1 | 2 | Sonoff MINI Duo 2 |
| Rating | 4.5 | 4.5 | Tie |
| Energy Monitoring | NO | NO | Tie |
| Zibgee Router | YES | YES | Tie |
- + Connectivity: Bluetooth, Zigbee
- + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
- - Price: $24.98 vs $17.90
- - Safety: Overheating protection vs Overheating protection, Overvoltage protection
Winner
- + Price: $17.90
- + Safety: Overheating protection, Overvoltage protection
- + Relay Channels: 2
- - Connectivity: Zigbee vs Bluetooth, Zigbee
- - Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
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.
- Shelly 1 Mini Gen4
- Sonoff MINI Duo 2
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Frequently Asked Questions
Which is better overall: Shelly 1 Mini Gen4 or Sonoff MINI Duo 2?
Sonoff MINI Duo 2 has the stronger overall profile in this comparison, especially for price, safety, and relay channels.
What is the biggest difference between Shelly 1 Mini Gen4 and Sonoff MINI Duo 2?
Price is one of the clearest differences: Shelly 1 Mini Gen4 lists $24.98, while Sonoff MINI Duo 2 lists $17.90.
Which one looks better on price?
Shelly 1 Mini Gen4 is listed at $24.98, while Sonoff MINI Duo 2 is listed at $17.90. Sonoff MINI Duo 2 (better spec).
Who should buy Shelly 1 Mini Gen4?
Choose Shelly 1 Mini Gen4 if your priority is connectivity and integrations and that matters more than price.
Who should buy Sonoff MINI Duo 2?
Choose Sonoff MINI Duo 2 if your priority is price and safety and that matters more than connectivity.
Full comparison table
Compare all 47 Relays side by side
You are looking at two of them. The full table lines up all Relays in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
- 47 Relays
- 53 specs compared
- 50 filters
SonoffMINI ONE PM Matter Over WiFi Smart Switch
$19.90
SonoffZBMINIR2 Extreme Zigbee Smart Switch
SonoffMINI ONE Zigbee Smart Switch
$17.90
SonoffMINI Dry Wi-Fi Smart Switch
$14.90
ShellyShelly 2PM Gen3
$24.99
NodOnZigbee Multifunction Relay Switch with Metering
€46.72
ShellyShelly Plus 2PM
26% OFF€31.00€23.00
ShellyPM Mini Gen3
$14.49
ShellyShelly 1 Gen3
$22.99
Shelly2PM Gen4
$38.99
ShellyShelly 1PM Gen4
$28.99
ShellyShelly 1PM Mini Gen4
$27.99
ShellyShelly Plus 1
$42.00
SonoffBasic DIN Rail Matter Over WiFi Smart Switch
$19.90
ShellyShelly Plus 1PM
$27.49
SonoffMINI ONE PM Zigbee Smart Switch
$19.90
ShellyShelly 1 Mini Gen3
$17.99- Shelly
Shelly 1 Mini Gen4
$24.98 - Sonoff
MINI Duo 2
$17.90 
AqaraSingle Switch Module T1 (With Neutral)
$16.04
CamerasShellyCamera
DisplaysShellyWall Display X1i
DisplaysShellyWall Display XL
4.2(62)$349.99
DisplaysShellyWall Display
4.4(434)18% OFF€147.56€121.33
Door & Window SensorsShellyBLU Door/Window ZB
4.4(34)$22.99
Energy MonitorsShelly3EM-63W Gen3
4.6(137)
Energy MonitorsShellyEM Gen3
4.6(265)$69.99
Energy MonitorsShellyEM Gen4
Energy MonitorsShellyEM Mini Gen4
4.5(124)$24.99
Energy MonitorsShellyPro 3EM 3CT63
4.4(337)$150.99
Energy MonitorsShellyPro 3EM-400
4.2(20)$329.99
Energy MonitorsShellyPro 3EM v2
4.5(72)$154.99
Energy MonitorsShellyPro EM-50
4.6(946)$119.99
Gas DetectorsShellyGAS (CNG)
4.2(45)
Gas DetectorsShellyGAS (LPG)
LED BulbsShellyMulticolor Bulb E27 Gen3
4.2(29)
Motion SensorsShellyBLU Motion ZB
4.6(41)$26.99
Motion SensorsShellyBlu Motion
4.0(1,028)$25.99
PlugsShellyPlug M Gen3
4.5(791)$14.99
PlugsShellyPlug PM Gen3
Air Quality MonitorsSonoffSAWF-07P Air Quality Monitor
3.7(191)$39.90
Air Quality MonitorsSonoffSAWF-08P Air Quality Monitor
4.3(169)$49.90
CamerasSonoffCAM GlassView
4.6(19)$34.90
CamerasSonoffCam Outdoor DUO
$79.90
CamerasSonoffCam Slim Gen2
4.4(172)$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(73)$129.90
DonglesSonoffDongle Lite MG21
4.5(439)$24.90
DonglesSonoffDongle Max
4.3(599)
DonglesSonoffDongle Plus MG24
4.7(675)$35.90
DonglesSonoffDongle Plus PP10
4.6(80)$35.90
DonglesSonoffDongle-PZG23
4.6(172)$39.90
DonglesSonoffZ-Wave 800 PoE Dongle Max
4.3(20)$44.90
DonglesSonoffZBDongle-E
4.6(3,724)$24.90
DonglesSonoffZBDongle-P
4.6(5,667)17% OFF$39.99$33.39
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(195)