Winner
Updated October 2026
Data from Amazon and official Shelly and Sonoff sites.
2026 verdict
Behind a wall switch that feeds lights, shutters or appliances, the Shelly 2PM Gen3 is the stronger smart relay of these two.
It switches two mains circuits at up to 16A, meters energy on each, runs a roller shutter in interlock mode, carries overheating, overvoltage, overcurrent and overpower protection and comes with a 3-year warranty against 1 year. The Sonoff MINI Dry Wi-Fi Smart Switch is a different tool: a low-voltage relay rated for 2A and 24V DC, built around a dry contact mode for gate motors and garage door openers, with a physical on/off button on the module and a lower price. Both work with Alexa, Google Home, Apple HomeKit, SmartThings, Home Assistant and Matter over 2.4 GHz Wi-Fi. Pick the Shelly 2PM Gen3 for shutters, two circuits or metered appliances, and the Sonoff MINI Dry Wi-Fi Smart Switch when all you need is a clean trigger for a gate or garage door.
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| Feature | Shelly 2PM Gen3 | Sonoff MINI Dry Wi-Fi Smart Switch | Winner |
|---|---|---|---|
| Price | $24.99 | $14.90 | Sonoff MINI Dry Wi-Fi Smart Switch |
| Warranty | 3 years | 1 year | Shelly 2PM Gen3 |
| Safety | Overheating protection, Overvoltage protection, Overcurrent protection, Overpower protection | Overcurrent protection | Shelly 2PM Gen3 |
| Relay Channels | 2 | 1 | Shelly 2PM Gen3 |
| Energy Monitoring | YES | NO | Shelly 2PM Gen3 |
| Dry Contact Mode | NO | YES | Sonoff MINI Dry Wi-Fi Smart Switch |
| Rating | 4.7 | 4.7 | Tie |
| Connectivity | Bluetooth | 2.4 GHz WiFi | Tie |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Tie |
| Wet Contact Mode | YES | YES | Tie |
| Zigbee Router | NO | NO | Tie |
What the differences mean
What each one switches
The Shelly 2PM Gen3 switches mains AC loads at up to 16A per channel, and DC loads too, so it can drive lights, heaters and shutter motors directly. The Sonoff MINI Dry Wi-Fi Smart Switch is rated for 2A, with DC loads at 24V and up to 8W: it is a trigger for a gate or garage controller, not a power switch for an appliance.
Channels and cover mode
The Shelly 2PM Gen3 has two channels and an interlock mode for roller shutters, blinds and garage doors with up and down motors. The Sonoff has one channel and no cover mode.
Energy monitoring
The Shelly 2PM Gen3 measures consumption on each channel. The Sonoff MINI Dry Wi-Fi Smart Switch has no metering.
Protection
The Shelly 2PM Gen3 cuts out on overheating, overvoltage, overcurrent and overpower. The Sonoff has overcurrent protection only, which is less of a concern at the low loads it is built for.
Manual control and warranty
The Sonoff has a physical on/off button on the module; the Shelly 2PM Gen3 has none. The Shelly is covered for 3 years, the Sonoff for 1 year.
Which one to buy if
- you are automating roller shutters or blinds
The Shelly 2PM Gen3 has the two channels and the interlock mode a cover motor needs.
- you only need to trigger a driveway gate or a garage door opener
The Sonoff MINI Dry Wi-Fi Smart Switch is built around the dry contact mode those controllers expect, and costs less.
- you want to know what a heater or a pump consumes
The Shelly 2PM Gen3 meters energy on each channel and switches up to 16A.
- you want a button on the relay itself
The Sonoff has a physical on/off button for app-free control; the Shelly 2PM Gen3 does not.
Winner
- + Warranty: 3 years
- + Safety: Overheating protection, Overvoltage protection, Overcurrent protection, Overpower protection
- + Relay Channels: 2
- - Price: $24.99 vs $14.90
- - Dry Contact Mode: NO vs YES
- + Price: $14.90
- + Dry Contact Mode: YES
- - Warranty: 1 year vs 3 years
- - Safety: Overcurrent protection vs Overheating protection, Overvoltage protection, Overcurrent protection, Overpower protection
What owners say
Owners of both relays report the same pattern at setup: it works well once configured, but getting there can take patience. Shelly 2PM Gen3 owners mention trouble joining Wi-Fi through the app and falling back to the device's own web page, while Sonoff MINI Dry Wi-Fi Smart Switch owners say the eWeLink instructions for pulse mode, the setting most gate and garage installs need, are thin. After that the stories diverge. Shelly 2PM Gen3 owners praise a Wi-Fi link that holds deep inside a wall box, per-channel energy readings and replacing old roller shutter actuators, and a couple note the Gen3 body is thicker than before. Sonoff MINI Dry Wi-Fi Smart Switch owners talk almost only about driveway gates and garage doors triggered by Alexa or HomeKit, and credit the on/off button as a manual fallback.
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 2PM Gen3
- Sonoff MINI Dry Wi-Fi Smart Switch
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Frequently Asked Questions
Which is better overall: Shelly 2PM Gen3 or Sonoff MINI Dry Wi-Fi Smart Switch?
The Shelly 2PM Gen3. It switches two mains circuits at up to 16A, meters energy, handles shutters in interlock mode, has full electrical protection and a 3-year warranty. The Sonoff MINI Dry Wi-Fi Smart Switch is the better value only for a single dry contact trigger such as a gate or garage door.
Shelly or Sonoff: which relay should I choose?
Choose by the load. The Shelly 2PM Gen3 powers and meters lights, appliances and shutter motors directly. The Sonoff MINI Dry Wi-Fi Smart Switch is a low-voltage dry contact relay rated for 2A, meant to trigger gate and garage controllers rather than power them.
Can the Sonoff MINI Dry Wi-Fi Smart Switch control a garage door?
Yes, that is its main use. Its dry contact mode sends the pulse a garage door opener or gate motor expects, and it can be triggered from Alexa, Google Home, Apple HomeKit or Home Assistant. The Shelly 2PM Gen3 handles doors differently, driving up and down motors through its interlock mode.
Do the Shelly 2PM Gen3 and the Sonoff MINI Dry Wi-Fi Smart Switch work with Apple Home and Matter?
Yes, both do. The Shelly 2PM Gen3 and the Sonoff MINI Dry Wi-Fi Smart Switch both support Apple HomeKit and Matter, along with Alexa, Google Home, SmartThings and Home Assistant.
Who should buy the Shelly 2PM Gen3?
Homes automating roller shutters, blinds or two lighting or appliance circuits from one switch position, who want per-channel energy monitoring, full electrical protection and a 3-year warranty.
Who should buy the Sonoff MINI Dry Wi-Fi Smart Switch?
DIYers who need an inexpensive, compact dry contact trigger for a gate or garage door, with a physical button for manual control and wide smart home support.
Full comparison table
Compare all 48 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.
- 48 Relays
- 53 specs compared
- 50 filters
SonoffMINI ONE PM Matter Over WiFi Smart Switch
$19.90
SonoffZBMINIR2 Extreme Zigbee Smart Switch
$12.90
SonoffMINI ONE Zigbee Smart Switch
$17.90- Sonoff
MINI Dry Wi-Fi Smart Switch
$14.90 - Shelly
Shelly 2PM Gen3
$24.99 
NodOnZigbee Multifunction Relay Switch with Metering
€45.95
ShellyShelly Plus 2PM
10% OFF€25.37€22.90
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
$45.00
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
ShellyShelly 1 Mini Gen4
$24.98
SonoffMINI Duo 2
$17.90
AqaraSingle Switch Module T1 (With Neutral)
3% OFF€35.48€34.49
CamerasShellyCamera
DisplaysShellyWall Display X1i
€188.90
DisplaysShellyWall Display XL
4.1(64)$349.99
DisplaysShellyWall Display
4.4(434)€129.36
Door & Window SensorsShellyBLU Door/Window ZB
4.5(37)£19.82
Energy MonitorsShelly3EM-63W Gen3
4.6(137)16% OFF€71.28€59.99
Energy MonitorsShellyEM Gen3
4.6(266)$69.99
Energy MonitorsShellyEM Gen4
Energy MonitorsShellyEM Mini Gen4
4.5(133)$24.99
Energy MonitorsShellyPro 3EM 3CT63
4.4(344)$150.99
Energy MonitorsShellyPro 3EM-400
4.3(21)$329.99
Energy MonitorsShellyPro 3EM v2
4.5(77)$154.99
Energy MonitorsShellyPro EM-50
4.6(952)$119.99
Gas DetectorsShellyGAS (CNG)
4.2(45)5% OFF€62.74€59.29
Gas DetectorsShellyGAS (LPG)
$69.99
LED BulbsShellyMulticolor Bulb E27 Gen3
4.2(29)€9.90
Motion SensorsShellyBLU Motion ZB
4.6(42)$26.99
Motion SensorsShellyBlu Motion
4.0(1,031)$25.99
PlugsShellyPlug M Gen3
4.5(791)€12.90
PlugsShellyPlug PM Gen3
€25.60
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(75)$129.90
DonglesSonoffDongle Lite MG21
4.5(449)$24.90
DonglesSonoffDongle Max
4.3(603)18% OFF€38.99€32.13
DonglesSonoffDongle Plus MG24
4.7(684)$35.90
DonglesSonoffDongle Plus PP10
4.6(98)$35.90
DonglesSonoffDongle-PZG23
4.6(175)$39.90
DonglesSonoffZ-Wave 800 PoE Dongle Max
4.5(26)$44.90
DonglesSonoffZBDongle-E
4.7(3,738)$24.90
DonglesSonoffZBDongle-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