Winner
Updated September 2026
Data from Amazon and official Shelly and Sonoff sites.
2026 verdict
For real mains loads, energy monitoring and protection, the Shelly 2PM Gen4 is the more capable relay, and it is not close.
It switches two independent 16 A channels, measures energy per channel and lists overheating, overvoltage, overcurrent and overpower protection, plus Zigbee, Wi-Fi, Bluetooth and Matter. The Sonoff MINI Dry Wi-Fi Smart Switch is a different tool: a small dry contact trigger rated 2 A and 24 V DC that gets wired into a gate motor or garage door opener, cheap and simple, with a physical button. Choose the Shelly 2PM Gen4 to control lights, shutters or motors, and the Sonoff MINI Dry Wi-Fi Smart Switch when all you need is a clean pulse to an existing opener.
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| Feature | Shelly 2PM Gen4 | Sonoff MINI Dry Wi-Fi Smart Switch | Winner |
|---|---|---|---|
| Price | $38.99 | $14.90 | Sonoff MINI Dry Wi-Fi Smart Switch |
| Rating | 4.6 | 4.7 | Sonoff MINI Dry Wi-Fi Smart Switch |
| Warranty | 3 years | 1 year | Shelly 2PM Gen4 |
| Safety | Overheating protection, Overvoltage protection, Overcurrent protection, Overpower protection | Overcurrent protection | Shelly 2PM Gen4 |
| Connectivity | Bluetooth, Zigbee | 2.4 GHz WiFi | Shelly 2PM Gen4 |
| Relay Channels | 2 | 1 | Shelly 2PM Gen4 |
| Energy Monitoring | YES | NO | Shelly 2PM Gen4 |
| Zigbee Router | YES | NO | Shelly 2PM Gen4 |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Tie |
What the differences mean
What each one switches
The Shelly 2PM Gen4 switches mains loads at 16 A per channel on 110-240 V AC. The Sonoff MINI Dry Wi-Fi Smart Switch is listed at 2 A and 24 V DC and does not switch AC, so it is meant to close a trigger circuit, not to power a light or a motor.
Channels and monitoring
The Shelly 2PM Gen4 has two channels and measures energy on each. The Sonoff MINI Dry Wi-Fi Smart Switch has one channel and no energy monitoring.
Protection
The Shelly 2PM Gen4 lists overheating, overvoltage, overcurrent and overpower protection. The Sonoff MINI Dry Wi-Fi Smart Switch lists overcurrent only.
Radios
The Shelly 2PM Gen4 adds Bluetooth and a Zigbee mode where it repeats the signal. The Sonoff MINI Dry Wi-Fi Smart Switch is Wi-Fi only. Both work with Alexa, Google Home, Apple Home, SmartThings and Home Assistant, and both list Matter.
Manual button and warranty
The Sonoff MINI Dry Wi-Fi Smart Switch has a physical on/off button, which the Shelly 2PM Gen4 does not, but its warranty is 1 year against 3.
Which one to buy if
- you are automating lights, a fan or a roller shutter
The Shelly 2PM Gen4 switches 16 A per channel and has an interlock mode for shutters.
- you just need a pulse for a gate motor or garage opener
The Sonoff MINI Dry Wi-Fi Smart Switch is built as a dry contact trigger, with a pulse mode and a manual button.
- you want to see what each circuit consumes
The Shelly 2PM Gen4 measures energy per channel; the Sonoff has no monitoring.
- your switch box has no neutral wire and you only need a trigger
The Sonoff MINI Dry Wi-Fi Smart Switch lists a neutral wire only in AC input mode, while the Shelly 2PM Gen4 always requires one.
Winner
- + Warranty: 3 years
- + Safety: Overheating protection, Overvoltage protection, Overcurrent protection, Overpower protection
- + Connectivity: Bluetooth, Zigbee
- - Price: $38.99 vs $14.90
- - Rating: 4.6 vs 4.7
- + Price: $14.90
- + Rating: 4.7
- - 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 talk about automation projects done well once the wiring is understood. Shelly 2PM Gen4 owners describe a rock-solid module with local control over Wi-Fi, MQTT or Home Assistant, obstacle detection in cover mode for roller shutters and per-channel energy readings, while they warn about a neutral wire requirement and a fiddly switch from Wi-Fi to Zigbee mode. Sonoff MINI Dry Wi-Fi Smart Switch owners mostly use it for driveway gates and garage doors, pair it with Alexa and Apple Home for voice control and like the physical button as a manual fallback, and their recurring complaint is thin instructions in the eWeLink app for the pulse mode most gate installs need.
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 Gen4
- Sonoff MINI Dry Wi-Fi Smart Switch
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Frequently Asked Questions
Which is better overall: Shelly 2PM Gen4 or Sonoff MINI Dry Wi-Fi Smart Switch?
The Shelly 2PM Gen4, which has two 16 A channels, energy monitoring, full protection and more radios. The Sonoff MINI Dry Wi-Fi Smart Switch is a simple, cheaper trigger for gates and garage doors rather than a load switch.
What is the biggest difference between the Shelly 2PM Gen4 and the Sonoff MINI Dry Wi-Fi Smart Switch?
The load. The Shelly 2PM Gen4 switches mains power at 16 A per channel, while the Sonoff MINI Dry Wi-Fi Smart Switch is a low-power dry contact rated 2 A and 24 V DC.
Can the Sonoff MINI Dry Wi-Fi Smart Switch power a light?
It is not listed for AC loads, so it is meant to trigger circuits such as a gate or garage opener. For lights, use a relay rated for mains such as the Shelly 2PM Gen4.
Do the Shelly 2PM Gen4 and the Sonoff MINI Dry Wi-Fi Smart Switch work with Apple Home?
Yes, both list Apple Home and Matter, along with Alexa, Google Home, SmartThings and Home Assistant.
Who should buy the Shelly 2PM Gen4?
Buyers wiring lights, shutters or two circuits behind one switch who want energy monitoring, protections and a Zigbee or Matter option.
Who should buy the Sonoff MINI Dry Wi-Fi Smart Switch?
DIYers automating a driveway gate or garage door who want a small Wi-Fi pulse trigger at a low price.
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
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SonoffZBMINIR2 Extreme Zigbee Smart Switch
SonoffMINI ONE Zigbee Smart Switch
$17.90- Sonoff
MINI Dry Wi-Fi Smart Switch
$14.90 
ShellyShelly 2PM Gen3
$24.99
NodOnZigbee Multifunction Relay Switch with Metering
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ShellyShelly Plus 2PM
26% OFF€31.00€23.00
ShellyPM Mini Gen3
$14.49
ShellyShelly 1 Gen3
$22.99- Shelly
2PM 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
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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)
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CamerasShellyCamera
DisplaysShellyWall Display X1i
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Door & Window SensorsShellyBLU Door/Window ZB
4.4(34)$22.99
Energy MonitorsShelly3EM-63W Gen3
4.6(137)
Energy MonitorsShellyEM Gen3
4.6(266)$69.99
Energy MonitorsShellyEM Gen4
Energy MonitorsShellyEM Mini Gen4
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Energy MonitorsShellyPro 3EM 3CT63
4.4(341)$150.99
Energy MonitorsShellyPro 3EM-400
4.3(21)$329.99
Energy MonitorsShellyPro 3EM v2
4.5(75)$154.99
Energy MonitorsShellyPro EM-50
4.6(951)$119.99
Gas DetectorsShellyGAS (CNG)
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Gas DetectorsShellyGAS (LPG)
LED BulbsShellyMulticolor Bulb E27 Gen3
4.2(29)
Motion SensorsShellyBLU Motion ZB
4.6(42)$26.99
Motion SensorsShellyBlu Motion
4.0(1,030)$25.99
PlugsShellyPlug M Gen3
4.5(791)$14.99
PlugsShellyPlug PM Gen3
Air Quality MonitorsSonoffSAWF-07P Air Quality Monitor
3.7(192)$39.90
Air Quality MonitorsSonoffSAWF-08P Air Quality Monitor
4.3(168)$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
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DisplaysSonoffNSPanel Pro Gen2
3.4(11)€149.90
DisplaysSonoffNSPanel Pro
4.1(73)$129.90
DonglesSonoffDongle Lite MG21
4.5(444)$24.90
DonglesSonoffDongle Max
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DonglesSonoffDongle Plus MG24
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DonglesSonoffDongle Plus PP10
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DonglesSonoffDongle-PZG23
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Door & Window SensorsSonoffSNZB-04 ZigBee Wireless Door/Window Sensor
3.7(101)$17.99
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