Winner
Updated September 2026
Data from Amazon and official Shelly and Sonoff sites.
2026 verdict
For radios, contact modes and everyday flexibility, the Shelly 1 Mini Gen4 is the better mini relay next to the Sonoff ZBMINI ZigBee Smart Switch.
It joins Wi-Fi or Zigbee, adds Bluetooth and Matter, supports dry contacts, takes OTA updates, handles inductive loads and is covered for 3 years, in a body about half the volume. The Sonoff ZBMINI ZigBee Smart Switch has one spec edge, a 2200 W and 10 A resistive rating against 2000 W and 8 A, and it costs less. Both need a neutral wire, both can repeat the Zigbee signal and both work with Alexa, Google Home, SmartThings and Home Assistant. Choose the Shelly 1 Mini Gen4 for a general purpose relay, and the Sonoff ZBMINI ZigBee Smart Switch as a budget Zigbee relay for a plain resistive load such as lights.
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| Feature | Shelly 1 Mini Gen4 | Sonoff ZBMINI ZigBee Smart Switch | Winner |
|---|---|---|---|
| Price | $24.98 | $17.99 | Sonoff ZBMINI ZigBee Smart Switch |
| Rating | 4.5 | 4.1 | Shelly 1 Mini Gen4 |
| Warranty | 3 years | 1 year | Shelly 1 Mini Gen4 |
| Max Resistive Load Power (Per Channel) | 2000W | 2200W | Sonoff ZBMINI ZigBee Smart Switch |
| Connectivity | Bluetooth, Zigbee | Zigbee | Shelly 1 Mini Gen4 |
| Dry Contact Mode | YES | NO | Shelly 1 Mini Gen4 |
| Safety | Overheating protection | None | Tie |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Tie |
| Relay Channels | 1 | 1 | Tie |
| Energy Monitoring | NO | NO | Tie |
| Wet Contact Mode | YES | YES | Tie |
| Zigbee Router | YES | YES | Tie |
What the differences mean
Connectivity
The Shelly 1 Mini Gen4 offers 2.4 GHz Wi-Fi, Bluetooth, Zigbee through a hub and Matter. The Sonoff ZBMINI ZigBee Smart Switch is Zigbee only, and reaches Apple Home and Matter through a SONOFF hub.
Dry contact mode
The Shelly 1 Mini Gen4 supports dry and wet contacts, so it can trigger a garage door, a gate or a boiler without passing mains. The Sonoff ZBMINI ZigBee Smart Switch has wet contact only.
Load rating
The Sonoff ZBMINI ZigBee Smart Switch is listed at 2200 W and 10 A resistive, ahead of the 2000 W and 8 A of the Shelly 1 Mini Gen4. But the Shelly also lists inductive and capacitive loads, and the Sonoff is resistive only, so for a small motor the Shelly is the safer fit.
Size
The Shelly 1 Mini Gen4 measures 29 x 34 x 16 mm and weighs 19 g. The Sonoff ZBMINI ZigBee Smart Switch is 42.6 x 42.6 x 20 mm and 36 g, which is what some installers found tight in a US box.
Warranty and updates
The Shelly 1 Mini Gen4 has a 3 year warranty and OTA updates. The Sonoff ZBMINI ZigBee Smart Switch has 1 year and no OTA updates, and it does not list power-off memory either.
Which one to buy if
- you need a dry contact for a garage door or gate
The Shelly 1 Mini Gen4 supports dry contact mode and the Sonoff ZBMINI ZigBee Smart Switch does not.
- you run a big Zigbee mesh on a small budget
The Sonoff ZBMINI ZigBee Smart Switch is the cheaper Zigbee router, and owners report large installs running for years.
- the box is crowded and shallow
The Shelly 1 Mini Gen4 is roughly half the volume of the Sonoff.
- you have no hub and want Wi-Fi
The Shelly 1 Mini Gen4 connects over Wi-Fi and supports Matter, while the Sonoff ZBMINI ZigBee Smart Switch needs a Zigbee hub.
Winner
- + Rating: 4.5
- + Warranty: 3 years
- + Connectivity: Bluetooth, Zigbee
- - Price: $24.98 vs $17.99
- - Max Resistive Load Power (Per Channel): 2000W vs 2200W
- + Price: $17.99
- + Max Resistive Load Power (Per Channel): 2200W
- - Rating: 4.1 vs 4.5
- - Warranty: 1 year vs 3 years
What owners say
Owners of both relays agree that they fit a normal switch box, that they pair without drama with Home Assistant and that a neutral wire is a must. Sonoff ZBMINI ZigBee Smart Switch owners lead with reliability, some running dozens of units for years on Zigbee2MQTT, and with how easily it joins Hubitat, SmartThings and even a Hue bridge, while they mention fiddly wiring in tight boxes, a few Zigbee drops and no dry contact mode. Shelly 1 Mini Gen4 owners single out the tiny size, choice of protocols and local control that keeps schedules running offline, plus dry contact projects for garage doors and pool lights, and they mention the unreadable printed instructions, the plastic faceplate needed in metal boxes and a few units that arrived dead.
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 ZBMINI ZigBee Smart Switch
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Frequently Asked Questions
Which is better overall: Shelly 1 Mini Gen4 or Sonoff ZBMINI ZigBee Smart Switch?
The Shelly 1 Mini Gen4, for its Wi-Fi, Bluetooth and Matter support, dry contacts, OTA updates and 3 year warranty. The Sonoff ZBMINI ZigBee Smart Switch is the cheaper option with a slightly higher resistive rating.
What is the difference between the Shelly 1 Mini Gen4 and the Sonoff ZBMINI ZigBee Smart Switch?
The Shelly 1 Mini Gen4 is multi-protocol, smaller and supports dry contacts. The Sonoff ZBMINI ZigBee Smart Switch is a Zigbee-only relay with a 2200 W and 10 A resistive rating.
Do the Shelly 1 Mini Gen4 and the Sonoff ZBMINI ZigBee Smart Switch need a neutral wire?
Yes, both list a neutral wire as required. For a switch box without one, Sonoff sells other models, such as the ZBMINI-L2 Extreme.
Do the Shelly 1 Mini Gen4 and the Sonoff ZBMINI ZigBee Smart Switch act as Zigbee routers?
Yes, both list Zigbee router support, so each repeats the signal for other Zigbee devices when it is joined to a hub.
Who should buy the Shelly 1 Mini Gen4?
Buyers who want a tiny relay with Wi-Fi, Zigbee or Matter options, dry contacts for garage doors and a 3 year warranty.
Who should buy the Sonoff ZBMINI ZigBee Smart Switch?
Zigbee2MQTT, Home Assistant and Hubitat users adding many resistive light loads on a budget, with room in the box and a neutral wire.
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
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NodOnZigbee Multifunction Relay Switch with Metering
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ShellyShelly 1 Gen3
$22.99
Shelly2PM Gen4
$38.99
ShellyShelly 1PM Gen4
$28.99
ShellyShelly 1PM Mini Gen4
$27.99
ShellyShelly Plus 1
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SonoffBasic DIN Rail Matter Over WiFi Smart Switch
$19.90
ShellyShelly Plus 1PM
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SonoffMINI ONE PM Zigbee Smart Switch
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ShellyShelly 1 Mini Gen3
$17.99- Shelly
Shelly 1 Mini Gen4
$24.98 
SonoffMINI Duo 2
$17.90
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Energy MonitorsShelly3EM-63W Gen3
4.6(137)
Energy MonitorsShellyEM Gen3
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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
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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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3.4(11)€149.90
DisplaysSonoffNSPanel Pro
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4.5(444)$24.90
DonglesSonoffDongle Max
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DonglesSonoffDongle Plus MG24
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3.7(101)$17.99
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