Full Smart Relays comparison in 2026
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| Feature | Shelly PM Mini Gen3 | Sonoff MINI Dry Wi-Fi Smart Switch | Winner |
|---|---|---|---|
| Price | $14.49 | $14.90 | Shelly PM Mini Gen3 |
| Rating | 4.6 | 4.7 | Sonoff MINI Dry Wi-Fi Smart Switch |
| Warranty | 3 years | 1 year | Shelly PM Mini Gen3 |
| Safety | None | Overcurrent protection | Sonoff MINI Dry Wi-Fi Smart Switch |
| Connectivity | 2.4 GHz WiFi, Bluetooth | 2.4 GHz WiFi | Shelly PM Mini Gen3 |
| Integrations | Google Home, Alexa, Samsung SmartThings, Home Assistant | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Sonoff MINI Dry Wi-Fi Smart Switch |
| Energy Monitoring | YES | NO | Shelly PM Mini Gen3 |
| Dry Contact Mode | NO | YES | Sonoff MINI Dry Wi-Fi Smart Switch |
| Wet Contact Mode | NO | YES | Sonoff MINI Dry Wi-Fi Smart Switch |
| Zigbee Router | NO | NO | Tie |
The Sonoff MINI Dry Wi-Fi Smart Switch is a relay with dry and wet contact modes. The Shelly PM Mini Gen3 has no relay: it only meters the circuit it sits on, so it cannot switch a light or appliance.
The Shelly PM Mini Gen3 sits on a 110 to 240V AC circuit up to 16A. The Sonoff MINI Dry Wi-Fi Smart Switch must never switch AC: its output handles DC loads up to 24V and 2A, or a potential-free contact.
The Sonoff MINI Dry Wi-Fi Smart Switch works with Alexa, Google Home, Apple Home, SmartThings, Home Assistant and Matter. The Shelly PM Mini Gen3 covers Alexa, Google Home, SmartThings and Home Assistant, without Apple Home or Matter.
The Shelly PM Mini Gen3 comes with three years of warranty and a 29 x 34 x 16 mm body; the Sonoff is covered for one year and measures 43 x 41 x 21.5 mm.
The Sonoff MINI Dry Wi-Fi Smart Switch pulses a dry contact straight into the motor controller.
The Shelly PM Mini Gen3 reads power, voltage, current and total energy; the Sonoff measures nothing.
The Sonoff MINI Dry Wi-Fi Smart Switch supports Apple Home and Matter; the Shelly PM Mini Gen3 does not.
The Shelly PM Mini Gen3 has Bluetooth and doubles as a gateway for Shelly BLU devices; the Sonoff has no Bluetooth.
The two groups bought these modules for different reasons, and it shows. Shelly PM Mini Gen3 owners praise its accuracy on power, voltage, current and total energy, its small size, an immediate Home Assistant integration and its use as a gateway for Shelly BLU sensors; they warn that it measures but never switches, a point several found confusing, that the terminal block is small for heavier cable and that Shelly's naming led some to order the wrong model. Sonoff MINI Dry Wi-Fi Smart Switch owners wire its dry contact into gates and garage motors and report reliable pulse triggering, voice control through Alexa and Apple Home, and a handy manual button, while their complaints are thin eWeLink instructions for pulse mode and a single report of disconnections.
The Sonoff MINI Dry Wi-Fi Smart Switch, because it switches: dry contacts for gates and garage doors, DC loads up to 24V and Matter support. The Shelly PM Mini Gen3 is a meter only and is the better pick purely for measuring consumption.
No. The Shelly PM Mini Gen3 measures power, voltage, current and energy but has no relay. The Sonoff MINI Dry Wi-Fi Smart Switch is the one of these two that switches.
No. The Sonoff MINI Dry Wi-Fi Smart Switch output supports only DC loads or a potential-free dry contact; AC loads must never be connected to it.
Both do. The Shelly PM Mini Gen3 integrates locally and can also act as a gateway for Shelly BLU devices, and the Sonoff MINI Dry Wi-Fi Smart Switch works with Home Assistant as well as Matter.
Home Assistant users who want to meter an appliance circuit, such as a separate line or a device two floors away, without switching it.
Anyone automating a gate, garage door or other contact-driven system who wants app, voice and Matter control with a manual button.
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