50/100
MIXEDmedium confidence
Sonoff Mini R4 Extreme Matter Smart Relay
Expert Take
The Sonoff Mini R4 Extreme Matter Smart Relay is an ultra-compact (30x40mm) Wi-Fi smart relay with an ESP32-C3 processor and Matter certification. While it enables deep integration in tight spaces, the locked flash prevents custom firmware without chip replacement, and its tiny pins require skilled soldering, limiting it to advanced users.
Pros
- Extremely compact form factor fits easily behind standard wall switches.devices.esphome.io
- Matter certification ensures broad compatibility with major smart home ecosystems.devices.esphome.io
- Detachable relay simplifies replacement and repair without desoldering.devices.esphome.io
Cons
- Flash is locked; custom firmware requires physically replacing the ESP32-C3 chip.devices.esphome.io
- Programming demands moderate soldering skills due to very small GPIO pins.devices.esphome.io
- Protective coating on the Vcc pad must be scratched off before soldering.devices.esphome.io
Expert Quality
50
Deal Score
38
Price
$17.57
Current Price
$17.57$35.14-50%
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