Currently unavailable on Amazon USA
Updated October 2026
Data from Amazon and official Refoss and Shelly sites.
2026 verdict
In 2026, the recommendation leans toward Shelly EM Mini Gen4 over Refoss EM01P, driven by rating, breaker panel install, and connectivity.
The comparison tilts its way because of rating, breaker panel install, and connectivity, with integrations and data & monitoring keeping it in front. You should still consider Refoss EM01P if smart meter port matters more than raw overall balance. For most setups, Shelly EM Mini Gen4 is the smarter buy.
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Winner
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| Feature | Refoss EM01P | Shelly EM Mini Gen4 | Winner |
|---|---|---|---|
| Rating | 3.6 | 4.5 | Shelly EM Mini Gen4 |
| Breaker Panel Install | NO | YES | Shelly EM Mini Gen4 |
| Smart Meter Port | YES | NO | Refoss EM01P |
| Connectivity | 2.4 GHz WiFi | 2.4 GHz WiFi, Bluetooth, Zigbee | Shelly EM Mini Gen4 |
| Integrations | Home Assistant | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Shelly EM Mini Gen4 |
| Data & Monitoring | Energy Cost Tracking, Data Export | Energy Cost Tracking, Time-of-Use Rates, Data Export, Usage Alerts | Shelly EM Mini Gen4 |
| Metering | Solar Net Metering | None | Tie |
| Local Control | Local API, MQTT, Local Web Interface | Local API, MQTT, Local Web Interface | Tie |
| Relay Output | NO | NO | Tie |
| Load Management | NO | NO | Tie |
Currently unavailable on Amazon USA
- + Smart Meter Port: YES
- - Rating: 3.6 vs 4.5
- - Breaker Panel Install: NO vs YES
Winner
$24.99
- + Rating: 4.5
- + Breaker Panel Install: YES
- + Connectivity: 2.4 GHz WiFi, Bluetooth, Zigbee
- - Smart Meter Port: NO vs YES
Frequently Asked Questions
Which is better overall: Refoss EM01P or Shelly EM Mini Gen4?
Shelly EM Mini Gen4 has the stronger overall profile in this comparison, especially for rating, breaker panel install, and connectivity.
What is the biggest difference between Refoss EM01P and Shelly EM Mini Gen4?
Rating is one of the clearest differences: Refoss EM01P lists 3.6, while Shelly EM Mini Gen4 lists 4.5.
Who should buy Refoss EM01P?
Choose Refoss EM01P if your priority is smart meter port and that matters more than rating.
Who should buy Shelly EM Mini Gen4?
Choose Shelly EM Mini Gen4 if your priority is rating and breaker panel install and that matters more than smart meter port.
Full comparison table
Compare all 25 Energy Monitors side by side
You are looking at two of them. The full table lines up all Energy Monitors in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
- 25 Energy Monitors
- 46 specs compared
- 43 filters
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ButtonsShellyBLU Button Tough 1 ZB
ButtonsShellyBLU RC Button 4 ZB
CamerasShellyCamera
DisplaysShellyWall Display X1i
DisplaysShellyWall Display XL
DisplaysShellyWall Display
Door & Window SensorsShellyBLU Door/Window Outdoor ZB
Door & Window SensorsShellyBLU Door/Window ZB
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Pro 3EM v2
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Gas DetectorsShellyGAS (CNG)
Gas DetectorsShellyGAS (LPG)
LED BulbsShellyMulticolor Bulb E27 Gen3
Motion SensorsShellyBLU Motion ZB