16% OFF
$69.99
$82.99
Updated November 2026
Data from the official Refoss and Shelly sites.
2026 verdict
In this 2026 Shelly Pro 3EM-400 vs Refoss EM01P comparison, Shelly Pro 3EM-400 comes out ahead thanks to metering, breaker panel install, and connectivity.
It wins the broader comparison through metering, breaker panel install, and connectivity, while integrations and data & monitoring help confirm the result. Pick Refoss EM01P only when price and smart meter port are the deciding factor for your setup. That is why the final call still favors Shelly Pro 3EM-400.
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| Feature | Refoss EM01P | Shelly Pro 3EM-400 | Winner |
|---|---|---|---|
| Price | $69.99 | $329.99 | Refoss EM01P |
| Metering | Solar Net Metering | Three-Phase Support, Solar Net Metering, Power Factor Readings | Shelly Pro 3EM-400 |
| Breaker Panel Install | NO | YES | Shelly Pro 3EM-400 |
| Smart Meter Port | YES | NO | Refoss EM01P |
| Connectivity | 2.4 GHz WiFi | 2.4 GHz WiFi, Ethernet, Bluetooth, Other | Shelly Pro 3EM-400 |
| Integrations | Home Assistant | Google Home, Alexa, Samsung SmartThings, Home Assistant | Shelly Pro 3EM-400 |
| Data & Monitoring | Energy Cost Tracking, Data Export | Energy Cost Tracking, Time-of-Use Rates, Data Export, Usage Alerts | Shelly Pro 3EM-400 |
| Load Management | NO | YES | Shelly Pro 3EM-400 |
| Local Control | Local API, MQTT, Local Web Interface | Local API, MQTT, Local Web Interface | Tie |
| Relay Output | NO | NO | Tie |
| Local Control | YES | YES | Tie |
16% OFF
$69.99
$82.99
- + Price: $69.99
- + Smart Meter Port: YES
- - Metering: Solar Net Metering vs Three-Phase Support, Solar Net Metering, Power Factor Readings
- - Breaker Panel Install: NO vs YES
Winner
$329.99
- + Metering: Three-Phase Support, Solar Net Metering, Power Factor Readings
- + Breaker Panel Install: YES
- + Connectivity: 2.4 GHz WiFi, Ethernet, Bluetooth, Other
- - Price: $329.99 vs $69.99
- - Smart Meter Port: NO vs YES
Frequently Asked Questions
Which is better overall: Refoss EM01P or Shelly Pro 3EM-400?
Shelly Pro 3EM-400 has the stronger overall profile in this comparison, especially for metering, breaker panel install, and connectivity.
What is the biggest difference between Refoss EM01P and Shelly Pro 3EM-400?
Price is one of the clearest differences: Refoss EM01P lists $69.99, while Shelly Pro 3EM-400 lists $329.99.
Which one looks better on price?
Refoss EM01P is listed at $69.99, while Shelly Pro 3EM-400 is listed at $329.99. Refoss EM01P (better spec).
Who should buy Refoss EM01P?
Choose Refoss EM01P if your priority is price and smart meter port and that matters more than metering.
Who should buy Shelly Pro 3EM-400?
Choose Shelly Pro 3EM-400 if your priority is metering and breaker panel install and that matters more than price.
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