Energy Monitors · Head to head

Refoss EM01P vs Shelly Pro 3EM-400

Full Smart Energy Monitors comparison in 2026

Data from Amazon and 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.
vs
FeatureRefoss EM01PShelly Pro 3EM-400Winner
Price$69.99$329.99Refoss EM01P
MeteringSolar Net MeteringThree-Phase Support, Solar Net Metering, Power Factor ReadingsShelly Pro 3EM-400
Breaker Panel InstallNOYESShelly Pro 3EM-400
Smart Meter PortYESNORefoss EM01P
Connectivity2.4 GHz WiFi2.4 GHz WiFi, Ethernet, Bluetooth, OtherShelly Pro 3EM-400
IntegrationsHome AssistantGoogle Home, Alexa, Home AssistantShelly Pro 3EM-400
Data & MonitoringEnergy Cost Tracking, Data ExportEnergy Cost Tracking, Time-of-Use Rates, Data Export, Usage AlertsShelly Pro 3EM-400
Load ManagementNOYESShelly Pro 3EM-400
Local ControlLocal API, MQTT, Local Web InterfaceLocal API, MQTT, Local Web InterfaceTie
Relay OutputNONOTie
Refoss

Refoss EM01P

16% OFF
$69.99
$82.99
Buy on Official Store
  • + 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
Shelly

Shelly Pro 3EM-400

$329.99
Buy on Amazon USA
  • + 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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