Energy Monitors · Head to head

Refoss EM06P vs Shelly Pro 3EM-400

Full Smart Energy Monitors comparison in 2026

Updated September 2026
Data from Amazon and official Refoss and Shelly sites.
2026 verdict
Across the 2026 comparison, Shelly Pro 3EM-400 earns the nod over Refoss EM06P on the strength of warranty, connectivity, and integrations.
Shelly Pro 3EM-400
Winner
Shelly Pro 3EM-400
$329.99
Buy on Amazon USACheck price
It wins the broader comparison through warranty, connectivity, and integrations, while data & monitoring helps confirm the result. Refoss EM06P is still relevant if you care most about rating, but Shelly Pro 3EM-400 is the stronger recommendation overall. That is why the final call still favors Shelly Pro 3EM-400.
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FeatureRefoss EM06PShelly Pro 3EM-400Winner
Rating4.54.3Refoss EM06P
Warranty2 years3 yearsShelly Pro 3EM-400
Connectivity2.4 GHz WiFi2.4 GHz WiFi, Ethernet, Bluetooth, OtherShelly Pro 3EM-400
IntegrationsHome AssistantGoogle Home, Alexa, Samsung SmartThings, Home AssistantShelly Pro 3EM-400
Data & MonitoringEnergy Cost Tracking, Data Export, Usage AlertsEnergy Cost Tracking, Time-of-Use Rates, Data Export, Usage AlertsShelly Pro 3EM-400
MeteringThree-Phase Support, Solar Net Metering, Power Factor ReadingsThree-Phase Support, Solar Net Metering, Power Factor ReadingsTie
Breaker Panel InstallYESYESTie
Smart Meter PortNONOTie
Local ControlLocal API, MQTT, Local Web InterfaceLocal API, MQTT, Local Web InterfaceTie
Relay OutputNONOTie
Load ManagementYESYESTie

Frequently Asked Questions

Which is better overall: Refoss EM06P or Shelly Pro 3EM-400?

Shelly Pro 3EM-400 has the stronger overall profile in this comparison, especially for warranty, connectivity, and integrations.

What is the biggest difference between Refoss EM06P and Shelly Pro 3EM-400?

Rating is one of the clearest differences: Refoss EM06P lists 4.5, while Shelly Pro 3EM-400 lists 4.3.

Who should buy Refoss EM06P?

Choose Refoss EM06P if your priority is rating and that matters more than warranty.

Who should buy Shelly Pro 3EM-400?

Choose Shelly Pro 3EM-400 if your priority is warranty and connectivity and that matters more than rating.

Full comparison table

Compare all 23 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.

  • 23 Energy Monitors
  • 46 specs compared
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