Energy Monitors · Head to head

Shelly Pro 3EM 3CT63 vs Shelly Pro 3EM v2

Full Smart Energy Monitors comparison in 2026

Updated September 2026
Data from Amazon and official Shelly site.
2026 verdict
Shelly Pro 3EM v2 is the more complete option versus Shelly Pro 3EM 3CT63 in 2026, helped most by rating and integrations.
Shelly Pro 3EM v2
Winner
Shelly Pro 3EM v2
$154.99
Buy on Amazon USACheck price
Its biggest wins come from rating and integrations, and its broader overall balance adds more confidence to the verdict. Shelly Pro 3EM 3CT63 can still be the right pick, but only if price and warranty outweigh the wider strengths of Shelly Pro 3EM v2. For the average buyer, Shelly Pro 3EM v2 is the safer choice.
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FeatureShelly Pro 3EM 3CT63Shelly Pro 3EM v2Winner
Price$150.99$154.99Shelly Pro 3EM 3CT63
Rating4.44.5Shelly Pro 3EM v2
Warranty5 years3 yearsShelly Pro 3EM 3CT63
IntegrationsGoogle Home, Alexa, Samsung SmartThings, Home AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterShelly Pro 3EM v2
MeteringThree-Phase Support, Solar Net Metering, Power Factor ReadingsThree-Phase Support, Solar Net Metering, Power Factor ReadingsTie
Breaker Panel InstallYESYESTie
Smart Meter PortNONOTie
Connectivity2.4 GHz WiFi, Ethernet, Bluetooth, Other2.4 GHz WiFi, Ethernet, Bluetooth, OtherTie
Data & MonitoringEnergy Cost Tracking, Time-of-Use Rates, Data Export, Usage AlertsEnergy Cost Tracking, Time-of-Use Rates, Data Export, Usage AlertsTie
Local ControlLocal API, MQTT, Local Web InterfaceLocal API, MQTT, Local Web InterfaceTie
Relay OutputNONOTie
Load ManagementYESYESTie
Shelly

Shelly Pro 3EM 3CT63

$150.99
Buy on Amazon USACheck price
  • + Price: $150.99
  • + Warranty: 5 years
  • - Rating: 4.4 vs 4.5
  • - Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter

Frequently Asked Questions

Which is better overall: Shelly Pro 3EM 3CT63 or Shelly Pro 3EM v2?

Shelly Pro 3EM v2 has the stronger overall profile in this comparison, especially for rating and integrations.

What is the biggest difference between Shelly Pro 3EM 3CT63 and Shelly Pro 3EM v2?

Price is one of the clearest differences: Shelly Pro 3EM 3CT63 lists $150.99, while Shelly Pro 3EM v2 lists $154.99.

Which one looks better on price?

Shelly Pro 3EM 3CT63 is listed at $150.99, while Shelly Pro 3EM v2 is listed at $154.99. Shelly Pro 3EM 3CT63 (better spec).

Who should buy Shelly Pro 3EM 3CT63?

Choose Shelly Pro 3EM 3CT63 if your priority is price and warranty and that matters more than rating.

Who should buy Shelly Pro 3EM v2?

Choose Shelly Pro 3EM v2 if your priority is rating and integrations and that matters more than price.

Full comparison table

Compare all 23 Energy Monitors side by side

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  • 23 Energy Monitors
  • 46 specs compared
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