Energy Monitors · Head to head

Shelly Pro 3EM v2 vs Shelly Pro EM-50

Full Smart Energy Monitors comparison in 2026

Updated September 2026
Data from Amazon and official Shelly site.
2026 verdict
In this 2026 Shelly Pro EM-50 vs Shelly Pro 3EM v2 comparison, Shelly Pro EM-50 comes out ahead thanks to price, rating, and relay output.
Shelly Pro EM-50
Winner
Shelly Pro EM-50
$119.99
Buy on Amazon USACheck price
Its biggest wins come from price, rating, and relay output, and its broader overall balance adds more confidence to the verdict. Shelly Pro 3EM v2 remains a niche alternative if metering and integrations matter more than the rest of the comparison. That keeps the verdict firmly in favor of Shelly Pro EM-50.
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FeatureShelly Pro 3EM v2Shelly Pro EM-50Winner
Price$154.99$119.99Shelly Pro EM-50
Rating4.54.6Shelly Pro EM-50
MeteringThree-Phase Support, Solar Net Metering, Power Factor ReadingsSolar Net Metering, Power Factor ReadingsShelly Pro 3EM v2
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Samsung SmartThings, Home AssistantShelly Pro 3EM v2
Relay OutputNOYESShelly Pro EM-50
Warranty3 years3 yearsTie
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
Load ManagementYESYESTie
Shelly

Shelly Pro 3EM v2

$154.99
Buy on Amazon USACheck price
  • + Metering: Three-Phase Support, Solar Net Metering, Power Factor Readings
  • + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • - Price: $154.99 vs $119.99
  • - Rating: 4.5 vs 4.6
Winner
Shelly

Shelly Pro EM-50

$119.99
Buy on Amazon USACheck price
  • + Price: $119.99
  • + Rating: 4.6
  • + Relay Output: YES
  • - Metering: Solar Net Metering, Power Factor Readings vs Three-Phase Support, Solar Net Metering, Power Factor Readings
  • - 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 v2 or Shelly Pro EM-50?

Shelly Pro EM-50 has the stronger overall profile in this comparison, especially for price, rating, and relay output.

What is the biggest difference between Shelly Pro 3EM v2 and Shelly Pro EM-50?

Price is one of the clearest differences: Shelly Pro 3EM v2 lists $154.99, while Shelly Pro EM-50 lists $119.99.

Which one looks better on price?

Shelly Pro 3EM v2 is listed at $154.99, while Shelly Pro EM-50 is listed at $119.99. Shelly Pro EM-50 (better spec).

Who should buy Shelly Pro 3EM v2?

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

Who should buy Shelly Pro EM-50?

Choose Shelly Pro EM-50 if your priority is price and rating and that matters more than metering.

Full comparison table

Compare all 23 Energy Monitors side by side

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  • 46 specs compared
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