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Energy Monitors · Head to head

Shelly 3EM-63W Gen3 vs Shelly Pro EM-50

Full Smart Energy Monitors comparison in 2026

Updated October 2026
Data from Amazon and official Shelly site.
2026 verdict
In this 2026 Shelly Pro EM-50 vs Shelly 3EM-63W Gen3 comparison, Shelly Pro EM-50 comes out ahead thanks to connectivity and relay output.
Shelly Pro EM-50
Winner
Shelly Pro EM-50
$119.99

Last recorded price

Buy on Amazon USA
Its biggest wins come from connectivity and relay output, and its broader overall balance adds more confidence to the verdict. Choose Shelly 3EM-63W Gen3 only if price and metering matter more to you than the broader advantage from Shelly Pro EM-50. That is enough to make Shelly Pro EM-50 the better pick for most buyers.
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FeatureShelly 3EM-63W Gen3Shelly Pro EM-50Winner
Price$91.99$119.99Shelly 3EM-63W Gen3
MeteringThree-Phase Support, Solar Net Metering, Power Factor ReadingsSolar Net Metering, Power Factor ReadingsShelly 3EM-63W Gen3
Connectivity2.4 GHz WiFi, Bluetooth2.4 GHz WiFi, Ethernet, Bluetooth, OtherShelly Pro EM-50
Relay OutputNOYESShelly Pro EM-50
Rating4.64.6Tie
Warranty3 years3 yearsTie
Breaker Panel InstallYESYESTie
Smart Meter PortNONOTie
IntegrationsGoogle Home, Alexa, Samsung SmartThings, Home AssistantGoogle Home, Alexa, Samsung SmartThings, Home AssistantTie
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 3EM-63W Gen3

20% OFF
Prime exclusive deal
$91.99
$114.99

Last recorded price

Buy on Amazon USA
  • + Price: $91.99
  • + Metering: Three-Phase Support, Solar Net Metering, Power Factor Readings
  • - Connectivity: 2.4 GHz WiFi, Bluetooth vs 2.4 GHz WiFi, Ethernet, Bluetooth, Other
  • - Relay Output: NO vs YES
Winner
Shelly

Shelly Pro EM-50

Prime exclusive deal
$119.99

Last recorded price

Buy on Amazon USA
  • + Connectivity: 2.4 GHz WiFi, Ethernet, Bluetooth, Other
  • + Relay Output: YES
  • - Price: $119.99 vs $91.99
  • - Metering: Solar Net Metering, Power Factor Readings vs Three-Phase Support, Solar Net Metering, Power Factor Readings

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Shelly 3EM-63W Gen3
  • Shelly Pro EM-50

Loading price history...

Frequently Asked Questions

Which is better overall: Shelly 3EM-63W Gen3 or Shelly Pro EM-50?

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

What is the biggest difference between Shelly 3EM-63W Gen3 and Shelly Pro EM-50?

Price is one of the clearest differences: Shelly 3EM-63W Gen3 lists $91.99, while Shelly Pro EM-50 lists $119.99.

Which one looks better on price?

Shelly 3EM-63W Gen3 is listed at $91.99, while Shelly Pro EM-50 is listed at $119.99. Shelly 3EM-63W Gen3 (better spec).

Who should buy Shelly 3EM-63W Gen3?

Choose Shelly 3EM-63W Gen3 if your priority is price and metering and that matters more than connectivity.

Who should buy Shelly Pro EM-50?

Choose Shelly Pro EM-50 if your priority is connectivity and relay output and that matters more than price.

Full comparison table

Compare all 25 Energy Monitors side by side

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  • 25 Energy Monitors
  • 46 specs compared
  • 43 filters
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