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Energy Monitors · Head to head

Shelly EM Gen3 vs SONOFF POWCT

Full Smart Energy Monitors comparison in 2026

Updated October 2026
Data from Amazon and official Shelly and Sonoff sites.
2026 verdict
Shelly EM Gen3 edges out SONOFF POWCT in 2026, led by rating, warranty, and metering.
Shelly EM Gen3
Winner
Shelly EM Gen3
$55.99$69.9920% OFFPrime exclusive deal

Last recorded price

Buy on Amazon USA
What pushes it ahead is rating, warranty, and metering, and connectivity and local control keep the advantage from looking narrow. Pick SONOFF POWCT only when price and integrations are the deciding factor for your setup. For most setups, Shelly EM Gen3 is the smarter buy.
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FeatureShelly EM Gen3SONOFF POWCTWinner
Price$55.99$30.55SONOFF POWCT
Rating4.64.5Shelly EM Gen3
Warranty3 years1 yearShelly EM Gen3
MeteringSolar Net Metering, Power Factor ReadingsSolar Net MeteringShelly EM Gen3
Connectivity2.4 GHz WiFi, Bluetooth2.4 GHz WiFiShelly EM Gen3
IntegrationsGoogle Home, Alexa, Samsung SmartThings, Home AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterSONOFF POWCT
Local ControlLocal API, MQTT, Local Web InterfaceNoneShelly EM Gen3
Breaker Panel InstallYESYESTie
Smart Meter PortNONOTie
Data & MonitoringEnergy Cost Tracking, Time-of-Use Rates, Data Export, Usage AlertsData Export, Usage AlertsTie
Relay OutputYESYESTie
Load ManagementYESYESTie
Winner
Shelly

Shelly EM Gen3

20% OFF
Prime exclusive deal
$55.99
$69.99

Last recorded price

Buy on Amazon USA
  • + Rating: 4.6
  • + Warranty: 3 years
  • + Metering: Solar Net Metering, Power Factor Readings
  • - Price: $55.99 vs $30.55
  • - Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
Sonoff

SONOFF POWCT

20% OFF
Prime exclusive deal
$30.55
$38.19

Last recorded price

Buy on Amazon USA
  • + Price: $30.55
  • + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • - Rating: 4.5 vs 4.6
  • - Warranty: 1 year vs 3 years

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 EM Gen3
  • SONOFF POWCT

Loading price history...

Frequently Asked Questions

Which is better overall: Shelly EM Gen3 or SONOFF POWCT?

Shelly EM Gen3 has the stronger overall profile in this comparison, especially for rating, warranty, and metering.

What is the biggest difference between Shelly EM Gen3 and SONOFF POWCT?

Price is one of the clearest differences: Shelly EM Gen3 lists $55.99, while SONOFF POWCT lists $30.55.

Which one looks better on price?

Shelly EM Gen3 is listed at $55.99, while SONOFF POWCT is listed at $30.55. SONOFF POWCT (better spec).

Who should buy Shelly EM Gen3?

Choose Shelly EM Gen3 if your priority is rating and warranty and that matters more than price.

Who should buy SONOFF POWCT?

Choose SONOFF POWCT if your priority is price and integrations and that matters more than rating.

Full comparison table

Compare all 25 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.

  • 25 Energy Monitors
  • 46 specs compared
  • 43 filters
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