Energy Monitors · Head to head

Shelly EM Gen3 vs Shelly EM Gen4

Full Smart Energy Monitors comparison in 2026

Updated September 2026
Data from Amazon and official Shelly site.
2026 verdict
Shelly EM Gen4 beats Shelly EM Gen3 in 2026, with its clearest edge on connectivity and integrations.
Shelly EM Gen4
Winner
Shelly EM Gen4
Buy on Amazon UKCheck price
It wins the broader comparison through connectivity and integrations, while its broader overall balance helps confirm the result. Choose Shelly EM Gen3 only if its specific feature mix matters more to you than the broader advantage from Shelly EM Gen4. For the average buyer, Shelly EM Gen4 is the safer choice.
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FeatureShelly EM Gen3Shelly EM Gen4Winner
Connectivity2.4 GHz WiFi, Bluetooth2.4 GHz WiFi, Bluetooth, ZigbeeShelly EM Gen4
IntegrationsGoogle Home, Alexa, Samsung SmartThings, Home AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterShelly EM Gen4
Rating4.64.6Tie
Warranty3 years3 yearsTie
MeteringSolar Net Metering, Power Factor ReadingsSolar Net Metering, Power Factor ReadingsTie
Breaker Panel InstallYESYESTie
Smart Meter PortNONOTie
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 OutputYESYESTie
Load ManagementYESYESTie
Shelly

Shelly EM Gen3

$69.99
Buy on Amazon USACheck price
  • - Connectivity: 2.4 GHz WiFi, Bluetooth vs 2.4 GHz WiFi, Bluetooth, Zigbee
  • - 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 EM Gen3 or Shelly EM Gen4?

Shelly EM Gen4 has the stronger overall profile in this comparison, especially for connectivity and integrations.

What is the biggest difference between Shelly EM Gen3 and Shelly EM Gen4?

Connectivity is one of the clearest differences: Shelly EM Gen3 lists 2.4 GHz WiFi, Bluetooth, while Shelly EM Gen4 lists 2.4 GHz WiFi, Bluetooth, Zigbee.

Who should buy Shelly EM Gen3?

Choose Shelly EM Gen3 if your priority is its specific strengths and that matters more than connectivity.

Who should buy Shelly EM Gen4?

Choose Shelly EM Gen4 if your priority is connectivity and integrations and that matters more than the competing advantages.

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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