Energy Monitors · Head to head

Shelly EM Gen3 vs Zemismart SDM01

Full Smart Energy Monitors comparison in 2026

Data from Amazon and official Shelly and Zemismart sites.
2026 verdict
Shelly EM Gen3 has the better all-around case than Zemismart SDM01 in 2026, starting with price, connectivity, and integrations. Its biggest wins come from price, connectivity, and integrations, and data & monitoring and local control add more confidence to the verdict. Zemismart SDM01 still makes sense if metering is your priority, but most buyers should still lean toward Shelly EM Gen3. Overall, Shelly EM Gen3 makes more sense for most people.
vs
FeatureShelly EM Gen3Zemismart SDM01Winner
Price$69.99$82.61Shelly EM Gen3
MeteringSolar Net Metering, Power Factor ReadingsThree-Phase Support, Solar Net Metering, Power Factor ReadingsZemismart SDM01
Connectivity2.4 GHz WiFi, BluetoothZigbeeShelly EM Gen3
IntegrationsGoogle Home, Alexa, Samsung SmartThings, Home AssistantHome AssistantShelly EM Gen3
Data & MonitoringEnergy Cost Tracking, Time-of-Use Rates, Data Export, Usage AlertsUsage AlertsShelly EM Gen3
Local ControlLocal API, MQTT, Local Web InterfaceNoneShelly EM Gen3
Relay OutputYESNOShelly EM Gen3
Load ManagementYESNOShelly EM Gen3
Breaker Panel InstallYESYESTie
Smart Meter PortNONOTie

Frequently Asked Questions

Which is better overall: Shelly EM Gen3 or Zemismart SDM01?

Shelly EM Gen3 has the stronger overall profile in this comparison, especially for price, connectivity, and integrations.

What is the biggest difference between Shelly EM Gen3 and Zemismart SDM01?

Price is one of the clearest differences: Shelly EM Gen3 lists $69.99, while Zemismart SDM01 lists $82.61.

Which one looks better on price?

Shelly EM Gen3 is listed at $69.99, while Zemismart SDM01 is listed at $82.61. Shelly EM Gen3 (better spec).

Who should buy Shelly EM Gen3?

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

Who should buy Zemismart SDM01?

Choose Zemismart SDM01 if your priority is metering and that matters more than price.

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