Energy Monitors · Head to head

Shelly EM Gen3 vs Zemismart SDM01

Full Smart Energy Monitors comparison in 2026

Updated September 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.
Shelly EM Gen3
Winner
Shelly EM Gen3
$69.99
Buy on Amazon USACheck price
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
Price alerts

Energy Monitor prices change while you decide

We check the price of every Energy Monitor in the catalog daily and email you the drops, whichever one you pick.

Your subscription could not be saved. Please try again.
Your subscription has been successful.

Smart home deals and news, straight to your inbox

Price drops, new releases and the smart home news worth knowing.

No spam. Unsubscribe in one click.

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
Winner
Shelly

Shelly EM Gen3

$69.99
Buy on Amazon USACheck price
  • + Price: $69.99
  • + Connectivity: 2.4 GHz WiFi, Bluetooth
  • + Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant
  • - Metering: Solar Net Metering, Power Factor Readings vs Three-Phase Support, Solar Net Metering, Power Factor Readings

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.

Full comparison table

Compare all 23 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.

  • 23 Energy Monitors
  • 46 specs compared
  • 43 filters
Open the full comparison
More Energy Monitors

Top Energy Monitors to compare next

23 home energy monitors from 7 brands compared: Shelly, Emporia, Refoss and more. Circuit counts, CT clamps, local control and Home Assistant support.

All Energy Monitors
Shelly

More Shelly products

A sharper look at other Shelly products worth comparing.

Explore Shelly
Zemismart

More Zemismart products

A sharper look at other Zemismart products worth comparing.

Explore Zemismart
Independent · Not sponsoredBrands never pay for placement or rankings. Affiliate commissions never influence our comparisons.
© 2026 Smart Home Compared
Search