Energy Monitors · Head to head

Shelly Pro EM-50 vs Zemismart SDM01

Full Smart Energy Monitors comparison in 2026

Updated September 2026
Data from Amazon and official Shelly and Zemismart sites.
2026 verdict
Across the 2026 comparison, Shelly Pro EM-50 earns the nod over Zemismart SDM01 on the strength of connectivity, integrations, and data & monitoring.
Shelly Pro EM-50
Winner
Shelly Pro EM-50
$119.99
Buy on Amazon USACheck price
It separates itself most clearly on connectivity, integrations, and data & monitoring, while still looking better on local control and relay output. Zemismart SDM01 is still relevant if you care most about price and metering, but Shelly Pro EM-50 is the stronger recommendation overall. That makes Shelly Pro EM-50 the clearer recommendation in 2026.
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FeatureShelly Pro EM-50Zemismart SDM01Winner
Price$119.99$82.61Zemismart SDM01
MeteringSolar Net Metering, Power Factor ReadingsThree-Phase Support, Solar Net Metering, Power Factor ReadingsZemismart SDM01
Connectivity2.4 GHz WiFi, Ethernet, Bluetooth, OtherZigbeeShelly Pro EM-50
IntegrationsGoogle Home, Alexa, Samsung SmartThings, Home AssistantHome AssistantShelly Pro EM-50
Data & MonitoringEnergy Cost Tracking, Time-of-Use Rates, Data Export, Usage AlertsUsage AlertsShelly Pro EM-50
Local ControlLocal API, MQTT, Local Web InterfaceNoneShelly Pro EM-50
Relay OutputYESNOShelly Pro EM-50
Load ManagementYESNOShelly Pro EM-50
Breaker Panel InstallYESYESTie
Smart Meter PortNONOTie
Winner
Shelly

Shelly Pro EM-50

$119.99
Buy on Amazon USACheck price
  • + Connectivity: 2.4 GHz WiFi, Ethernet, Bluetooth, Other
  • + Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant
  • + Data & Monitoring: Energy Cost Tracking, Time-of-Use Rates, Data Export, Usage Alerts
  • - Price: $119.99 vs $82.61
  • - Metering: Solar Net Metering, Power Factor Readings vs Three-Phase Support, Solar Net Metering, Power Factor Readings
Zemismart

Zemismart SDM01

50% OFF
$82.61
$165.22
Buy on Official StoreCheck price
  • + Price: $82.61
  • + Metering: Three-Phase Support, Solar Net Metering, Power Factor Readings
  • - Connectivity: Zigbee vs 2.4 GHz WiFi, Ethernet, Bluetooth, Other
  • - Integrations: Home Assistant vs Google Home, Alexa, Samsung SmartThings, Home Assistant

Frequently Asked Questions

Which is better overall: Shelly Pro EM-50 or Zemismart SDM01?

Shelly Pro EM-50 has the stronger overall profile in this comparison, especially for connectivity, integrations, and data & monitoring.

What is the biggest difference between Shelly Pro EM-50 and Zemismart SDM01?

Price is one of the clearest differences: Shelly Pro EM-50 lists $119.99, while Zemismart SDM01 lists $82.61.

Which one looks better on price?

Shelly Pro EM-50 is listed at $119.99, while Zemismart SDM01 is listed at $82.61. Zemismart SDM01 (better spec).

Who should buy Shelly Pro EM-50?

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

Who should buy Zemismart SDM01?

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

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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