Winner
Updated November 2026
Data from the 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 local control.
It separates itself most clearly on connectivity, integrations, and local control, while still looking better on relay output and load management. 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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| Feature | Shelly Pro EM-50 | Zemismart SDM01 | Winner |
|---|---|---|---|
| Price | $119.99 | $82.61 | Zemismart SDM01 |
| Metering | Solar Net Metering, Power Factor Readings | Three-Phase Support, Solar Net Metering, Power Factor Readings | Zemismart SDM01 |
| Connectivity | 2.4 GHz WiFi, Ethernet, Bluetooth, Other | Zigbee | Shelly Pro EM-50 |
| Integrations | Google Home, Alexa, Samsung SmartThings, Home Assistant | Home Assistant | Shelly Pro EM-50 |
| Local Control | Local API, MQTT, Local Web Interface | None | Shelly Pro EM-50 |
| Relay Output | YES | NO | Shelly Pro EM-50 |
| Load Management | YES | NO | Shelly Pro EM-50 |
| Breaker Panel Install | YES | YES | Tie |
| Smart Meter Port | NO | NO | Tie |
| Data & Monitoring | Energy Cost Tracking, Time-of-Use Rates, Data Export, Usage Alerts | Usage Alerts | Tie |
| Local Control | YES | YES | Tie |
Winner
$119.99
- + Connectivity: 2.4 GHz WiFi, Ethernet, Bluetooth, Other
- + Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant
- + Local Control: Local API, MQTT, Local Web Interface
- - Price: $119.99 vs $82.61
- - Metering: Solar Net Metering, Power Factor Readings vs Three-Phase Support, Solar Net Metering, Power Factor Readings
50% OFF
$82.61
$165.22
- + 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 local control.
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.
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