Data from Amazon and official Shelly site.
2026 verdict
In this 2026 Shelly Pro EM-50 vs Shelly 3EM-63W Gen3 comparison, Shelly Pro EM-50 comes out ahead thanks to connectivity and relay output. Its biggest wins come from connectivity and relay output, and its broader overall balance adds more confidence to the verdict. Choose Shelly 3EM-63W Gen3 only if price and metering matter more to you than the broader advantage from Shelly Pro EM-50. That is enough to make Shelly Pro EM-50 the better pick for most buyers.
| Feature | Shelly 3EM-63W Gen3 | Shelly Pro EM-50 | Winner |
|---|---|---|---|
| Price | €59.99 | $119.99 | Shelly 3EM-63W Gen3 |
| Metering | Three-Phase Support, Solar Net Metering, Power Factor Readings | Solar Net Metering, Power Factor Readings | Shelly 3EM-63W Gen3 |
| Connectivity | 2.4 GHz WiFi, Bluetooth | 2.4 GHz WiFi, Ethernet, Bluetooth, Other | Shelly Pro EM-50 |
| Relay Output | NO | YES | Shelly Pro EM-50 |
| Warranty | 3 years | 3 years | Tie |
| Breaker Panel Install | YES | YES | Tie |
| Smart Meter Port | NO | NO | Tie |
| Integrations | Google Home, Alexa, Home Assistant | Google Home, Alexa, Home Assistant | Tie |
| Data & Monitoring | Energy Cost Tracking, Time-of-Use Rates, Data Export, Usage Alerts | Energy Cost Tracking, Time-of-Use Rates, Data Export, Usage Alerts | Tie |
| Local Control | Local API, MQTT, Local Web Interface | Local API, MQTT, Local Web Interface | Tie |
| Load Management | YES | YES | Tie |
16% OFF
€59.99
€71.28
- + Price: €59.99
- + Metering: Three-Phase Support, Solar Net Metering, Power Factor Readings
- - Connectivity: 2.4 GHz WiFi, Bluetooth vs 2.4 GHz WiFi, Ethernet, Bluetooth, Other
- - Relay Output: NO vs YES
Winner
$119.99
- + Connectivity: 2.4 GHz WiFi, Ethernet, Bluetooth, Other
- + Relay Output: YES
- - Price: $119.99 vs €59.99
- - 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 3EM-63W Gen3 or Shelly Pro EM-50?
Shelly Pro EM-50 has the stronger overall profile in this comparison, especially for connectivity and relay output.
What is the biggest difference between Shelly 3EM-63W Gen3 and Shelly Pro EM-50?
Price is one of the clearest differences: Shelly 3EM-63W Gen3 lists €59.99, while Shelly Pro EM-50 lists $119.99.
Which one looks better on price?
Shelly 3EM-63W Gen3 is listed at €59.99, while Shelly Pro EM-50 is listed at $119.99. Shelly 3EM-63W Gen3 (better spec).
Who should buy Shelly 3EM-63W Gen3?
Choose Shelly 3EM-63W Gen3 if your priority is price and metering and that matters more than connectivity.
Who should buy Shelly Pro EM-50?
Choose Shelly Pro EM-50 if your priority is connectivity and relay output and that matters more than price.
