Updated November 2026
Data from the official NodOn and Shelly sites.
2026 verdict
Shelly 3EM-63W Gen3 is the more complete option versus NodOn Zigbee Smart Energy Monitor in 2026, helped most by warranty, metering, and connectivity.
Its strongest advantages show up in warranty, metering, and connectivity, with integrations and data & monitoring helping widen the gap. Choose NodOn Zigbee Smart Energy Monitor only if price and rating matter more to you than the broader advantage from Shelly 3EM-63W Gen3. That is why Shelly 3EM-63W Gen3 wins the verdict here.
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| Feature | NodOn Zigbee Smart Energy Monitor | Shelly 3EM-63W Gen3 | Winner |
|---|---|---|---|
| Price | $58.13 | $114.99 | NodOn Zigbee Smart Energy Monitor |
| Rating | 4.7 | 4.5 | NodOn Zigbee Smart Energy Monitor |
| Warranty | 2 years | 3 years | Shelly 3EM-63W Gen3 |
| Metering | Solar Net Metering, Power Factor Readings | Three-Phase Support, Solar Net Metering, Power Factor Readings | Shelly 3EM-63W Gen3 |
| Connectivity | Zigbee | 2.4 GHz WiFi, Bluetooth | Shelly 3EM-63W Gen3 |
| Integrations | Samsung SmartThings, Home Assistant | Google Home, Alexa, Samsung SmartThings, Home Assistant | Shelly 3EM-63W Gen3 |
| Data & Monitoring | None | Energy Cost Tracking, Time-of-Use Rates, Data Export, Usage Alerts | Shelly 3EM-63W Gen3 |
| Local Control | None | Local API, MQTT, Local Web Interface | Shelly 3EM-63W Gen3 |
| Breaker Panel Install | YES | YES | Tie |
| Smart Meter Port | NO | NO | Tie |
| Relay Output | NO | NO | Tie |
| Load Management | YES | YES | Tie |
$58.13
- + Price: $58.13
- + Rating: 4.7
- - Warranty: 2 years vs 3 years
- - Metering: Solar Net Metering, Power Factor Readings vs Three-Phase Support, Solar Net Metering, Power Factor Readings
Winner
$114.99
- + Warranty: 3 years
- + Metering: Three-Phase Support, Solar Net Metering, Power Factor Readings
- + Connectivity: 2.4 GHz WiFi, Bluetooth
- - Price: $114.99 vs $58.13
- - Rating: 4.5 vs 4.7
Frequently Asked Questions
Which is better overall: NodOn Zigbee Smart Energy Monitor or Shelly 3EM-63W Gen3?
Shelly 3EM-63W Gen3 has the stronger overall profile in this comparison, especially for warranty, metering, and connectivity.
What is the biggest difference between NodOn Zigbee Smart Energy Monitor and Shelly 3EM-63W Gen3?
Price is one of the clearest differences: NodOn Zigbee Smart Energy Monitor lists $58.13, while Shelly 3EM-63W Gen3 lists $114.99.
Which one looks better on price?
NodOn Zigbee Smart Energy Monitor is listed at $58.13, while Shelly 3EM-63W Gen3 is listed at $114.99. NodOn Zigbee Smart Energy Monitor (better spec).
Who should buy NodOn Zigbee Smart Energy Monitor?
Choose NodOn Zigbee Smart Energy Monitor if your priority is price and rating and that matters more than warranty.
Who should buy Shelly 3EM-63W Gen3?
Choose Shelly 3EM-63W Gen3 if your priority is warranty and metering and that matters more than price.
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Compare all 25 Energy Monitors side by side
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- 25 Energy Monitors
- 47 specs compared
- 44 filters
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Pro 3EM-400
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