Updated November 2026
Data from the official NodOn and Shelly sites.
2026 verdict
In 2026, the recommendation leans toward Shelly EM Gen3 over NodOn Zigbee Smart Energy Monitor, driven by warranty, connectivity, and integrations.
Its clearest strengths are warranty, connectivity, and integrations, and it still looks stronger on data & monitoring and local control. Pick NodOn Zigbee Smart Energy Monitor only when price and rating are the deciding factor for your setup. That is enough to make Shelly EM Gen3 the better pick for most buyers.
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| Feature | NodOn Zigbee Smart Energy Monitor | Shelly EM Gen3 | Winner |
|---|---|---|---|
| Price | $58.13 | $69.99 | NodOn Zigbee Smart Energy Monitor |
| Rating | 4.7 | 4.6 | NodOn Zigbee Smart Energy Monitor |
| Warranty | 2 years | 3 years | Shelly EM Gen3 |
| Connectivity | Zigbee | 2.4 GHz WiFi, Bluetooth | Shelly EM Gen3 |
| Integrations | Samsung SmartThings, Home Assistant | Google Home, Alexa, Samsung SmartThings, Home Assistant | Shelly EM Gen3 |
| Data & Monitoring | None | Energy Cost Tracking, Time-of-Use Rates, Data Export, Usage Alerts | Shelly EM Gen3 |
| Local Control | None | Local API, MQTT, Local Web Interface | Shelly EM Gen3 |
| Relay Output | NO | YES | Shelly EM Gen3 |
| Metering | Solar Net Metering, Power Factor Readings | Solar Net Metering, Power Factor Readings | Tie |
| Breaker Panel Install | YES | YES | Tie |
| Smart Meter Port | NO | NO | Tie |
| Load Management | YES | YES | Tie |
$58.13
- + Price: $58.13
- + Rating: 4.7
- - Warranty: 2 years vs 3 years
- - Connectivity: Zigbee vs 2.4 GHz WiFi, Bluetooth
Winner
$69.99
- + Warranty: 3 years
- + Connectivity: 2.4 GHz WiFi, Bluetooth
- + Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant
- - Price: $69.99 vs $58.13
- - Rating: 4.6 vs 4.7
Frequently Asked Questions
Which is better overall: NodOn Zigbee Smart Energy Monitor or Shelly EM Gen3?
Shelly EM Gen3 has the stronger overall profile in this comparison, especially for warranty, connectivity, and integrations.
What is the biggest difference between NodOn Zigbee Smart Energy Monitor and Shelly EM Gen3?
Price is one of the clearest differences: NodOn Zigbee Smart Energy Monitor lists $58.13, while Shelly EM Gen3 lists $69.99.
Which one looks better on price?
NodOn Zigbee Smart Energy Monitor is listed at $58.13, while Shelly EM Gen3 is listed at $69.99. 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 EM Gen3?
Choose Shelly EM Gen3 if your priority is warranty and connectivity 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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EM06P
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EM06P
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EM16P
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MINI PM Zigbee Power Meter (Non-Switch)
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Vue Utility Connect
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3CT Zigbee Energy Meter
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EM01P
- Buttons
Battery-free Zigbee Wall Switch
- Energy Monitors
3CT Zigbee Energy Meter
- IR Remote Controls
Zigbee AC Infrared Controller
- Radiator Valves
Zigbee Thermostatic Radiator Valve
- Relays
Zigbee Multifunction Relay Switch with Metering
- Relays
Zigbee Multifunction Relay Switch
- Relays
Zigbee ON/OFF Lighting Relay Switch
- Relays
Zigbee Pilot Wire Heating Module
- Relays
Zigbee Roller Shutter Relay Switch
- Temperature & Humidity Sensors
Zigbee Temperature and Humidity Sensor
- Buttons
BLU Button Tough 1 ZB
- Buttons
BLU RC Button 4 ZB
- Cameras
Camera
- Displays
Wall Display X1i
- Displays
Wall Display XL
- Displays
Wall Display
- Door & Window Sensors
BLU Door/Window Outdoor ZB
- Door & Window Sensors
BLU Door/Window ZB
- Energy Monitors
3EM-63W Gen3
- Energy Monitors
EM Gen4
- Energy Monitors
EM Mini Gen4
- Energy Monitors
Pro 3EM 3CT63
- Energy Monitors
Pro 3EM-400
- Energy Monitors
Pro 3EM v2
- Energy Monitors
Pro EM-50
- Gas Detectors
GAS (CNG)
- Gas Detectors
GAS (LPG)
- LED Bulbs
Multicolor Bulb E27 Gen3
- Motion Sensors
BLU Motion ZB
- Motion Sensors
Blu Motion