10% OFF
$179.99
$199.99
Updated November 2026
Data from the official Refoss and Shelly sites.
2026 verdict
Shelly 3EM-63W Gen3 has the better all-around case than Refoss EM16P in 2026, starting with price, rating, and warranty.
It wins the broader comparison through price, rating, and warranty, while integrations and data & monitoring help confirm the result. Refoss EM16P can still be the right pick, but only if metering outweighs the wider strengths of Shelly 3EM-63W Gen3. That is why the final call still favors Shelly 3EM-63W Gen3.
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| Feature | Refoss EM16P | Shelly 3EM-63W Gen3 | Winner |
|---|---|---|---|
| Price | $179.99 | $114.99 | Shelly 3EM-63W Gen3 |
| Rating | 4.1 | 4.5 | Shelly 3EM-63W Gen3 |
| Warranty | 2 years | 3 years | Shelly 3EM-63W Gen3 |
| Metering | Split-Phase Support, Three-Phase Support, Solar Net Metering, Power Factor Readings | Three-Phase Support, Solar Net Metering, Power Factor Readings | Refoss EM16P |
| Integrations | Home Assistant | Google Home, Alexa, Samsung SmartThings, Home Assistant | Shelly 3EM-63W Gen3 |
| Data & Monitoring | Energy Cost Tracking, Data Export, Usage Alerts | Energy Cost Tracking, Time-of-Use Rates, Data Export, Usage Alerts | Shelly 3EM-63W Gen3 |
| Breaker Panel Install | YES | YES | Tie |
| Smart Meter Port | NO | NO | Tie |
| Connectivity | 2.4 GHz WiFi, Bluetooth | 2.4 GHz WiFi, Bluetooth | Tie |
| Local Control | Local API, MQTT, Local Web Interface | Local API, MQTT, Local Web Interface | Tie |
| Relay Output | NO | NO | Tie |
| Load Management | YES | YES | Tie |
10% OFF
$179.99
$199.99
- + Metering: Split-Phase Support, Three-Phase Support, Solar Net Metering, Power Factor Readings
- - Price: $179.99 vs $114.99
- - Rating: 4.1 vs 4.5
Winner
$114.99
- + Price: $114.99
- + Rating: 4.5
- + Warranty: 3 years
- - Metering: Three-Phase Support, Solar Net Metering, Power Factor Readings vs Split-Phase Support, Three-Phase Support, Solar Net Metering, Power Factor Readings
Frequently Asked Questions
Which is better overall: Refoss EM16P or Shelly 3EM-63W Gen3?
Shelly 3EM-63W Gen3 has the stronger overall profile in this comparison, especially for price, rating, and warranty.
What is the biggest difference between Refoss EM16P and Shelly 3EM-63W Gen3?
Price is one of the clearest differences: Refoss EM16P lists $179.99, while Shelly 3EM-63W Gen3 lists $114.99.
Which one looks better on price?
Refoss EM16P is listed at $179.99, while Shelly 3EM-63W Gen3 is listed at $114.99. Shelly 3EM-63W Gen3 (better spec).
Who should buy Refoss EM16P?
Choose Refoss EM16P if your priority is metering and that matters more than price.
Who should buy Shelly 3EM-63W Gen3?
Choose Shelly 3EM-63W Gen3 if your priority is price and rating and that matters more than metering.
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