Shelly Pro 3EM 3CT63 vs Shelly Pro 3EM v2 comparison

Data from Amazon and official Shelly site.

2026 verdict

Shelly Pro 3EM v2 is the more complete option versus Shelly Pro 3EM 3CT63 in 2026, helped most by rating and integrations. Its biggest wins come from rating and integrations, and its broader overall balance adds more confidence to the verdict. Shelly Pro 3EM 3CT63 can still be the right pick, but only if price and warranty outweigh the wider strengths of Shelly Pro 3EM v2. For the average buyer, Shelly Pro 3EM v2 is the safer choice.

Shelly

Shelly Pro 3EM 3CT63

$150.99

Buy on Amazon USA

Winner

Shelly

Shelly Pro 3EM v2

$154.99

Buy on Amazon USA

Feature	Shelly Pro 3EM 3CT63	Shelly Pro 3EM v2	Winner
Price	$150.99	$154.99	Shelly Pro 3EM 3CT63
Rating	4.4	4.5	Shelly Pro 3EM v2
Warranty	5 years	3 years	Shelly Pro 3EM 3CT63
Integrations	Google Home, Alexa, Home Assistant	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	Shelly Pro 3EM v2
Metering	Three-Phase Support, Solar Net Metering, Power Factor Readings	Three-Phase Support, Solar Net Metering, Power Factor Readings	Tie
Breaker Panel Install	YES	YES	Tie
Smart Meter Port	NO	NO	Tie
Connectivity	2.4 GHz WiFi, Ethernet, Bluetooth, Other	2.4 GHz WiFi, Ethernet, Bluetooth, Other	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
Relay Output	NO	NO	Tie
Load Management	YES	YES	Tie

Shelly

Shelly Pro 3EM 3CT63

$150.99

Buy on Amazon USA

+ Price: $150.99
+ Warranty: 5 years
- Rating: 4.4 vs 4.5
- Integrations: Google Home, Alexa, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter

Winner

Shelly

Shelly Pro 3EM v2

$154.99

Buy on Amazon USA

+ Rating: 4.5
+ Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
- Price: $154.99 vs $150.99
- Warranty: 3 years vs 5 years

Frequently Asked Questions

Which is better overall: Shelly Pro 3EM 3CT63 or Shelly Pro 3EM v2?

Shelly Pro 3EM v2 has the stronger overall profile in this comparison, especially for rating and integrations.

What is the biggest difference between Shelly Pro 3EM 3CT63 and Shelly Pro 3EM v2?

Price is one of the clearest differences: Shelly Pro 3EM 3CT63 lists $150.99, while Shelly Pro 3EM v2 lists $154.99.

Which one looks better on price?

Shelly Pro 3EM 3CT63 is listed at $150.99, while Shelly Pro 3EM v2 is listed at $154.99. Shelly Pro 3EM 3CT63 (better spec).

Who should buy Shelly Pro 3EM 3CT63?

Choose Shelly Pro 3EM 3CT63 if your priority is price and warranty and that matters more than rating.

Who should buy Shelly Pro 3EM v2?

Choose Shelly Pro 3EM v2 if your priority is rating and integrations and that matters more than price.

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