Energy Monitors · Head to head

Refoss EM16P vs Shelly Pro 3EM v2

Full Smart Energy Monitors comparison in 2026

Updated November 2026
Data from the official Refoss and Shelly sites.
2026 verdict
Shelly Pro 3EM v2 beats Refoss EM16P in 2026, with its clearest edge on price, rating, and warranty.
Shelly Pro 3EM v2
Winner
Shelly Pro 3EM v2
$154.99
Buy on Amazon USA
The comparison tilts its way because of price, rating, and warranty, with connectivity and integrations keeping it in front. Refoss EM16P still makes sense if its specific feature mix is your priority, but most buyers should still lean toward Shelly Pro 3EM v2. Overall, Shelly Pro 3EM v2 makes more sense for most people.
Works with
Connectivity
vs
Works with
Connectivity
News by email

Still comparing? Get what's new by email

New releases and the smart home news worth knowing, in your inbox.

Smart home news and new releases, straight to your inbox

New releases, comparisons and the smart home news worth knowing.

No spam. Unsubscribe in one click.

Your subscription could not be saved. Please try again.
Please enter a valid email address.
Tick the box above to finish signing up.
We couldn't verify you're human. Please try again.
Too many attempts. Please try again in an hour.
Your subscription has been successful.
FeatureRefoss EM16PShelly Pro 3EM v2Winner
Price$179.99$154.99Shelly Pro 3EM v2
Rating4.14.6Shelly Pro 3EM v2
Warranty2 years3 yearsShelly Pro 3EM v2
Connectivity2.4 GHz WiFi, Bluetooth2.4 GHz WiFi, Ethernet, Bluetooth, OtherShelly Pro 3EM v2
IntegrationsHome AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterShelly Pro 3EM v2
Data & MonitoringEnergy Cost Tracking, Data Export, Usage AlertsEnergy Cost Tracking, Time-of-Use Rates, Data Export, Usage AlertsShelly Pro 3EM v2
MeteringSplit-Phase Support, Three-Phase Support, Solar Net Metering, Power Factor ReadingsThree-Phase Support, Solar Net Metering, Power Factor ReadingsTie
Breaker Panel InstallYESYESTie
Smart Meter PortNONOTie
Local ControlLocal API, MQTT, Local Web InterfaceLocal API, MQTT, Local Web InterfaceTie
Relay OutputNONOTie
Load ManagementYESYESTie

Frequently Asked Questions

Which is better overall: Refoss EM16P or Shelly Pro 3EM v2?

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

What is the biggest difference between Refoss EM16P and Shelly Pro 3EM v2?

Price is one of the clearest differences: Refoss EM16P lists $179.99, while Shelly Pro 3EM v2 lists $154.99.

Which one looks better on price?

Refoss EM16P is listed at $179.99, while Shelly Pro 3EM v2 is listed at $154.99. Shelly Pro 3EM v2 (better spec).

Who should buy Refoss EM16P?

Choose Refoss EM16P if your priority is its specific strengths and that matters more than price.

Who should buy Shelly Pro 3EM v2?

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

Spotted something wrong on this page? Tell us and we will fix it.

AmazonOur store on AmazonShop our ideas on AmazonLists of the smart home setups we would put together ourselves, ready to add to your Amazon cart.Shop on Amazon
Full comparison table

Compare all 25 Energy Monitors side by side

You are looking at two of them. The full table lines up all Energy Monitors in the catalog with the same specs, so you can filter by what you need and sort by price or rating.

  • 25 Energy Monitors
  • 47 specs compared
  • 44 filters
Open the full comparison
More Energy Monitors

Top Energy Monitors to compare next

25 home energy monitors from 8 brands compared: Shelly, Emporia, Refoss and more. Circuit counts, CT clamps, local control and Home Assistant support.

All Energy Monitors
Refoss

More Refoss products

A sharper look at other Refoss products worth comparing.

Explore Refoss
Shelly

More Shelly products

A sharper look at other Shelly products worth comparing.

Explore Shelly
Independent · Not sponsoredBrands never pay for placement or rankings. Affiliate commissions never influence our comparisons.

As an Amazon Associate I earn from qualifying purchases.

CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED ‘AS IS’ AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

© 2026 Smart Home Compared
Search