Relays · Head to head

Shelly 1 Gen3 vs Sonoff MINI Duo 2

Full Smart Relays comparison in 2026

Updated November 2026
Data from the official Shelly and Sonoff sites.
2026 verdict
In this 2026 Sonoff MINI Duo 2 vs Shelly 1 Gen3 comparison, Sonoff MINI Duo 2 comes out ahead thanks to price, relay channels, and zigbee router.
Sonoff MINI Duo 2
Winner
Sonoff MINI Duo 2
$17.90
Buy on Amazon USA
Its biggest wins come from price, relay channels, and zigbee router, and its broader overall balance adds more confidence to the verdict. The only strong reason to choose Shelly 1 Gen3 is if connectivity and integrations are more important to you than the overall verdict. That makes Sonoff MINI Duo 2 the clearer recommendation in 2026.
Shelly 1 Gen3
Shelly

Shelly 1 Gen3

Prime exclusive deal
$18.39
Buy on Amazon USA

Also sold in packs

  • Pack of 2£33.50£16.75 per unitBuy
  • Pack of 420% OFF$68.77$85.96$17.19 per unitYou save $4.79Buy
Works with
Connectivity
vs
Winner
Sonoff MINI Duo 2
Sonoff

Sonoff MINI Duo 2

Prime exclusive deal
$17.90
Buy on Amazon USA

Also sold in packs

  • Pack of 2$34.90$17.45 per unitYou save $0.90Buy
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.
FeatureShelly 1 Gen3Sonoff MINI Duo 2Winner
Price$18.39$17.90Sonoff MINI Duo 2
Connectivity2.4 GHz WiFi, BluetoothZigbeeShelly 1 Gen3
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Samsung SmartThings, Home AssistantShelly 1 Gen3
Relay Channels12Sonoff MINI Duo 2
Zigbee RouterNOYESSonoff MINI Duo 2
Rating4.64.6Tie
SafetyOverheating protectionOverheating protection, Overvoltage protectionTie
Energy MonitoringNONOTie
Local ControlYESYESTie
Shutter ModeNONOTie
Shelly

Shelly 1 Gen3

Prime exclusive deal
$18.39
Buy on Amazon USA
  • + Connectivity: 2.4 GHz WiFi, Bluetooth
  • + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • - Price: $18.39 vs $17.90
  • - Relay Channels: 1 vs 2
Winner
Sonoff

Sonoff MINI Duo 2

Prime exclusive deal
$17.90
Buy on Amazon USA
  • + Price: $17.90
  • + Relay Channels: 2
  • + Zigbee Router: YES
  • - Connectivity: Zigbee vs 2.4 GHz WiFi, Bluetooth
  • - Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter

Frequently Asked Questions

Which is better overall: Shelly 1 Gen3 or Sonoff MINI Duo 2?

Sonoff MINI Duo 2 has the stronger overall profile in this comparison, especially for price, relay channels, and zigbee router.

What is the biggest difference between Shelly 1 Gen3 and Sonoff MINI Duo 2?

Price is one of the clearest differences: Shelly 1 Gen3 lists $18.39, while Sonoff MINI Duo 2 lists $17.90.

Which one looks better on price?

Shelly 1 Gen3 is listed at $18.39, while Sonoff MINI Duo 2 is listed at $17.90. Sonoff MINI Duo 2 (better spec).

Who should buy Shelly 1 Gen3?

Choose Shelly 1 Gen3 if your priority is connectivity and integrations and that matters more than price.

Who should buy Sonoff MINI Duo 2?

Choose Sonoff MINI Duo 2 if your priority is price and relay channels and that matters more than connectivity.

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 50 Relays side by side

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

  • 50 Relays
  • 56 specs compared
  • 52 filters
Open the full comparison
More Relays

Top Relays to compare next

50 smart relays and switch modules from 8 brands compared: Shelly, Sonoff, Aqara and more. Load ratings, dry contacts, protocols and local control.

All Relays
Shelly

More Shelly products

A sharper look at other Shelly products worth comparing.

Explore Shelly
Sonoff

More Sonoff products

A sharper look at other Sonoff products worth comparing.

Explore Sonoff
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