Relays · Head to head

Shelly 1 Mini Gen3 vs Sonoff MINI Duo 2

Full Smart Relays comparison in 2026

Updated July 2026

Data from Amazon and official Shelly and Sonoff sites.

2026 verdict

Between Shelly 1 Mini Gen3 and Sonoff MINI Duo 2, Shelly 1 Mini Gen3 is the better overall pick in 2026, leading on safety, connectivity, and integrations. The main reason it wins is safety, connectivity, and integrations, and dry contact mode and wet contact mode strengthen that case. The only strong reason to choose Sonoff MINI Duo 2 is if price and relay channels are more important to you than the overall verdict. For the average buyer, Shelly 1 Mini Gen3 is the safer choice.

Feature	Shelly 1 Mini Gen3	Sonoff MINI Duo 2	Winner
Price	$17.99	$17.90	Sonoff MINI Duo 2
Safety	Overheating protection	None	Shelly 1 Mini Gen3
Connectivity	2.4 GHz WiFi, Bluetooth	Zigbee	Shelly 1 Mini Gen3
Integrations	Google Home, Alexa, Samsung SmartThings, Home Assistant, Matter	Google Home, Alexa, Home Assistant	Shelly 1 Mini Gen3
Relay Channels	1	2	Sonoff MINI Duo 2
Dry Contact Mode	YES	NO	Shelly 1 Mini Gen3
Wet Contact Mode	YES	NO	Shelly 1 Mini Gen3
Rating	4.5	4.5	Tie
Energy Monitoring	NO	NO	Tie
Power Off Memory	NO	NO	Tie
Zibgee Router	NO	NO	Tie

Winner

Shelly 1 Mini Gen3

$17.99

Buy on Amazon USA

+ Safety: Overheating protection
+ Connectivity: 2.4 GHz WiFi, Bluetooth
+ Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant, Matter
- Price: $17.99 vs $17.90
- Relay Channels: 1 vs 2

Sonoff MINI Duo 2

$17.90

Buy on Amazon USA

+ Price: $17.90
+ Relay Channels: 2
- Safety: None vs Overheating protection
- Connectivity: Zigbee vs 2.4 GHz WiFi, Bluetooth

Frequently Asked Questions

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

Shelly 1 Mini Gen3 has the stronger overall profile in this comparison, especially for safety, connectivity, and integrations.

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

Price is one of the clearest differences: Shelly 1 Mini Gen3 lists $17.99, while Sonoff MINI Duo 2 lists $17.90.

Which one looks better on price?

Shelly 1 Mini Gen3 is listed at $17.99, while Sonoff MINI Duo 2 is listed at $17.90. Sonoff MINI Duo 2 (better spec).

Who should buy Shelly 1 Mini Gen3?

Choose Shelly 1 Mini Gen3 if your priority is safety and connectivity 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 safety.

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

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