Relays · Head to head

Shelly 1 Gen4 vs Sonoff MINI Duo-L

Full Smart Relays comparison in 2026

Updated July 2026

Data from Amazon and official Shelly and Sonoff sites.

2026 verdict

Across the 2026 comparison, Shelly 1 Gen4 earns the nod over Sonoff MINI Duo-L on the strength of rating, safety, and connectivity. What pushes it ahead is rating, safety, and connectivity, and integrations and dry contact mode keep the advantage from looking narrow. Sonoff MINI Duo-L is the better fit only for buyers who prioritize price and relay channels above everything else here. As a general recommendation, Shelly 1 Gen4 comes out on top.

Feature	Shelly 1 Gen4	Sonoff MINI Duo-L	Winner
Price	$24.99	$21.90	Sonoff MINI Duo-L
Rating	4.4	4.3	Shelly 1 Gen4
Safety	Overheating protection	None	Shelly 1 Gen4
Connectivity	Bluetooth, Zigbee	Zigbee	Shelly 1 Gen4
Integrations	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	Google Home, Alexa, Home Assistant	Shelly 1 Gen4
Relay Channels	1	2	Sonoff MINI Duo-L
Dry Contact Mode	YES	NO	Shelly 1 Gen4
Wet Contact Mode	YES	NO	Shelly 1 Gen4
Zibgee Router	YES	NO	Shelly 1 Gen4
Energy Monitoring	NO	NO	Tie
Power Off Memory	NO	NO	Tie

Winner

Shelly 1 Gen4

$24.99

Buy on Amazon USA

+ Rating: 4.4
+ Safety: Overheating protection
+ Connectivity: Bluetooth, Zigbee
- Price: $24.99 vs $21.90
- Relay Channels: 1 vs 2

Sonoff MINI Duo-L

$21.90

Buy on Amazon USA

+ Price: $21.90
+ Relay Channels: 2
- Rating: 4.3 vs 4.4
- Safety: None vs Overheating protection

Frequently Asked Questions

Which is better overall: Shelly 1 Gen4 or Sonoff MINI Duo-L?

Shelly 1 Gen4 has the stronger overall profile in this comparison, especially for rating, safety, and connectivity.

What is the biggest difference between Shelly 1 Gen4 and Sonoff MINI Duo-L?

Price is one of the clearest differences: Shelly 1 Gen4 lists $24.99, while Sonoff MINI Duo-L lists $21.90.

Which one looks better on price?

Shelly 1 Gen4 is listed at $24.99, while Sonoff MINI Duo-L is listed at $21.90. Sonoff MINI Duo-L (better spec).

Who should buy Shelly 1 Gen4?

Choose Shelly 1 Gen4 if your priority is rating and safety and that matters more than price.

Who should buy Sonoff MINI Duo-L?

Choose Sonoff MINI Duo-L if your priority is price and relay channels and that matters more than rating.

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