Shelly Smart Plug (US) vs Sonoff Zigbee Smart Plug S40 Lite comparison

Updated May 2026

Data from Amazon and official Shelly and Sonoff sites.

2026 verdict

In this 2026 Shelly Smart Plug (US) vs Sonoff Zigbee Smart Plug S40 Lite comparison, Shelly Smart Plug (US) comes out ahead thanks to overheat/overload protection, energy monitoring, and connectivity. It separates itself most clearly on overheat/overload protection, energy monitoring, and connectivity, while still looking better on its broader overall balance. Sonoff Zigbee Smart Plug S40 Lite still makes sense if price, integrations, and zibgee router is your priority, but most buyers should still lean toward Shelly Smart Plug (US). Overall, Shelly Smart Plug (US) makes more sense for most people.

Winner

Shelly

Shelly Smart Plug (US)

29% OFF

$22.00

$30.87

Buy on Amazon USA

Sonoff

Sonoff Zigbee Smart Plug S40 Lite

$12.99

Buy on Amazon USA Buy on Aliexpress

Feature	Shelly Smart Plug (US)	Sonoff Zigbee Smart Plug S40 Lite	Winner
Price	$22.00	$12.99	Sonoff Zigbee Smart Plug S40 Lite
Overheat/Overload Protection	YES	NO	Shelly Smart Plug (US)
Energy Monitoring	YES	NO	Shelly Smart Plug (US)
Connectivity	2.4 GHz WiFi, Bluetooth	Zigbee	Shelly Smart Plug (US)
Integrations	Google Home, Alexa, Home Assistant	Google Home, Alexa, Samsung SmartThings, Home Assistant, IFTTT	Sonoff Zigbee Smart Plug S40 Lite
Zibgee Router	NO	YES	Sonoff Zigbee Smart Plug S40 Lite
Rating	4.4	4.4	Tie
Weather Resistance	NO	NO	Tie
Plug Format	Type B	Type B	Tie
Maximum Load Power	1800W	1800W	Tie
On/Off Button	YES	YES	Tie

Winner

Shelly

Shelly Smart Plug (US)

29% OFF

$22.00

$30.87

Buy on Amazon USA

+ Overheat/Overload Protection: YES
+ Energy Monitoring: YES
+ Connectivity: 2.4 GHz WiFi, Bluetooth
- Price: $22.00 vs $12.99
- Integrations: Google Home, Alexa, Home Assistant vs Google Home, Alexa, Samsung SmartThings, Home Assistant, IFTTT

Sonoff

Sonoff Zigbee Smart Plug S40 Lite

$12.99

Buy on Amazon USA Buy on Aliexpress

+ Price: $12.99
+ Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant, IFTTT
+ Zibgee Router: YES
- Overheat/Overload Protection: NO vs YES
- Energy Monitoring: NO vs YES

Frequently Asked Questions

Which is better overall: Shelly Smart Plug (US) or Sonoff Zigbee Smart Plug S40 Lite?

Shelly Smart Plug (US) has the stronger overall profile in this comparison, especially for overheat/overload protection, energy monitoring, and connectivity.

What is the biggest difference between Shelly Smart Plug (US) and Sonoff Zigbee Smart Plug S40 Lite?

Price is one of the clearest differences: Shelly Smart Plug (US) lists $22.00, while Sonoff Zigbee Smart Plug S40 Lite lists $12.99.

Which one looks better on price?

Shelly Smart Plug (US) is listed at $22.00, while Sonoff Zigbee Smart Plug S40 Lite is listed at $12.99. Sonoff Zigbee Smart Plug S40 Lite (better spec).

Who should buy Shelly Smart Plug (US)?

Choose Shelly Smart Plug (US) if your priority is overheat/overload protection and energy monitoring and that matters more than price.

Who should buy Sonoff Zigbee Smart Plug S40 Lite?

Choose Sonoff Zigbee Smart Plug S40 Lite if your priority is price and integrations and that matters more than overheat/overload protection.

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