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

Updated September 2026

Data from Amazon and official Shelly and Sonoff sites.

2026 verdict

Winner

$22.00$30.8729% OFF

Scripting and monitoring against Zigbee mesh building: the Shelly Smart Plug (US) is the more capable smart plug overall, winning on built-in energy monitoring, overheat/overload protection and broader onboard connectivity (Wi-Fi plus a Bluetooth gateway). It works with no hub and exposes an open API that home-lab and Home Assistant users lean on, whereas the Sonoff Zigbee Smart Plug S40 Lite is Zigbee-only and must have a hub to function. Both plugs share a 1800W, 15A Type B rating, so raw capacity is even. The Sonoff Zigbee Smart Plug S40 Lite wins back ground on a lower price, a longer integration list that includes Samsung SmartThings and IFTTT, and its Zigbee router role that repeats mesh signal. Reach for the Shelly Smart Plug (US) when you want energy data and deep automation control; the Sonoff Zigbee Smart Plug S40 Lite is the affordable way to add and extend a Zigbee network.

Winner

Shelly

Shelly Smart Plug (US)

29% OFF

$22.00

$30.87

Buy on Amazon USACheck price

Sonoff

Sonoff Zigbee Smart Plug S40 Lite

$12.99

Buy on Amazon USACheck price

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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, Samsung SmartThings, Home Assistant	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	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 USACheck price

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

Sonoff

Sonoff Zigbee Smart Plug S40 Lite

$12.99

Buy on Amazon USACheck price

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

Frequently Asked Questions

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

The Shelly Smart Plug (US) wins overall, adding energy monitoring, overheat/overload protection and richer connectivity with an open API. The Sonoff Zigbee Smart Plug S40 Lite counters with a lower price, more integrations and a Zigbee router role.

Which one monitors energy usage?

Only the Shelly Smart Plug (US). It provides real-time and historical energy monitoring, which home-lab and Home Assistant users rely on. The Sonoff Zigbee Smart Plug S40 Lite has no energy monitoring.

Do these plugs need a hub?

The Sonoff Zigbee Smart Plug S40 Lite does, since it is Zigbee-only. The Shelly Smart Plug (US) connects over 2.4GHz Wi-Fi and Bluetooth with no hub, and can even act as a Bluetooth gateway.

Does the Sonoff Zigbee Smart Plug S40 Lite support Zigbee mesh extension?

Yes. The Sonoff Zigbee Smart Plug S40 Lite works as a Zigbee router, repeating signal to strengthen the mesh. The Shelly Smart Plug (US) does not support Zigbee, so it cannot serve that role.

Who should buy the Shelly Smart Plug (US)?

Automation-minded buyers who want energy tracking, overload protection and an open API for custom scripting or Home Assistant, in a plug that runs over Wi-Fi and Bluetooth without a hub.

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