Eve Energy (US) vs Sonoff Wifi Smart Plug S40

Updated March 2026

Data from Amazon and official Eve and Sonoff sites.

2026 verdict

Taken as a whole in 2026, Sonoff Wifi Smart Plug S40 wins this matchup. It separates itself most clearly on price, rating, and overheat/overload protection, while still looking better on connectivity. The only strong reason to choose Eve Energy (US) is if integrations is more important to you than the overall verdict. For most setups, Sonoff Wifi Smart Plug S40 is the smarter buy.

Eve

Eve Energy (US)

20% OFF

$43.95

$34.95

BUY NOW

Winner

Sonoff

Sonoff Wifi Smart Plug S40

$18.99

BUY NOW

Feature	Eve Energy (US)	Sonoff Wifi Smart Plug S40	Winner
Price	$34.95	$18.99	Sonoff Wifi Smart Plug S40
Rating	4.2	4.4	Sonoff Wifi Smart Plug S40
Overheat/Overload Protection	NO	YES	Sonoff Wifi Smart Plug S40
Connectivity	Thread Protocol	2.4 GHz Wifi, Bluetooth	Sonoff Wifi Smart Plug S40
Integrations	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	Google Home, Alexa, Samsung SmartThings, Home Assistant, IFTTT	Eve Energy (US)
Warranty	1 year	1 year	Tie
Weather Resistance	NO	NO	Tie
Plug Format	Type B	Type B	Tie
Maximum Load Power	1800W	1800W	Tie
Energy Monitoring	YES	YES	Tie
On/Off Button	YES	YES	Tie
Zibgee Router	NO	NO	Tie

Eve

Eve Energy (US)

20% OFF

$43.95

$34.95

BUY NOW

+ Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
- Price: $34.95 vs $18.99
- Rating: 4.2 vs 4.4

Winner

Sonoff

Sonoff Wifi Smart Plug S40

$18.99

BUY NOW

+ Price: $18.99
+ Rating: 4.4
+ Overheat/Overload Protection: YES
- Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant, IFTTT vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter

Frequently Asked Questions (FAQ)

Which is better overall: Eve Energy (US) or Sonoff Wifi Smart Plug S40?: Sonoff Wifi Smart Plug S40 has the stronger overall profile in this comparison, especially for price, rating, and overheat/overload protection.
What is the biggest difference between Eve Energy (US) and Sonoff Wifi Smart Plug S40?: Price is one of the clearest differences: Eve Energy (US) lists $34.95, while Sonoff Wifi Smart Plug S40 lists $18.99.
Which one looks better on price?: Eve Energy (US) is listed at $34.95, while Sonoff Wifi Smart Plug S40 is listed at $18.99. Sonoff Wifi Smart Plug S40 (better spec).
Who should buy Eve Energy (US)?: Choose Eve Energy (US) if your priority is integrations and that matters more than price.
Who should buy Sonoff Wifi Smart Plug S40?: Choose Sonoff Wifi Smart Plug S40 if your priority is price and rating and that matters more than integrations.