Meross Smart Wi-Fi Plug vs Sonoff Wifi Smart Plug S40

Updated April 2026

Data from Amazon and official Meross and Sonoff sites.

2026 verdict

For this 2026 head-to-head, Sonoff Wifi Smart Plug S40 has the better all-around case. It separates itself most clearly on price, rating, and overheat/overload protection, while still looking better on energy monitoring and connectivity. Meross Smart Wi-Fi Plug can still be the right pick, but only if its specific feature mix outweighs the wider strengths of Sonoff Wifi Smart Plug S40. That is why the final call still favors Sonoff Wifi Smart Plug S40.

Meross

Meross Smart Wi-Fi Plug

$21.99

BUY NOW

Winner

Sonoff

Sonoff Wifi Smart Plug S40

$18.99

BUY NOW

Feature	Meross Smart Wi-Fi Plug	Sonoff Wifi Smart Plug S40	Winner
Price	$21.99	$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
Energy Monitoring	NO	YES	Sonoff Wifi Smart Plug S40
Connectivity	2.4 GHz Wifi	2.4 GHz Wifi, Bluetooth	Sonoff Wifi Smart Plug S40
Integrations	Google Home, Alexa, Apple HomeKit, Samsung SmartThings	Google Home, Alexa, Samsung SmartThings, Home Assistant, IFTTT	Sonoff Wifi Smart Plug S40
Warranty	1 year	1 year	Tie
Weather Resistance	NO	NO	Tie
Plug Format	Type B	Type B	Tie
On/Off Button	YES	YES	Tie
Zibgee Router	NO	NO	Tie

Meross

Meross Smart Wi-Fi Plug

$21.99

BUY NOW

- Price: $21.99 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

Frequently Asked Questions (FAQ)

Which is better overall: Meross Smart Wi-Fi Plug 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 Meross Smart Wi-Fi Plug and Sonoff Wifi Smart Plug S40?: Price is one of the clearest differences: Meross Smart Wi-Fi Plug lists $21.99, while Sonoff Wifi Smart Plug S40 lists $18.99.
Which one looks better on price?: Meross Smart Wi-Fi Plug is listed at $21.99, while Sonoff Wifi Smart Plug S40 is listed at $18.99. Sonoff Wifi Smart Plug S40 (better spec).
Who should buy Meross Smart Wi-Fi Plug?: Choose Meross Smart Wi-Fi Plug if your priority is its specific strengths 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 the competing advantages.