Aqara Smart Plug (US) vs Sonoff Wifi Smart Plug S40

Updated February 2026

Data from Amazon and official Aqara and Sonoff sites.

2026 verdict

Taken as a whole in 2026, Aqara Smart Plug (US) wins this matchup. It separates itself most clearly on rating, maximum load power, and integrations, while still looking better on zibgee router. Sonoff Wifi Smart Plug S40 is still relevant if you care most about price and connectivity, but Aqara Smart Plug (US) is the stronger recommendation overall. Overall, Aqara Smart Plug (US) makes more sense for most people.

Winner

Aqara

Aqara Smart Plug (US)

10% OFF

$32.99

$29.59

BUY NOW

Sonoff

Sonoff Wifi Smart Plug S40

20% OFF

$18.99

$15.13

BUY NOW

Feature	Aqara Smart Plug (US)	Sonoff Wifi Smart Plug S40	Winner
Price	$29.59	$15.13	Sonoff Wifi Smart Plug S40
Rating	4.5	4.4	Aqara Smart Plug (US)
Maximum Load Power	1875W	1800W	Aqara Smart Plug (US)
Connectivity	Zigbee	2.4 GHz Wifi, Bluetooth	Sonoff Wifi Smart Plug S40
Integrations	Google Home, Alexa, Apple HomeKit, Home Assistant, IFTTT, Matter	Google Home, Alexa, Samsung SmartThings, Home Assistant, IFTTT	Aqara Smart Plug (US)
Zibgee Router	YES	NO	Aqara Smart Plug (US)
Warranty	1 year	1 year	Tie
Weather Resistance	NO	NO	Tie
Plug Format	Type B	Type B	Tie
Overheat/Overload Protection	YES	YES	Tie
Energy Monitoring	YES	YES	Tie
On/Off Button	YES	YES	Tie

Winner

Aqara

Aqara Smart Plug (US)

10% OFF

$32.99

$29.59

BUY NOW

+ Rating: 4.5
+ Maximum Load Power: 1875W
+ Integrations: Google Home, Alexa, Apple HomeKit, Home Assistant, IFTTT, Matter
- Price: $29.59 vs $15.13
- Connectivity: Zigbee vs 2.4 GHz Wifi, Bluetooth

Sonoff

Sonoff Wifi Smart Plug S40

20% OFF

$18.99

$15.13

BUY NOW

+ Price: $15.13
+ Connectivity: 2.4 GHz Wifi, Bluetooth
- Rating: 4.4 vs 4.5
- Maximum Load Power: 1800W vs 1875W

Frequently Asked Questions (FAQ)

Which is better overall: Aqara Smart Plug (US) or Sonoff Wifi Smart Plug S40?: Aqara Smart Plug (US) has the stronger overall profile in this comparison, especially for rating, maximum load power, and integrations.
What is the biggest difference between Aqara Smart Plug (US) and Sonoff Wifi Smart Plug S40?: Price is one of the clearest differences: Aqara Smart Plug (US) lists $29.59, while Sonoff Wifi Smart Plug S40 lists $15.13.
Which one looks better on price?: Aqara Smart Plug (US) is listed at $29.59, while Sonoff Wifi Smart Plug S40 is listed at $15.13. Sonoff Wifi Smart Plug S40 (better spec).
Who should buy Aqara Smart Plug (US)?: Choose Aqara Smart Plug (US) if your priority is rating and maximum load power 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 connectivity and that matters more than rating.