Updated October 2026
Data from the official Meross and Sonoff sites.
2026 verdict
In this 2026 Sonoff WiFi Smart Plug S40 vs Meross Outdoor Smart Plug comparison, Sonoff WiFi Smart Plug S40 comes out ahead thanks to energy monitoring, connectivity, and integrations.
It builds its lead on energy monitoring, connectivity, and integrations, then backs it up with a stronger showing on its broader overall balance. Meross Outdoor Smart Plug still makes sense if rating and weather resistance are your priority, but most buyers should still lean toward Sonoff WiFi Smart Plug S40. For most setups, Sonoff WiFi Smart Plug S40 is the smarter buy.
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| Feature | Meross Outdoor Smart Plug | Sonoff WiFi Smart Plug S40 | Winner |
|---|---|---|---|
| Rating | 4.4 | 4.2 | Meross Outdoor Smart Plug |
| Weather Resistance | IP44 | NO | Meross Outdoor Smart Plug |
| 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, Home Assistant | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Sonoff WiFi Smart Plug S40 |
| Plug Format | Type B | Type B | Tie |
| Maximum Load Power | 1800W | 1800W | Tie |
| On/Off Button | YES | YES | Tie |
| Zigbee Router | NO | NO | Tie |
| Local Control | YES | YES | Tie |
- + Rating: 4.4
- + Weather Resistance: IP44
- - Energy Monitoring: NO vs YES
- - Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, Bluetooth
Winner
$10.90
- + Energy Monitoring: YES
- + Connectivity: 2.4 GHz WiFi, Bluetooth
- + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
- - Rating: 4.2 vs 4.4
- - Weather Resistance: NO vs IP44
Frequently Asked Questions
Which is better overall: Meross Outdoor Smart Plug or Sonoff WiFi Smart Plug S40?
Sonoff WiFi Smart Plug S40 has the stronger overall profile in this comparison, especially for energy monitoring, connectivity, and integrations.
What is the biggest difference between Meross Outdoor Smart Plug and Sonoff WiFi Smart Plug S40?
Rating is one of the clearest differences: Meross Outdoor Smart Plug lists 4.4, while Sonoff WiFi Smart Plug S40 lists 4.2.
Who should buy Meross Outdoor Smart Plug?
Choose Meross Outdoor Smart Plug if your priority is rating and weather resistance and that matters more than energy monitoring.
Who should buy Sonoff WiFi Smart Plug S40?
Choose Sonoff WiFi Smart Plug S40 if your priority is energy monitoring and connectivity and that matters more than rating.
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- 43 Plugs
- 32 specs compared
- 29 filters
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