Winner
Updated October 2026
Data from the official Sonoff and TP-Link sites.
2026 verdict
Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug edges out TP-Link Kasa Outdoor Smart Plug KP401 in 2026, led by rating, energy monitoring, and integrations.
It separates itself most clearly on rating, energy monitoring, and integrations, while still looking better on zigbee router. The only strong reason to choose TP-Link Kasa Outdoor Smart Plug KP401 is if price and weather resistance are more important to you than the overall verdict. That is enough to make Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug the better pick for most buyers.
Connectivity
vs
24% OFF
$12.99
$16.99
Connectivity
- Wi-Fi 2.4 GHz
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| Feature | Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug | TP-Link Kasa Outdoor Smart Plug KP401 | Winner |
|---|---|---|---|
| Price | $14.90 | $12.99 | TP-Link Kasa Outdoor Smart Plug KP401 |
| Rating | 4.6 | 4.5 | Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug |
| Weather Resistance | NO | IP64 | TP-Link Kasa Outdoor Smart Plug KP401 |
| Energy Monitoring | YES | NO | Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Google Home, Alexa, Samsung SmartThings, Home Assistant | Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug |
| Zigbee Router | YES | NO | Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug |
| Warranty | 2 years | 2 years | Tie |
| Plug Format | Type B | Type B | Tie |
| Maximum Load Power | 1875W | 1875W | Tie |
| Connectivity | Zigbee | 2.4 GHz WiFi | Tie |
| On/Off Button | YES | YES | Tie |
| Local Control | YES | YES | Tie |
Winner
$14.90
- + Rating: 4.6
- + Energy Monitoring: YES
- + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
- - Price: $14.90 vs $12.99
- - Weather Resistance: NO vs IP64
24% OFF
$12.99
$16.99
- + Price: $12.99
- + Weather Resistance: IP64
- - Rating: 4.5 vs 4.6
- - Energy Monitoring: NO vs YES
Frequently Asked Questions
Which is better overall: Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug or TP-Link Kasa Outdoor Smart Plug KP401?
Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug has the stronger overall profile in this comparison, especially for rating, energy monitoring, and integrations.
What is the biggest difference between Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug and TP-Link Kasa Outdoor Smart Plug KP401?
Price is one of the clearest differences: Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug lists $14.90, while TP-Link Kasa Outdoor Smart Plug KP401 lists $12.99.
Which one looks better on price?
Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug is listed at $14.90, while TP-Link Kasa Outdoor Smart Plug KP401 is listed at $12.99. TP-Link Kasa Outdoor Smart Plug KP401 (better spec).
Who should buy Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug?
Choose Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug if your priority is rating and energy monitoring and that matters more than price.
Who should buy TP-Link Kasa Outdoor Smart Plug KP401?
Choose TP-Link Kasa Outdoor Smart Plug KP401 if your priority is price and weather resistance and that matters more than rating.
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