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Plugs · Head to head

Sonoff WiFi Smart Plug S60 vs TP-Link Kasa EP40

Full Smart Plugs comparison in 2026

Data from Amazon and official Sonoff and TP-Link sites.
2026 verdict
Across the 2026 comparison, Sonoff WiFi Smart Plug S60 earns the nod over TP-Link Kasa EP40 on the strength of maximum load power, Overheat/Overload protection, and energy monitoring.
Sonoff WiFi Smart Plug S60
Winner
Sonoff WiFi Smart Plug S60
Buy on Amazon UKCheck price
What pushes it ahead is maximum load power, Overheat/Overload protection, and energy monitoring, and connectivity and integrations keep the advantage from looking narrow. The only strong reason to choose TP-Link Kasa EP40 is if rating, warranty, and weather resistance are more important to you than the overall verdict. That makes Sonoff WiFi Smart Plug S60 the clearer recommendation in 2026.
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FeatureSonoff WiFi Smart Plug S60TP-Link Kasa EP40Winner
Rating4.54.6TP-Link Kasa EP40
Warranty1 year2 yearsTP-Link Kasa EP40
Weather ResistanceNOIP64TP-Link Kasa EP40
Maximum Load Power4000W1875WSonoff WiFi Smart Plug S60
Overheat/Overload ProtectionYESNOSonoff WiFi Smart Plug S60
Energy MonitoringYESNOSonoff WiFi Smart Plug S60
Connectivity2.4 GHz WiFi, Bluetooth2.4 GHz WiFiSonoff WiFi Smart Plug S60
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Samsung SmartThings, Home AssistantSonoff WiFi Smart Plug S60
Plug FormatType FType BDifferent strengths
On/Off ButtonYESYESTie
Zibgee RouterNONOTie

Frequently Asked Questions

Which is better overall: Sonoff WiFi Smart Plug S60 or TP-Link Kasa EP40?

Sonoff WiFi Smart Plug S60 has the stronger overall profile in this comparison, especially for maximum load power, Overheat/Overload protection, and energy monitoring.

What is the biggest difference between Sonoff WiFi Smart Plug S60 and TP-Link Kasa EP40?

Rating is one of the clearest differences: Sonoff WiFi Smart Plug S60 lists 4.5, while TP-Link Kasa EP40 lists 4.6.

Who should buy Sonoff WiFi Smart Plug S60?

Choose Sonoff WiFi Smart Plug S60 if your priority is maximum load power and Overheat/Overload protection and that matters more than rating.

Who should buy TP-Link Kasa EP40?

Choose TP-Link Kasa EP40 if your priority is rating and warranty and that matters more than maximum load power.

Full comparison table

Compare all 36 Plugs side by side

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  • 36 Plugs
  • 31 specs compared
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