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Plugs · Head to head

Amazon Smart Plug vs TP-Link Kasa EP40

Full Smart Plugs comparison in 2026

Updated September 2026
Data from Amazon and official TP-Link site.
2026 verdict
For most buyers in 2026, TP-Link Kasa EP40 is the safer pick over Amazon Smart Plug because of price, warranty, and weather resistance.
TP-Link Kasa EP40
Winner
TP-Link Kasa EP40
$17.28$24.9931% OFF
Buy on Amazon USACheck price
It wins the broader comparison through price, warranty, and weather resistance, while integrations and On/Off button help confirm the result. Choose Amazon Smart Plug only if rating matters more to you than the broader advantage from TP-Link Kasa EP40. For most setups, TP-Link Kasa EP40 is the smarter buy.
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FeatureAmazon Smart PlugTP-Link Kasa EP40Winner
Price$24.99$17.28TP-Link Kasa EP40
Rating4.74.6Amazon Smart Plug
Warranty1 year2 yearsTP-Link Kasa EP40
Weather ResistanceNOIP64TP-Link Kasa EP40
IntegrationsAlexaGoogle Home, Alexa, Samsung SmartThings, Home AssistantTP-Link Kasa EP40
On/Off ButtonNOYESTP-Link Kasa EP40
Plug FormatType BType BTie
Overheat/Overload ProtectionNONOTie
Energy MonitoringNONOTie
Connectivity2.4 GHz WiFi2.4 GHz WiFiTie
Zibgee RouterNONOTie

Frequently Asked Questions

Which is better overall: Amazon Smart Plug or TP-Link Kasa EP40?

TP-Link Kasa EP40 has the stronger overall profile in this comparison, especially for price, warranty, and weather resistance.

What is the biggest difference between Amazon Smart Plug and TP-Link Kasa EP40?

Price is one of the clearest differences: Amazon Smart Plug lists $24.99, while TP-Link Kasa EP40 lists $17.28.

Which one looks better on price?

Amazon Smart Plug is listed at $24.99, while TP-Link Kasa EP40 is listed at $17.28. TP-Link Kasa EP40 (better spec).

Who should buy Amazon Smart Plug?

Choose Amazon Smart Plug if your priority is rating and that matters more than price.

Who should buy TP-Link Kasa EP40?

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

Full comparison table

Compare all 36 Plugs side by side

You are looking at two of them. The full table lines up all Plugs in the catalog with the same specs, so you can filter by what you need and sort by price or rating.

  • 36 Plugs
  • 31 specs compared
  • 28 filters
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