Product Library / Plugs & Outlets

Kasa Smart Wi-Fi Plug Slim with Energy Monitoring (EP25)

Compiled by SmartHomeWorkflow Research · Kasa · Plugs & Outlets

⚠ Similar names, different products: TP-Link sells the same plug under two model strings — 'EP25' singly and 'EP25P4' as a four-pack — and they are one product, not two. Worth knowing where this plug lives in TP-Link's house: Kasa and Tapo are separate brands with separate apps and separate product lines, so a Tapo plug's facts never carry across to a Kasa one, and TP-Link's own EP25 URL now redirects from tp-link.com to kasasmart.com.

Compatibility

? Inconclusive means we researched that ecosystem and the evidence doesn’t settle it — the catch says why, and the sources are listed below. It is a statement about the available evidence, never a verdict on the product. A Setup Check researches your exact setup where the official sources don’t answer.

Protocols: WIFI^[1]

What it can do^[4]

Listed capabilities are what we could establish from vendor documentation. An ability missing here is unestablished — not necessarily absent.

Subscription reality^[1]

✓ Works without a subscription: Yes.

Vendor account required: Optional — there is a documented way to use it without one.^[6]

No plan, no tier, no fee named anywhere on the product's own page — scheduling, Away Mode and the energy monitoring are the product rather than a subscription level of it. That is the norm on this shelf and worth stating plainly, since it is emphatically not the norm one category over among the cameras.

Maintenance reality

• Works without the internet: Not established — we have not sourced this yet. It does not mean the product fails without the internet.
• Nothing to maintain — it is a mains plug rated '100 - 120 VAC, 15 A' with a 'Maximum Load' of '15 A, 1.8 KW for 120 V', which is a full 15-amp pass-through rather than the derated 10 or 12 amps some compact plugs carry. The physical design is the quiet selling point: at 2.61 × 1.49 × 1.57 inches TP-Link builds it slim enough to fit 'two plugs on the same outlet', which is exactly the failure most smart plugs have on a duplex receptacle.
• Security updates: Kasa states its security-update commitment for this model as a period rather than a date: ends 3 years after the product's end-of-life date — and TP-Link's published end-of-life list covers Home and Business Networking only, so no end-of-life date exists for this smart-home model and no clock has started (UK-declared — the maker's legal commitment is filed for the United Kingdom). That is a floor measured from a starting point the manufacturer sets — a launch or a purchase — rather than a fixed end date, so it cannot be placed on a calendar here. We record the commitment as the manufacturer states it, in our words, rather than converting it into a date it did not give. This is a published commitment, not a gap in our research.^[3]

The catch

Two things to check before assuming this fits. The Apple question is unresolved on Kasa's own site, and it got messier rather than clearer in September 2026: the browser tab says Homekit and the voice-control section now names Siri, while the actual compatibility line names only Alexa, Google Assistant and SmartThings and the word Apple appears nowhere on the page. That is a contradiction inside one maker's page, so an Apple household should confirm rather than trust any of it. And it is 2.4 GHz only, which is ordinary for a smart plug but still the thing most likely to make setup fail on a network that hides its 2.4 GHz band. No price is published on Kasa's own page, so this profile carries specifications without a figure.

Who it's for

A household that wants two smart plugs on one duplex outlet — the slim body is the actual differentiator here — with real energy monitoring rather than on/off alone. Alexa, Google and SmartThings homes are on solid ground; Apple households should confirm the HomeKit question first.

Sources & method

Numbered sources below back the facts marked with the matching number above. This is a research profile: compiled from manufacturer documentation, certification registries, and published testing — we state facts, not verdicts, and we have not physically tested this unit. How we work →

Compatibility and lifecycle information reflects the last-verified date above and can change without notice (firmware updates, cloud-service changes, discontinuations). It is provided as-is, for information — verify with the manufacturer before purchasing. Spot an error? Tell us and we'll fix it. Full terms: Terms of Service.

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