Kasa Smart KC400 2K indoor security camera mounted on a shelf overlooking a living room

Kasa Smart 2K Indoor Security Camera KC400

Name: Kasa Smart 2K Indoor Security Camera KC400
Brand: PickCompass
Price: 46.18 GBP
Availability: InStock
Rating: 4.4 (2553 reviews)

2,553+ reviews at 4.4 stars • 2K QHD 4MP video • Person + motion + sound detection • Two-way audio • Works with Alexa

4.4/5(2,553 reviews)

£46.18

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✓Pros

✓2K QHD (4MP) — noticeably sharper than 1080p cameras at this price
✓Colour night vision in low light, not just green monochrome
✓Person, motion and sound detection with configurable activity zones
✓Two-way audio via Kasa app
✓Local storage via microSD — no mandatory cloud subscription
✓Works with Alexa, Google Home and IFTTT

✗Cons

✗Requires Kasa app account — does not work without cloud registration
✗No battery option — mains-powered only
✗2.4GHz Wi-Fi only — 5GHz not supported

Full Review

The Kasa KC400 is a 2K indoor security camera from TP-Link's smart home brand, recording at 4-megapixel resolution — sharper than 1080p and sufficient to read text on a parcel or identify a face at five metres. Night vision switches to colour in low light (IR and white light modes) rather than the green-hued monochrome of cheaper sensors. Person, motion and sound detection can be configured independently, with activity zones that limit alerts to specific areas of frame. Two-way audio allows speaking back through the camera via the Kasa app. Local storage via microSD (up to 256GB) reduces dependence on a cloud subscription for recordings. At £46.18 it sits in the mid-tier of indoor cameras — above the budget unbranded alternatives but well below Ring's subscription-dependent ecosystem. Compatibility with Alexa, Google Home and IFTTT makes integration with existing smart home setups straightforward.

Specifications

Resolution	2K QHD (2560 x 1440, 4MP)
Night vision	Colour (IR + white light)
Detection	Person, motion, sound
Audio	Two-way (microphone + speaker)
Storage	microSD up to 256GB + optional cloud
Connectivity	2.4GHz Wi-Fi
Smart home	Alexa, Google Home, IFTTT
Power	Mains (USB)
ASIN	B08ZXPBRBQ

Frequently Asked Questions

Do I need a subscription to use it?

No subscription is required for live view or local microSD recording. Kasa's optional cloud subscription (Kasa Care) adds cloud video history and advanced AI features, but the camera works fully with local storage only.

Will it work on a 5GHz network?

No — the KC400 supports 2.4GHz Wi-Fi only. This is standard for most smart home cameras. Ensure your router broadcasts a 2.4GHz SSID; most routers support both bands.

How does the person detection work?

The camera uses on-device AI to distinguish people from pets and other motion sources. It triggers a person alert only for human shapes, reducing false alerts from tree movement or passing cars.