By clicking a retailer link you consent to third party cookies that track your onward journey. If you make a purchase, Which? will receive an affiliate commission which supports our mission to be the UK's consumer champion.

TP-LinkKasa Smart Wi-fi plug KP115

Timer
Scheduling

£17.99View retailers

Test score

Lowest available prices

Sign up to unlock the full expert review

If you want to keep an eye on the energy consumption of a fridge, cooker or other appliance, the TP-Link Kasa KP115 smart wi-fi plug has an energy monitoring function built in. You can also control the appliance with just a tap on on your smartphone, regardless of where you are in the world. We put this smart through our tough lab tests, so see the full review to see how it fared overall.

pros

Content has been blurred out, please log in to view.

cons

What's included?

What is it?
How easy it is to use?
Is there anything else I should know?
How secure is it?
Should I buy it?

Full Access first month £5, then £10.99 per month, cancel at any time

KEY TEST RESULTS
Features
Ease of use

Apr 2024Last checked by Which?
Sept 2021First reviewed by Which?
Jul 2020Released

The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.

How we test smart plugs

7 May 2024

Features

How we test features

This includes physical features, like number of sockets and physical switches, as well as features like timers, scheduling functions and built-in voice assistants.

Ease of use

How we test ease of use

This covers setting up the device and network, along with how easy to use the app is.

Reliability

How we test reliability

How reliable is the smart plug at following voice commands? Where possible this is measured between Android and iOS, using Alexa, Google Assistant and Siri

Build quality

How we test build quality

This factors in quality of materials, ease of unplugging and plugging in, and whether it can be plugged in next to other bulky plugs.

Energy monitoring

How we test energy monitoring

How good is the energy monitoring function?

General
Height	72mm
Width	50mm
Depth	61mm
Weight	89g
Number of sockets	1
Physical on/off switch	Yes
Fits next to another plug in wall socket	Yes
Fits next to another plug on full extension cord	Yes

Features
Timer	Yes
Scheduling	Yes
Energy monitoring	Yes
Built-in voice control	No
Access device via web	No
Indicator light can be switched off	No

Compatibility
iOS compatible	Yes
iOS app name	Kasa Smart
iOS version requirements	iOS 10.0 or later, iPadOS 10.0 or later, MacOS 11.0 or later with the M1 chip.
Android compatible	Yes
Android app name	Kasa Smart
Android version requirements	Android 5.0 and up
PC compatible	No
Alexa compatible	Yes
Google Assistant compatible	Yes
Siri compatible	Yes
Account required	Yes

Compare retailers

Prices updated daily

Prices are ordered from lowest to highest, irrespective of retailer rating or stock, and exclude any potential delivery costs. We are not able to show every possible retailer and cheaper prices may be available.

Suggested Alternatives

TCP

SMAWISSINWMONITOR Smart Compact Plug

Timer
Scheduling

£15View retailers

Test score

BG Electrical

SMART HOME 13A SMART SOCKET

Timer
Scheduling

£13.49View retailers

Test score

TP-Link

Tapo P105 Mini Smart Wi-fi Plug

Timer
Scheduling

£8.99View retailers

Test score

How to buy the best smart plug
Even the humble plug is going smart. You can make your home easier to run, scare off burglars and even save energy with a smart plug from brands such as TP-Link, Amazon and more.
How we test smart plugs
We test smart plugs more rigorously than other reviewers. Read on to find out how our tests reveal the best and worst smart plugs from all the big brands.

All smart plug advice

TP-LinkKasa Smart Wi-fi plug KP115

Lowest available prices