DefenderSmart Plug (4 x Pack)

Timer
Scheduling

£20Typical price

Test score

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With the Defender Smart Plug, you don't just get one smart plug in the pack, but four. All these can be controlled via the Defender app, and the plugs have energy monitoring to track power use of a plugged in appliance. How easy this system makes your life is a question of how well the plugs and the companion app have been made. We put it through our tough tests to find out - read our expert review to see our verdict.

pros

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cons

What's included?

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

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KEY TEST RESULTS
Features
Ease of use

Apr 2024Last checked by Which?
Jul 2023First reviewed by Which?
Apr 2021Released

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	62mm
Width	60.2mm
Depth	61.4mm
Weight	82.4g
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	Smart Life - Smart Living
iOS version requirements	iPhone: Requires iOS 11.0 or later, iPad: Requires iPadOS 11.0 or later, iPod touch: Requires iOS 11.0 or later
Android compatible	Yes
Android app name	Smart Life - Smart Living
Android version requirements	Android 6.0 and up
PC compatible	No
Alexa compatible	Yes
Google Assistant compatible	Yes
Siri compatible	No
Account required	Yes

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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

DefenderSmart Plug (4 x Pack)

pros

cons

What's included?

Test results

Specifications

Suggested Alternatives

TCP

BG Electrical

TP-Link

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