Are Smart Plugs Worth It in the UK? Everything You Need to Know

by Klaudia Pyc

Jul 19, 2026

Smart Home, Buying Guides, Home & Garden

Are Smart Plugs Worth It in the UK? Everything You Need to Know

For most people, yes — smart plugs are worth it. They are one of the cheapest and easiest ways to start building a smart home, allowing you to control lamps, appliances and chargers from your phone or with voice assistants such as Alexa and Google Home.

However, smart plugs are not magic energy-saving devices. They can help you automate your home, monitor electricity usage and reduce unnecessary standby power, but they will not automatically lower your bills. Smart plugs are most useful when paired with routines and energy monitoring features.

In this guide, we explain how smart plugs work, when they are worth buying and which type of smart plug is best for your home.

Are Smart Plugs Worth It in the UK? Everything You Need to Know

What Is a Smart Plug?

A smart plug is a device that sits between your wall socket and an appliance. It connects to your Wi-Fi network or smart home hub and allows you to switch power on and off remotely.

Most smart plugs can be controlled using an app on your phone, while many also support voice assistants such as:

Amazon Alexa
Google Home
Apple HomeKit
Samsung SmartThings
Tuya Smart
Smart Life

Depending on the model, smart plugs may also include timers, schedules, energy monitoring and automation features.

What Can You Use a Smart Plug For?

Smart plugs work best with appliances that automatically start working as soon as they receive power.

Popular uses include:

Lamps and decorative lighting.
Phone chargers.
Fans and dehumidifiers.
Coffee machines with physical switches.
Aquariums and terrariums.
Christmas lights.
Electric blankets.
Garden lighting.
Air purifiers.

If you are looking for more ideas, our upcoming guide What Can You Use a Smart Plug For? 15 Practical Ideas covers some of the most useful ways to use smart plugs around your home.

Do Smart Plugs Save Money?

Not directly.

A smart plug does not make your TV, fan or heater use less electricity. What it can do is help you identify which devices are consuming power and automate them so that they do not stay on longer than necessary.

Many smart plugs include energy-monitoring features that show:

Current power usage.
Daily electricity consumption.
Monthly energy costs.
Historical usage data.

The real savings come from changing your habits once you understand how much electricity your appliances actually use. Smart plugs can help you spot devices that quietly consume power all day long.

We will cover this in more detail in our guide Can Smart Plugs Save Electricity? Energy Monitoring Explained.

Are Smart Plugs Safe?

Yes, provided that you buy certified products and use them correctly.

Like any electrical accessory, smart plugs have maximum load limits. Before connecting high-power appliances, always check the manufacturer’s specifications.

Some devices should not be connected to a standard smart plug unless the manufacturer explicitly allows it. This may include:

Certain portable heaters.
Air conditioning units.
Washing machines and tumble dryers.
Power tools.
High-powered kitchen appliances.

Using the wrong type of smart plug with appliances that generate heat or draw a large amount of power can create safety risks.

If you are unsure, read our upcoming guide Are Smart Plugs Safe for Heaters, Kettles and High-Power Appliances?.

Smart Plug vs Smart Socket: What Is the Difference?

Although they sound similar, smart plugs and smart sockets are different products.

Feature	Smart Plug	Smart Socket
Installation required	No	Usually yes
Portable	Yes	No
Easy to move	Yes	No
Permanent solution	No	Yes
Best for beginners	Yes	Depends

A smart plug is ideal if you want a simple upgrade without changing your wiring. A smart socket offers a cleaner and more permanent installation.

We compare both options in our guide Smart Plug vs Smart Socket: What Is the Difference?.

Wi-Fi vs Zigbee Smart Plugs

When shopping for smart plugs, you will often see two connection types: Wi-Fi and Zigbee.

Feature	Wi-Fi	Zigbee
Hub required	No	Usually
Easy setup	Yes	Moderate
Best for	Smaller homes	Larger smart homes

Wi-Fi smart plugs connect directly to your router and are usually easier to set up.

Zigbee smart plugs normally require a hub but may be a better option if you plan to build a larger smart home system.

Read our full comparison here: Wi-Fi vs Zigbee Smart Plugs: Which One Should You Choose?.

Can Smart Plugs Work Without Wi-Fi?

The physical plug will continue supplying power if your internet connection goes down.

However, remote control, voice assistants and cloud-based automations may stop working until the connection returns.

Some Zigbee devices can continue to operate locally through their hub, even if your broadband is unavailable.

Should You Buy a Smart Plug or a USB Wall Socket?

If your goal is simply to charge phones and tablets more conveniently, a USB wall socket may be a better choice than a smart plug.

USB sockets provide permanent charging points without taking up plug space.

Read our guide USB Wall Sockets UK: Are They Worth It and How Do They Work? to learn more.

Frequently Asked Questions

Are smart plugs worth buying in the UK?

For most households, yes. Smart plugs are an inexpensive way to automate appliances, schedule devices and monitor electricity usage.

Do smart plugs reduce electricity bills?

Not automatically. They help you monitor and manage energy consumption, but they do not reduce the power used by appliances on their own.

Can smart plugs work with Alexa and Google Home?

Most modern smart plugs support Amazon Alexa and Google Home, although compatibility varies by manufacturer.

Do smart plugs use electricity themselves?

Yes. Like other connected devices, smart plugs consume a small amount of electricity to maintain their network connection.

Can I use a smart plug with a heater?

Only if the manufacturer specifically states that the plug is suitable for that appliance and power rating.

What is the difference between a smart plug and a smart socket?

A smart plug plugs into an existing socket, while a smart socket replaces the wall outlet itself.

Final Thoughts

Smart plugs are worth it if you want a simple and affordable way to start automating your home.

They are easy to install, work with popular smart home platforms and can help you understand how much electricity your devices are using. However, they are not guaranteed money-saving gadgets and should always be used within their rated limits.

If you are building a smart home, a smart plug is often the easiest place to start.