A smart plug is the cheapest way to make your home smart. It is a small adapter that sits between your wall socket and any appliance, letting you turn that appliance on and off from your phone, on a schedule, or with your voice. For under $15, you can make a lamp, a fan or a coffee maker smart. Here is how to choose the right one.

The idea is simple. Plug the smart plug into the wall, plug your appliance into the smart plug, and connect the plug to your Wi-Fi. From then on, you can control the appliance from an app, set it to turn on and off at certain times, or control it with Alexa or Google Home. You can also turn it off remotely if you leave the house and realise you left something on.

What to Look For

The first thing to check is compatibility. Most smart plugs work with Alexa and Google Home, but not all work with Apple HomeKit. If you use an iPhone and want to control your plug with Siri, make sure the model you buy supports HomeKit, or you will be disappointed.

Size matters too. Some smart plugs are bulky and block the socket next to them, which is frustrating if you have a double outlet. Look for a compact design that leaves the neighbouring socket free. Some models also offer a slim profile that sits flush against the wall.

Features Worth Paying For

Energy monitoring is the most useful extra feature. A smart plug with energy monitoring tells you exactly how much electricity your appliance is using, which helps you find the devices that are wasting power. It is especially useful for older appliances that run all day, like a fridge or a water heater.

Scheduling and timers are standard on most models, but the best ones let you set sunrise and sunset schedules, so your lights turn on automatically when it gets dark. Away mode, which turns lights on and off randomly while you are on holiday, is a nice security feature too.

Safety and Reliability

Buy a smart plug from a reputable brand with proper safety certification. A smart plug carries the full electrical load of your appliance, and a cheap, uncertified plug is a fire risk. Check the maximum load rating, usually 10 or 16 amps, and never plug in an appliance that exceeds it.

Reliability matters as well. A smart plug that loses its Wi-Fi connection every few days is worse than no smart plug at all. Check the reviews for complaints about connectivity before you buy, and avoid no-name brands with no customer support.

Our Top Picks for 2026

The TP-Link Kasa smart plug is the best all-rounder: reliable, compact, with energy monitoring and excellent app support. The Amazon Smart Plug is the best choice if you use Alexa, because it sets up in seconds and integrates perfectly. For a budget pick, the Meross smart plug offers good features and HomeKit support at a low price.

A smart plug is the perfect first smart home purchase. It is cheap, it is easy to set up, and it makes a real difference to your daily life. Start with one for your bedside lamp, and you will soon want one for every room.

Smart Plug Ideas for Every Room

In the bedroom, a smart plug on your bedside lamp lets you turn the light off from bed, or set it to turn on automatically in the morning. In the living room, a smart plug on a fan or a heater lets you control the temperature from your phone. In the kitchen, a smart plug on a coffee maker means your coffee is ready when you wake up.

In the home office, a smart plug on your desk setup lets you turn everything off with one command when you finish work, which saves energy and stops devices from drawing power overnight. And if you go on holiday, a smart plug on a lamp with away mode makes your home look occupied, which is a simple and effective security measure.