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A smart plug is the cheapest way to start a smart home. It is a small adapter that goes between your wall outlet and any ordinary device — a lamp, a fan, a coffee maker — and lets you turn that device on and off from your phone, on a schedule, or with your voice. No rewiring, no electrician, no hub. You can go from unboxing to voice-controlled lights in about five minutes.
What makes smart plugs such a good first smart-home purchase is that they work with the stuff you already own. You do not need to buy smart bulbs, smart switches, or a smart speaker to start. A single plug on a floor lamp teaches you the whole system: app, schedule, voice control. If you like it, add more. If you do not, you are out less than the cost of a pizza.
We picked the plugs below on four criteria: setup that a beginner can finish without frustration, reliable app and voice-assistant support, a clear reason to choose one over the others, and consistently strong real-world reviews.
Our top picks at a glance
| Smart plug | Best for | Approx. price |
|---|---|---|
| TP-Link Tapo P125M | Best overall, Matter support | $15–20 each |
| Amazon Smart Plug | Alexa households, simplest setup | $20–25 |
| TP-Link Kasa EP25 | Energy monitoring | $15–20 each |
| Kasa outdoor plug | Patio, garden, and holiday lights | $20–30 |
| 4-pack value bundle | Outfitting several rooms at once | $30–45 for 4 |
Prices vary by retailer and season — check the linked retailer for the current price.
What to check before buying
Not all smart plugs are the same, and four details matter more than the rest:
- Wi-Fi vs. Zigbee. Most beginner plugs use Wi-Fi and connect straight to your router — no hub needed. Zigbee plugs need a hub (like an Echo with a built-in Zigbee radio or a separate smart-home hub). For your first plug, Wi-Fi is simpler. One catch: almost all Wi-Fi smart plugs need your router’s 2.4 GHz band, not 5 GHz. If your router combines both bands under one name, the plug’s app will walk you through it.
- App quality. You will live in this app, so it matters. TP-Link’s Tapo and Kasa apps and Amazon’s Alexa app are the most polished and best-maintained. Avoid plugs whose apps have a handful of reviews and no recent updates.
- Alexa / Google support. If you have an Echo or a Google Nest speaker, check that the plug works with it. All five picks below support Alexa, and most support Google Assistant as well.
- Energy monitoring. Some plugs track how much electricity the connected device uses. It is useful for spotting energy hogs (an old dehumidifier, a space heater that runs all night), but it costs a little more and you do not need it on every plug.
One safety note: smart plugs are rated for a maximum load, typically around 15 amps / 1,800 watts. Do not use them with space heaters, hair dryers, or other high-heat appliances — those can overload a plug. Lamps, fans, coffee makers, phone chargers, and holiday lights are the sweet spot.
1. TP-Link Tapo P125M — Best overall
The Tapo P125M is our top pick because it supports Matter, the new smart-home standard that lets devices from different brands work together. That matters for a beginner because it means the plug you buy today is less likely to become a dead end if you switch voice assistants or apps later.
Setup is straightforward: plug it in, open the Tapo app, and follow the prompts. It works with Alexa and Google, it has a compact design that does not block the second outlet, and it is one of the most reliable plugs in its price range.
- Best for: A first smart plug you will not outgrow
- Why it earns its place: Matter support, reliable app, compact design
- Price: Around $15–20
2. Amazon Smart Plug — Best for Alexa households
If you already have an Echo speaker, the Amazon Smart Plug is the simplest setup you will find. It connects directly through the Alexa app — no separate app to install, no new account to create. Say “Alexa, turn on the lamp,” and it works.
The trade-off is flexibility: it only works with Alexa, not Google, and it has no energy monitoring. If your home runs on Alexa and you want the path of least resistance, this is the plug to buy.
- Best for: Homes that already use Alexa
- Why it earns its place: The easiest setup in this list — no extra app
- Price: Around $20–25
3. TP-Link Kasa EP25 — Best with energy monitoring
The Kasa EP25 adds energy monitoring to the proven Kasa platform. In the app you can see how much power the connected device is using, set schedules, and get a rough sense of what each device costs to run per month. It is the plug to buy when you want to answer the question “why is my electric bill so high?”
It works with Alexa and Google, and the Kasa app is one of the best in the business. If you do not care about energy monitoring, save a few dollars with the Tapo above. If you do, this is the one.
- Best for: Tracking energy use and cutting waste
- Why it earns its place: Real energy data, excellent app, Alexa + Google
- Price: Around $15–20
4. Kasa outdoor plug — Best for outdoors
A regular smart plug is not rated for rain, dust, or temperature swings. The Kasa outdoor plug is: it is weather-resistant, it has two independently controlled outlets, and it handles patio lights, garden fountains, and holiday decorations. One plug can run your string lights on a sunset schedule and your inflatable decorations on a separate schedule.
Use it with a covered outdoor outlet if you have one, and keep the cord connection off the ground where water pools. It works with Alexa and Google, just like the indoor Kasa plugs.
- Best for: Patio lights, garden, and holiday decorations
- Why it earns its place: Weather-resistant, two separately controlled outlets
- Price: Around $20–30
5. 4-pack value bundle — Best for several rooms
One smart plug is a toy; four is a system. A 4-pack is the cheapest way to outfit a living room lamp, a bedroom lamp, a fan, and a coffee maker at the same time, and the per-plug price is usually much lower than buying singles. Retailers like Target regularly carry multi-packs from the major brands.
Buy the 4-pack once you have tried one plug and know you like the system. Starting with a single plug is still the right first step — it lets you confirm the app and the Wi-Fi setup work in your home before you commit.
- Best for: Outfitting several rooms at once
- Why it earns its place: Lowest cost per plug, one setup session for the whole house
- Price: Around $30–45 for a 4-pack
Setup walkthrough: five minutes, start to finish
- Plug it in. Put the smart plug in the outlet, then plug your lamp or device into the smart plug. Turn the device’s own switch on — the plug controls the power, so the device needs to be in the “on” position.
- Install the app. Download the plug’s app (Tapo, Kasa, or Alexa) and create an account.
- Add the device. In the app, tap “Add device” and pick your plug model. The app will ask for your Wi-Fi password — make sure your phone is on the 2.4 GHz band for this step.
- Name it clearly. Call it “Living room lamp,” not “Plug 1.” Clear names are what make voice control work: “Alexa, turn on the living room lamp” only works if the name matches.
- Test it. Turn it off and on from the app, then try your voice assistant. If voice control works, you are done.
If setup fails, the usual fix is the 2.4 GHz band: temporarily switch your phone to your router’s 2.4 GHz network, or check the router settings for a setting that separates the two bands.
Automations worth trying
Once the plug works, schedules and automations are where the real value is:
- Lights on at sunset. Set your lamp to turn on at sunset and off at bedtime. Your home looks lived-in when you are out, and you never walk into a dark house.
- Coffee maker schedule. Plug in a simple drip coffee maker (the kind with a physical on/off switch) and schedule it for 6:55 a.m. Coffee is ready when you wake up.
- Fan off at night. Run a fan on a schedule so it turns off after you fall asleep instead of running all night.
- Vacation mode. Put a lamp on a randomized schedule while you travel. It is more convincing than a light left on 24 hours a day.
FAQ
Do smart plugs work without Alexa or Google? Yes. Every plug here works from its phone app with no voice assistant at all. Voice control is a convenience, not a requirement.
Do smart plugs save electricity? Indirectly, yes. A plug uses a tiny amount of power itself, but it saves more by turning things off on a schedule — a lamp that used to run all night, a fan that used to run all day. Energy-monitoring plugs like the Kasa EP25 help you find the biggest wastes.
Will a smart plug work with 5 GHz Wi-Fi? Most Wi-Fi smart plugs only work on the 2.4 GHz band. If your router uses one name for both bands, the plug’s app usually handles it. If setup fails, try temporarily connecting your phone to the 2.4 GHz band, or check your router settings.
Bottom line
Start with one TP-Link Tapo P125M on the lamp you use most. If your home runs on Alexa and you want the simplest possible setup, get the Amazon Smart Plug instead. Once you are comfortable, add a 4-pack and a Kasa outdoor plug for the patio — that is a whole-home system for well under $100, and it is the easiest smart-home upgrade you can make.