Smart plugs

I Test Smart Home Gadgets for a Living — and the Best Plug I've Tried All Year Costs €14.99

Our research team lined up five of the best-known WiFi smart plugs — including a flagship that costs three times as much — and scored them on the controls a normal household actually uses. The winner surprised everyone except our accountant.

Be honest: did you actually switch the hair straightener off this morning — or are you just hoping you did?

That question is the entire reason smart plugs exist. The twenty-minute detour back home to check the iron. The midnight trip downstairs because the lamp is still burning at the wall. Put the socket on your phone, and "did I leave it on?" stops being a small daily dread and becomes a two-second glance at a screen.

The trouble starts at the shelf. I research smart home products for a living, and even I find the smart plug aisle absurd. One plug does the job for €14.99. Another asks €46.74 to switch the very same lamp. And the spec sheets in between read like router manuals: Matter certification, energy dashboards, weatherproof housings, balcony-solar monitoring. Impressive on paper. In our experience, mostly untouched after the first week of ownership.

How We Ran the Comparison

So this year our team did what a careful buyer would do if they had the time. Identical criteria for every plug. Prices checked on the live listings. And zero credit for any feature a normal household won't open twice.

Five things earned points, because five things are what people actually use: switching a socket from the app when you're out of the house, voice control that works with both Alexa and Google Home, automatic timers, setup that doesn't require a hub or an engineering degree, and the honest price of one plug.

The lineup was serious. Shelly's Outdoor Plug S Gen3 at €25.90. The Meross Matter flagship at €46.74. EIGHTREE's 16A workhorse at €29.94. Brennenstuhl's Connect at €17.99. And a direct-sold plug called PureWatt at €14.99.

I'll admit what I expected: that PureWatt would be the polite budget entry that finishes last and makes the big names look worth their premium. That is not what happened.

What PureWatt Gets Right — and What the Expensive Plugs Get Wrong

PureWatt's whole design philosophy fits in one sentence: nail the three controls people touch every day, and skip everything else. After weeks of living with it — lamps, a fan heater, a phone charger — here's what that looks like in practice:

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To be fair and complete: there is no energy-usage dashboard. If you want kilowatt statistics on your phone, the €46.74 flagship keeps that edge. But our research kept turning up the same pattern — the stats screens are the reason people pay extra and the first thing they stop opening after week one. What gets used daily is the app toggle, the voice command and the timer. Those are precisely the three things PureWatt gets right.

Where the Big Names Lost Points

None of the other four is a bad product — that's what makes the value gap so telling. The Shelly is genuinely well engineered, and its IP44 weatherproof housing is exactly what you want on a patio socket. But at €25.90 for one plug, an indoor lamp is paying for armour it will never test, and that chunky outdoor body crowds the socket next to it.

The Meross is a true flagship — Matter, Apple Home, detailed energy metering. It's also €46.74, more than three times PureWatt's price, and none of the extras change the everyday job of switching a device on and off. The EIGHTREE at €29.94 brings 16A headroom and SmartThings support, but it only speaks 2.4GHz WiFi — a common snag on modern mesh networks — and buyers report the app setup can take a few attempts to stick. And the Brennenstuhl at €17.99 has the heritage name, but the lowest user rating in our lineup and a thin review base to back it up. Close on price, behind on proof.

What Owners Keep Saying

PureWatt finished first in our five-plug comparison with a value score of 9.6 out of 10 — our Best Overall Value pick for 2026. The buying public seems to agree: more than 25,000 customers so far, rated Great across over 5,000 verified reviews. What struck me reading through the feedback is how often the same three moments come up — the same ones that won our comparison:

"I checked the straightener from the train platform. Off in one tap. That moment alone paid for the plug."

— Hannah R.

"We're an Echo-in-the-kitchen, Google-in-the-office household. This is the first plug that didn't make us pick a side."

— Marcus D.

"The heater in my study runs for exactly forty-five minutes and shuts itself off. I haven't touched the switch in months."

— Elaine S.

The Six Questions Everyone Asks Before Ordering

Does it really work with both Alexa and Google Home?

Yes — both are supported out of the box, so you can switch connected devices by voice regardless of which assistant your household uses. No hub or bridge required in either case.

Is the setup genuinely simple?

It's three steps: plug PureWatt into the wall, plug your device into PureWatt, connect it to your home WiFi through the free smartphone app. From then on that device answers to your phone, your voice, or the built-in countdown timer — whichever you prefer.

How long does delivery take?

Orders dispatch within 24 hours on working days from an EU warehouse, shipping is free, and every parcel ships with tracking — so delivery in Germany is quick, and you can follow it door to door from the link in your email.

What if it doesn't suit my setup, or I simply change my mind?

Every order is covered by a 30-day money-back guarantee. Run it in your own home for a month, and if it isn't for you, contact customer service within 30 days of delivery for a full refund — no lengthy interrogation. The only thing you commit upfront is the time.

Why is it so much cheaper than the big-⁠brand plugs?

Because it's sold directly online rather than through retail chains, which strips out the distributor and shelf-space markups. You get the everyday features — app control, both assistants, the countdown timer, the safety certifications — without paying for a household logo on the box. And right now the maths is even better: €14.99 is a 50% discount off the regular €29.98, applied automatically at the official checkout.

Is it safe to leave running unattended devices?

PureWatt carries multiple safety certifications and is designed for everyday household use. As with any plug or adapter, use it with appliances in good working order and follow the guidance for whatever you connect — the same rule that applies to the wall socket itself.

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The Price Maths, Because That's the Whole Point

Line the five up one last time. The flagship: €46.74. The mid-market picks: €29.94 and €25.90. The heritage brand: €17.99. And PureWatt — app control from anywhere, Alexa and Google, countdown timer, slim certified body — currently €14.99 instead of the regular €29.98.

It gets better if you think in rooms rather than plugs, which is how most owners end up buying. A two-pack is €19.99 and a three-pack is €24.99 — roughly €8.33 per plug, with multi-pack savings running as deep as 75% off. Bedroom, kitchen, hallway lamp: one order, one setup evening, every "did I leave it on?" answered from your pocket. And thousands of Germans have already made the switch.

One honest caveat, because I'd rather you hear it from me: €14.99 is promotional pricing, not the standard price. The checkout notes the 50% discount is reserved for a limited time, and it can be withdrawn without notice — once it ends, the plug returns to €29.98. Nobody outside the company knows how long it runs, so open the offer page and check the live price before you decide anything.

My Verdict, Reviewer to Reader

Most smart home gear asks you to change how you live. A good smart plug does the opposite — it quietly removes a worry you've carried for years, for less than the cost of the petrol you'd burn turning the car around twice. PureWatt won our comparison because it refuses to charge you for anything else: the controls you'll actually use, in a slim certified body, at the lowest price on the table, with a written 30-day money-back guarantee so you're not taking my word for anything.

If any of this sounds like your morning commute, do what our test ultimately told us to do: order PureWatt from the official website while the 50% discount is still applied, put it on the most worried-about socket in your house, and let the next month settle it.