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Buying guide

Best smart plugs for cutting standby power

Smart plugs are the cheapest way to find and stop the electricity your house uses while nobody is using anything.

Standby, or phantom, load is the trickle drawn by consoles, chargers, TVs, printers and speakers that are technically off. Individually tiny; across a whole house it runs continuously, all year.

A metering plug is worth buying before anything else because it turns guessing into measuring: you see the watts, then you decide whether a schedule or an off switch is worth it.

Last updated 2026-09-15. Savings ranges are estimates based on typical US usage and electricity rates. Your actual result depends on your habits, local rate and how much the device is used — nothing here is a guaranteed saving.

The picks, side by side

Comparison of our picks with pros, cons and who each suits
PickProductWho it's forProsConsPrice
Best overallSmart Plug with Energy MonitoringAnyone hunting phantom loads for the first time
  • Turns guesses into measured data
  • Cheap way to start automating
  • Great for space heaters and TVs
  • One outlet per plug
  • Not for high-draw hardwired appliances
$
Best value multipackSmart Plug 4-Pack (Wi-Fi, voice control)Homes automating several small loads
  • Cheapest way to automate several rooms at once
  • Compact enough to not block the second outlet
  • Simple app setup
  • Check the amp rating before using with heaters
  • No per-outlet metering on every model
$
Best for entertainment and desk clustersSmart Power Strip with Per-Outlet ControlTV walls, consoles and home offices
  • Kills several phantom loads at once
  • Keeps always-on devices separate
  • Tidier than multiple smart plugs
  • Bulkier than a plain strip
  • Cloud dependency on some models
$$
Best for rooms nobody switches offMotion / Occupancy Sensor SwitchGarages, laundries, basements and hallways
  • Cheapest automation that always pays
  • No app or account needed
  • Great in low-traffic rooms
  • Can time out if you sit still
  • Not for rooms needing constant light
$

Best overall

Smart Plug with Energy Monitoring

Measuring is the point. Plug it into a suspect device, read the watts, then decide. The measurement is what makes every later decision honest.

Who it's for
Anyone hunting phantom loads for the first time
Key specs
Monitoring: Watts, kWh, runtime · Scheduling: Timers and away modes

Pros

  • Turns guesses into measured data
  • Cheap way to start automating
  • Great for space heaters and TVs

Cons

  • One outlet per plug
  • Not for high-draw hardwired appliances
Smart plug with energy monitoring in a wall outlet
Monitoring4.5out of 5 editorial score

Smart Plug with Energy Monitoring

Measures what a single appliance actually draws, so you can stop guessing which devices are quietly costing you money.

  • Watts, kWh and runtime logging
  • Timers and away modes
  • Voice assistant support
  • Check amp rating first
Best for
Finding phantom loads
Price range
$
Shop now at AmazonHow to set it up

Affiliate link — as an Amazon Associate we earn from qualifying purchases.

Best value multipack

Smart Plug 4-Pack (Wi-Fi, voice control)

Once you know which devices to schedule, a multipack is the cheapest way to cover them all rather than one at a time.

Who it's for
Homes automating several small loads
Key specs
Quantity: 4-pack · Wireless: 2.4 GHz Wi-Fi

Pros

  • Cheapest way to automate several rooms at once
  • Compact enough to not block the second outlet
  • Simple app setup

Cons

  • Check the amp rating before using with heaters
  • No per-outlet metering on every model
Four compact white smart plugs lined up on a white surface
Monitoring4.2out of 5 editorial score

Smart Plug 4-Pack (Wi-Fi, voice control)

Four compact Wi-Fi plugs so you can schedule lamps, fans, heaters and chargers around the house in one afternoon.

  • Four plugs in one pack
  • 2.4 GHz Wi-Fi, no hub required
  • App schedules and timers
  • Voice assistant control
Best for
Rolling out schedules across several rooms
Price range
$
Shop now at AmazonHow to set it up

Affiliate link — as an Amazon Associate we earn from qualifying purchases.

Best for entertainment and desk clusters

Smart Power Strip with Per-Outlet Control

Per-outlet control means the router stays on while the console, soundbar and monitor go off together — one device instead of five plugs.

Who it's for
TV walls, consoles and home offices
Key specs
Outlets: Typically 3–6 switched · USB: 2–4 charging ports

Pros

  • Kills several phantom loads at once
  • Keeps always-on devices separate
  • Tidier than multiple smart plugs

Cons

  • Bulkier than a plain strip
  • Cloud dependency on some models
White smart power strip with several outlets and USB ports on a desk
Monitoring4.1out of 5 editorial score

Smart Power Strip with Per-Outlet Control

Switches a whole media centre or desk cluster off at once, removing the standby draw of six devices in a single schedule.

  • Individually switched outlets
  • Surge protection
  • USB charging ports
  • Group schedules and scenes
Best for
Media centres and home offices
Price range
$$
Shop now at AmazonHow to set it up

Affiliate link — as an Amazon Associate we earn from qualifying purchases.

Best for rooms nobody switches off

Motion / Occupancy Sensor Switch

Not a plug, but the same idea applied to lighting: it removes the human step that keeps costing money.

Who it's for
Garages, laundries, basements and hallways
Key specs
Modes: Occupancy or vacancy · Timeout: Typically 1–30 minutes

Pros

  • Cheapest automation that always pays
  • No app or account needed
  • Great in low-traffic rooms

Cons

  • Can time out if you sit still
  • Not for rooms needing constant light
White occupancy sensor mounted on the wall of a bright hallway
Controls4.3out of 5 editorial score

Motion / Occupancy Sensor Switch

Replaces a normal wall switch and turns lights off automatically in the rooms nobody remembers to switch off.

  • Auto-off timeout
  • Vacancy (manual-on) mode
  • Adjustable sensitivity
  • No app required
Best for
Hallways, closets, laundry, garages
Price range
$
Shop now at AmazonHow to set it up

Affiliate link — as an Amazon Associate we earn from qualifying purchases.

How we chose

  • Does it measure watts, or only switch?
  • Can it switch on a schedule without the app open?
  • Does it control several devices at once where that matters?
  • Is the price low enough to pay back on ordinary standby loads?

We don't publish invented test data or guaranteed dollar savings. Where numbers appear, the arithmetic is shown so you can run it on your own bill.

Run your own numbers in the calculator

Questions people ask

Do smart plugs use electricity themselves?
Yes, roughly half a watt to a watt each while idle. That is why they are worth putting on loads that draw meaningfully more than that, and not on a phone charger that draws almost nothing when idle.
How much can I save with smart plugs?
It depends entirely on what you switch off and your rate. The honest method is to meter the device first: watts divided by 1,000, times the hours it would have been idle, times your cents per kWh.
Smart plug or smart power strip?
A plug for one device; a strip when several devices sit together and one of them must stay powered. Strips also cut cable clutter behind a TV.
Will they keep working if the internet drops?
Most keep their local schedule and the physical button. Remote control and voice stop until the connection returns.

Keep reading

Free guide

10 Key Tips to Lower Your Electric Bill

A short, practical PDF you can work through in a weekend. No fluff, no hype — just the changes that move a real electric bill.

  • The 3 changes that cut the most kWh first
  • A room-by-room LED swap checklist
  • How to read your bill and spot the expensive habits
  • Where phantom loads hide — and how to measure them

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