Is a smart plug actually useful?

Yes—a smart plug can be very useful, but only for the right kind of device.

At its core, a smart plug lets you remotely and automatically cut or restore power to a plugged-in appliance. That makes it great for turning ordinary devices into scheduled or app-controlled ones.

Where smart plugs are most useful

• Lights, fans, and holiday decorations: schedule them to turn on and off automatically.
• Hard-to-reach outlets: control an outlet behind furniture or in an awkward spot without crawling behind it.
• Simple routines: some appliances can be automated if they switch back on when power is restored.
• Energy tracking: some smart plugs offer power monitoring in their apps, which can help you see how much electricity a device is using over time.

Important limitation

A smart plug works best when the device:

• has a physical on/off switch, or
• turns back on automatically after losing power.

If a device needs you to press a digital button or select a mode every time power returns, a smart plug usually won’t fully start it up—it can only cut power or restore it.

Safety note

Don’t overload it. Smart plugs have maximum load ratings that vary by model, so check the plug’s label or product specs before using it with higher-draw appliances. Avoid using them with space heaters, portable air conditioners, or other heavy loads unless the plug is specifically rated for that use.

So: yes, smart plugs are genuinely useful—especially for convenience, automation, and power tracking—but they’re not universal replacements for every device.