Modern smartphones have evolved to a point where a simple task like turning the power off has become a source of confusion. In 2026, the physical buttons on your device are no longer just dedicated to power; they serve as triggers for AI assistants, emergency SOS signals, and camera shortcuts. If you are holding a device and wondering why long-pressing the side button only brings up a glowing AI circle instead of a power menu, this guide explains the updated logic for every major manufacturer.

The fundamental shift in power button logic

For decades, the standard operation was simple: hold the power button, wait for the menu, and tap shut down. However, as mobile operating systems like iOS and Android integrated more deeply with voice and predictive AI, the real estate of the side button became too valuable to leave as a simple power switch. Most manufacturers have moved the "Power Off" command to a combination of buttons or a software toggle within the system UI. This design shift ensures that users can quickly access digital assistants while preventing accidental shutdowns in pockets or bags.

How to turn this phone off: Apple iPhone (All Models)

Apple led the change in power logic with the removal of the Home button. On modern iPhones, the button on the right side is technically called the "Side Button," not the power button.

For iPhones with Face ID

This category includes the latest iPhone 17 and 18 series, as well as all models from the iPhone X onwards.

  1. The Button Combination: Simultaneously press and hold the Side Button and either the Volume Up or Volume Down button.
  2. The Slide: Continue holding for about two seconds until the "slide to power off" slider appears at the top of the screen.
  3. Action: Swipe the slider to the right. The device will take approximately 30 seconds to fully cycle down.

For iPhones with a Home Button

If you are using an iPhone SE (second or third generation) or an older model like the iPhone 8:

  1. The Side Button: Press and hold the Side Button (located on the right) until the power-off slider appears.
  2. Action: Swipe the slider to power down.

Using the Settings Menu (The No-Button Method)

If your physical buttons are damaged or you prefer a software-based approach, iOS provides a universal method:

  1. Open the Settings app.
  2. Navigate to General.
  3. Scroll to the very bottom and tap Shut Down.
  4. Slide to power off.

How to turn this phone off: Samsung Galaxy Devices

Samsung's One UI has transitioned to a "Side Key" philosophy. By default, holding this key activates Bixby or the Google Gemini assistant. To shut down a Galaxy S24, S25, or S26 series device, use one of the following methods.

Method 1: The Hardware Shortcut

  1. Press and hold the Side Key and the Volume Down button at the same time.
  2. Hold until the Power Menu appears on the screen.
  3. Tap the Power Off icon, then tap it once more to confirm.

Method 2: The Quick Settings Panel

This is often the fastest way if you are already using the phone with one hand.

  1. Swipe down from the top of the screen to open the Notification Shade.
  2. Swipe down a second time to reveal the full Quick Settings grid.
  3. Tap the Power Icon located in the top-right corner (near the Settings gear).
  4. Select Power Off from the menu.

Method 3: Remapping the Side Key

If you want your Samsung phone to act like an old-school device where the button actually controls the power, you can change the settings:

  1. Go to Settings > Advanced features.
  2. Tap on Side key.
  3. Under the "Press and hold" section, change the selection from "Wake Assistant" to Power off menu.

How to turn this phone off: Google Pixel and Stock Android

Google's Pixel devices (Pixel 9, 10, and newer) utilize a specific combination that prevents accidental triggers of the Google Assistant.

The Standard Method

  1. Press and hold the Power Button and Volume Up button simultaneously.
  2. A pop-up menu will appear in the center of the screen.
  3. Select Power Off.

The Software Shortcut

  1. Swipe down twice from the top of your screen to access Quick Settings.
  2. Look for the small Power Icon at the bottom right of the screen.
  3. Tap it and select Power Off.

Troubleshooting: What to do if the screen is unresponsive

There are instances where a phone freezes, and the standard on-screen sliders or buttons do not respond. In these cases, a "Force Restart" or "Hard Shutdown" is required. This does not erase your data, but it does cut the power at a hardware level, which can resolve software loops.

  • For iPhone (8 and later): Press and quickly release Volume Up. Press and quickly release Volume Down. Then, press and hold the Side Button and keep holding it—even after the slider appears—until you see the Apple logo.
  • For Samsung and most Androids: Press and hold the Power/Side Key and the Volume Down button simultaneously for more than 10 seconds. The screen will go black, and the device will either shut off or begin a reboot cycle.
  • For Google Pixel: Press and hold the Power Button for about 30 seconds until the device hard-reboots.

Why you should regularly turn your phone off

In the era of 2026, where devices are rarely ever truly "off," making the effort to power down once or twice a week has measurable benefits for the hardware and the user.

1. RAM Management and Cache Clearing

While modern operating systems are excellent at managing background tasks, small errors in code can lead to "memory leaks." These leaks slowly consume your phone's RAM, leading to sluggish performance and app crashes. A full shutdown flushes the system memory, giving the OS a clean slate upon the next boot.

2. Battery Longevity

Heat is the primary enemy of lithium-ion batteries. While a phone in standby mode consumes very little power, it is still active—searching for cell towers, updating background apps, and managing thermal levels. Turning the phone off completely allows the battery to reach a chemical equilibrium and stay cool, which can marginally extend its total lifespan over several years.

3. Security: The BFU State

In the cybersecurity world, BFU stands for "Before First Unlock." When you turn your phone off and then back on, it enters a high-security state where almost all data is encrypted and inaccessible to external tools until you enter your passcode. Biometrics (Face ID or Fingerprint) will not work. If you are traveling through high-risk areas or are concerned about privacy, keeping the phone in a powered-down state provides a significantly higher layer of data protection than simply locking the screen.

4. Resolving "Ghost" Issues

Electronic devices occasionally suffer from hardware-software desyncs. This might manifest as a non-responsive camera, a flickering screen, or "ghost vibrations" where the phone haptics fire for no reason. A shutdown forces the hardware controllers to re-initialize, which often solves these glitches without needing a factory reset.

The difference between Sleep, Restart, and Power Off

It is important to distinguish between these three states to manage your device effectively.

  • Sleep Mode: This is what happens when you tap the side button once. The screen turns off, but the processor is still running in a low-power state. Notifications still come through, and the battery continues to drain.
  • Restart (Reboot): This process automates the shutdown and immediate power-on. It is the best option for fixing a minor software bug or applying a small update.
  • Power Off: This is a total cessation of electrical activity to most components. This is the preferred state for long-term storage or when you need to be completely disconnected from the digital world.

Handling phones with broken buttons

If your physical buttons have failed, you are not locked out of the power options. Both iOS and Android have deep-seated accessibility features for this exact scenario.

  • On iPhone: Go to Settings > Accessibility > Touch > AssistiveTouch. Turn it on. A floating button will appear on your screen. Tap it, go to Device > More, and you will find the Restart or Power options.
  • On Android: Go to Settings > Accessibility > Accessibility Menu. Enable the shortcut. You can now tap a small icon on your navigation bar or swipe up with two fingers to bring up a large-button menu that includes "Power."

Summary of power methods in 2026

Manufacturer Primary Button Combo Software Path Force Restart Method
Apple iPhone Side + Vol Up/Down Settings > General > Shut Down Vol Up, Vol Down, Hold Side
Samsung Galaxy Side + Vol Down Quick Settings Power Icon Hold Side + Vol Down (10s)
Google Pixel Power + Vol Up Quick Settings > Power Hold Power (30s)
Motorola Power + Vol Up Notification Shade Power Icon Hold Power + Vol Up (15s)

Frequently Asked Questions

Can I turn my phone off using a voice command? In 2026, most AI assistants like Siri and Gemini can assist with the shutdown process, but for security reasons, they usually require a final manual tap on the screen. For example, saying "Hey Google, turn off my phone" will bring up the Power Menu, but it will not execute the shutdown without your physical confirmation to prevent malicious or accidental triggers.

Does turning the phone off delete any data? No. Powering down only affects the volatile memory (RAM). Your photos, messages, apps, and settings are stored on non-volatile flash memory, which remains intact without power. However, ensure any active work (like a draft email or an unsaved photo edit) is closed before shutting down to avoid losing progress in that specific app.

Why does my phone turn back on when I plug it in? Most modern phones, especially iPhones, are designed to automatically power on when they detect a charge. This is a feature intended to ensure the phone is always ready for use. If you want to charge your phone while it is off, you usually have to turn it off after you have connected it to the charger.

Is it better to leave a phone on or turn it off at night? While leaving it on is the norm for most users who use their phone as an alarm clock, turning it off is better for the device. If you need your alarm, many Android phones have a "Scheduled Power On" feature in the settings that will wake the phone up a few minutes before the alarm is set to go off. This gives you the benefits of a fresh system start every morning.

What if my phone keeps vibrating after I turn it off? If the screen is black but you feel a vibration or hear a notification, the device did not actually shut down. It likely entered a "frozen" black-screen state. In this scenario, follow the "Force Restart" instructions mentioned above to reset the hardware controller.

Knowing how to turn this phone off is a fundamental digital literacy skill in an era where hardware simplicity is being replaced by software-driven complexity. Whether you are troubleshooting a glitch, trying to save battery in an emergency, or simply seeking a moment of digital peace, these steps ensure you remain in control of your technology.