Access Dark Mode Through Settings

Dark mode on your Samsung Galaxy A25 lives in the Display settings menu. Open Settings from your home screen or app drawer, then tap Display. You'll see Dark mode listed near the top of the menu — tap it to turn the feature on or off.

When you tap Dark mode, a toggle switch appears. Slide it to the right to turn dark mode on; slide it left to turn it off. The change takes effect when ready across your phone's system menus, settings screens, and any apps that support dark mode.

Key Takeaways

  • Dark mode is found in Settings > Display > Dark mode, where you toggle it on or off with a single tap.
  • Dark mode changes the background of system screens and compatible apps to dark colors, reducing eye strain in low light.
  • You can schedule dark mode to turn on and off automatically at sunset and sunrise, or at a time you choose.
  • Not all apps respect dark mode settings — some apps have their own separate dark mode toggle inside the app itself.
  • Turning on dark mode may slightly extend battery life on phones with OLED screens, though the difference is usually small.

Schedule Dark Mode to Turn On Automatically

Instead of manually toggling dark mode each day, you can set it to switch on and off on a schedule. In the Display settings menu, tap Dark mode again, then look for Scheduled dark mode or Turn on as scheduled — the exact wording varies by software version.

You'll see two options: Sunset to sunrise (which uses your phone's location to time the switch) or Custom schedule (which lets you pick exact times). Choose the option that fits your routine. If you pick custom times, enter the hour you want dark mode to turn on and the hour you want it to turn off.

Once you set a schedule, dark mode will switch automatically without you having to touch the setting again. You can still manually toggle it on or off at any time, even if a schedule is active.

Turn Dark Mode On for Individual Apps

Some apps don't follow your phone's dark mode setting and have their own toggle instead. Open the app, go to its settings or preferences menu (usually found by tapping a gear icon or three-line menu), and look for a dark mode, night mode, or theme option.

Common apps with their own dark mode controls include Gmail, YouTube, Chrome, and Facebook. The location of this setting varies by app — there's no single place to look — but searching "dark mode" or "theme" in the app's settings menu usually finds it quickly.

Understand What Dark Mode Changes

Dark mode affects the background color of system screens — your settings menus, notifications, lock screen widgets, and the keyboard all shift to dark colors with light text. It also changes any app that's built to respect your phone's dark mode preference.

Dark mode does not change the home screen wallpaper or app icons unless you've set up a custom theme. It also won't affect apps that have their own built-in theme and ignore your system setting. If an app still looks bright after you turn on dark mode, that app has its own separate dark mode control that you need to toggle inside the app itself.

Check Your Software Version if Dark Mode Isn't Working

Dark mode has been a standard feature on Samsung phones for several years, so it should be available on your Galaxy A25. If you don't see the Dark mode option in your Display settings, your phone may need a software update.

Go to Settings > About phone > Software update and tap read and install if an update is available. After your phone restarts, return to Settings > Display and look for Dark mode again. If it's still missing after an update, restart your phone by holding the power button and selecting Restart.

Adjust Dark Mode Brightness if Text Is Hard to Read

Dark mode on Samsung phones uses a pure black or very dark gray background. If the contrast feels too harsh or text is difficult to read, you can soften it by adjusting your screen brightness. Open Settings > Display > Brightness and slide the brightness control down slightly — this dims the light text against the dark background without turning off dark mode.

You can also try enabling Adaptive brightness in the Display menu, which automatically adjusts brightness based on your surroundings. This often makes dark mode more comfortable to use in different lighting conditions without requiring manual adjustment.

Frequently Asked Questions

Does dark mode save battery on the Samsung Galaxy A25?

Dark mode may save a small amount of battery on phones with OLED screens because dark pixels use less power than bright ones. The Galaxy A25 has an AMOLED screen, so dark mode does provide some battery savings, but the difference is usually only a few percent under normal use. It's more noticeable if you use your phone heavily throughout the day.

Why do some apps still look bright when I turn on dark mode?

Apps that don't follow your system dark mode setting have their own theme controls. Open the app, find its settings menu, and look for a dark mode, night mode, or theme option. Some older apps don't support dark mode at all and will always appear bright regardless of your phone's setting.

Can I use dark mode on my lock screen?

Dark mode affects lock screen widgets and notifications, but your lock screen wallpaper stays the same. If you want a darker lock screen appearance, you can change your wallpaper to a dark image through Settings > Wallpaper > Lock screen.

What's the difference between dark mode and the blue light filter?

Dark mode changes the background color of your screen to reduce brightness overall. The blue light filter (called Eye comfort shield on Samsung phones) reduces blue light wavelengths to reduce eye strain. You can use both at the same time — they work independently of each other.

Will dark mode work if I'm using a custom theme?

It depends on the theme. Some custom themes override dark mode, while others work alongside it. If you've installed a custom theme and dark mode isn't working, try switching back to the default Samsung theme through Settings > Themes, then turn dark mode back on.