Dark mode on the Samsung Galaxy A25 is in Settings under Display

Open Settings on your phone. Scroll down and tap Display. Look for the option called Dark mode or Light mode — the exact name depends on which Android version your A25 is running. Tap the toggle to turn it on or off. The change takes effect when ready across most apps and the system interface.

If you do not see a Dark mode option in Display, your phone may be set to an older Android version. Scroll down in the Display menu to check for Screen mode or Vision booster instead — these older names refer to the same feature on earlier software versions.

Key Takeaways

  • Dark mode is toggled on and off through Settings > Display > Dark mode on most Samsung A25 phones.
  • You can schedule dark mode to turn on and off automatically at sunset and sunrise, or at a time you choose.
  • Dark mode affects the system interface, Settings, and most built-in Samsung apps, but some third-party apps may not support it.
  • Turning on dark mode can reduce battery drain on phones with AMOLED screens, though the A25 uses an IPS LCD display where the savings are minimal.

Schedule dark mode to turn on automatically

Instead of toggling dark mode manually each day, you can set it to switch automatically. Open Settings, tap Display, then tap Dark mode. Look for an option labeled Turn on as scheduled or Scheduled.

Tap that option and choose between two scheduling methods. Sunset to sunrise uses your phone's location to turn dark mode on when the sun sets in your area and off when it rises. Custom schedule lets you pick exact times — for example, 9 p.m. to 7 a.m. Select whichever fits your routine, and the phone will switch modes without you having to do anything.

What dark mode affects and does not affect

Dark mode changes the background color of Settings, the home screen, notifications, and most built-in Samsung apps like Messages, Phone, and Contacts. The system interface — buttons, text, and menus — also switches to a dark background with light text.

Not every app respects your dark mode setting. Third-party apps like Instagram, TikTok, or Gmail have their own dark mode toggles inside the app itself, separate from your phone's system setting. If an app does not have its own dark mode option and does not follow your phone's dark mode setting, you will see the app in light mode even when your phone is set to dark.

Why dark mode might not save much battery on the A25

Dark mode can reduce battery drain on phones with AMOLED screens because those screens turn off pixels that display black, using less power. The Samsung Galaxy A25 uses an IPS LCD screen, which keeps the backlight on at full brightness whether the display is dark or light. For this reason, dark mode on the A25 saves very little battery.

If you use dark mode on your A25, choose it because you prefer how it looks or because it is easier on your eyes in low light, not because you expect a meaningful battery improvement. If battery life is your main concern, reducing screen brightness or lowering the refresh rate will make a bigger difference.

Turn off dark mode for specific apps

Some apps let you override your phone's dark mode setting and stay in light mode. Open the app, go to its Settings or Preferences (usually found by tapping a menu icon or your profile picture), and look for a Theme, Appearance, or Display option. If the app offers a choice between Light, Dark, or System Default, select Light to keep that app in light mode even when your phone is set to dark.

Not all apps have this option. If an app does not let you choose a theme, it will follow whatever your phone's dark mode setting is.

Troubleshooting dark mode problems

If dark mode is turned on but your phone still looks mostly light, check whether you have Light mode toggled on instead. On some Android versions, Light mode and Dark mode are separate toggles, and having Light mode on overrides dark mode. Go to Settings > Display and make sure only Dark mode is toggled on, not Light mode.

If the Display menu does not show a dark mode option at all, your phone may need a software update. Go to Settings > About phone > Software update and check for updates. After updating, the dark mode option should appear. If it still does not, your phone's Android version may be too old to support dark mode, though this is unlikely on a Galaxy A25.

Frequently Asked Questions

Does dark mode drain battery faster on the Samsung A25?

No. The Galaxy A25 uses an IPS LCD screen, which uses the same amount of power whether displaying dark or light colors. Dark mode will not noticeably improve or worsen battery life on this phone. If you want to save battery, reduce screen brightness or lower the refresh rate instead.

Can I use dark mode in only some apps?

Yes, if the app has its own theme settings. Open the app, find its Settings or Appearance menu, and choose Light mode for that app only. Your phone's system dark mode setting will not override the app's choice. Apps without their own theme option will follow your phone's dark mode setting.

Will dark mode turn off automatically if I restart my phone?

No. Dark mode stays on until you turn it off manually or until your scheduled time arrives. If you set dark mode to turn on at sunset and off at sunrise, restarting your phone will not change that schedule.

What if an app looks wrong in dark mode?

Some apps are not designed well for dark mode and may have text that is hard to read or buttons that are hard to see. If this happens, turn off dark mode for that specific app in its settings, or turn off dark mode system-wide. Contact the app's developer if the problem persists.