Increase or Decrease Text Size in Android
To increase or decrease text size on an Android phone, open Settings, go to Display (or Accessibility), and adjust the Font size slider. You can also change the Display size slider to resize everything on the screen, not just text. This guide explains both options, how they differ, and what to do when an app ignores your settings.
Where to Find the Text Size Settings
The exact menu names vary slightly by manufacturer (Samsung, Xiaomi, Pixel, etc.), but the path is nearly always the same on stock Android and most custom skins:
- Open the Settings app (the gear icon).
- Tap Display. On some phones, you may need to tap Accessibility first, then Text and display.
- Look for Font size or Font and display size.
- Drag the slider left to decrease, right to increase. A preview at the top shows the change in real time.
On Android 14 and later, the quick settings panel has a Font size toggle that appears when you swipe down twice and tap the pencil icon to edit tiles. This gives you a shortcut without digging through menus.
Font Size vs. Display Size
These two sliders are often confused because they sit next to each other. They do different things:
- Font size only changes the size of text characters. Icons, buttons, and images stay the same size.
- Display size scales everything – text, icons, images, and UI elements – as if you were changing the screen resolution. A larger display size makes everything bigger, but you see less content on screen.
For example, if you set font size to maximum but keep display size at default, a news article will have huge letters but the app’s toolbar icons remain small. If you increase display size instead, the whole interface scales up, which can be helpful for people with low vision but might make some apps look cramped or cut off.
Why Some Apps Ignore Your Text Size Settings
Many apps, especially games and video players, do not follow the system font size. They use their own rendering engine or fixed layouts. This is not a bug on your phone; it is a developer choice. If an app has its own text size setting, look inside the app’s Settings or Display menu. For example, Chrome has a “Text scaling� option under Settings → Accessibility. Other apps like Twitter and Instagram follow system settings, but some third-party readers have their own sliders.
If an app completely ignores both system sliders, you can try the Accessibility option called “Display size� (not font size) – some apps respect that more. Or you can enable “Extra large� under font size, which forces more apps to scale, but not all.
How to Set a Per-App Text Size (Android 14+)
Android 14 introduced per-app font size scaling. This lets you set a different text size for individual apps without changing the global setting. To use it:
- Go to Settings → Display → Font size.
- Tap App font size (or “Per-app font size� on some devices).
- Select the app you want to adjust.
- Drag the slider for that app. The change applies immediately.
This is useful if you want large text in your reading app but normal text in your email app. Not all Android devices have this feature – it depends on the manufacturer’s skin. Samsung’s One UI has a similar per-app option under Settings → Display → Font size and style → App font size.
Common Problems and Fixes
Here are typical issues people run into and how to solve them:
- Text is too large and gets cut off. Some apps do not reflow text when font size is large. Reduce font size slightly, or enable “Auto-fit text� in the app’s settings if available.
- Changing font size does nothing. Make sure you are moving the “Font size� slider, not the “Display size� slider. Also, some apps require a restart to apply the change.
- Icons are too small after increasing font size. Increase “Display size� as well, or use a launcher that lets you adjust icon size.
- Text is too small in a specific app. Use the per-app font size feature (Android 14+), or check if the app has its own text scaling option.
- After a system update, text size reset. Some updates change defaults. Re-adjust the sliders – your settings should save, but occasionally a bug resets them.
What About Bold Text and High-Contrast Text?
Beyond size, Android offers two related accessibility features:
- Bold text – makes all text thicker without changing the size. Found under Settings → Display → Font size and style (or Accessibility → Text and display).
- High-contrast text – adds a dark or light outline behind text to improve readability. This is under Settings → Accessibility → Text and display.
Using bold text can help readability without taking up more screen space. High-contrast text is useful for people with visual impairments, but it can make some apps look unusual.
Frequently Asked Questions
How do I make text bigger on my Android phone?
Go to Settings → Display → Font size and drag the slider to the right. If you want everything bigger, also increase Display size. On Samsung phones, the path is Settings → Display → Font size and style.
Why does my text size keep resetting?
This can happen after a system update, or if you have a “battery saver� mode that changes display scaling. Check if you have “Auto-adjust font size� enabled under Accessibility – some devices have this feature that adapts text size based on context. Disable it if you want a fixed size.
Can I change text size for one app only?
Yes, on Android 14 and later. Go to Settings → Display → Font size → App font size, select the app, and adjust its slider. On older versions, you can only change the global font size, but some apps have their own text settings.
What is the difference between font size and display size?
Font size changes only the text characters. Display size scales the entire user interface – icons, images, buttons, and text. If you want larger text but normal icons, adjust only font size. If you want a zoomed-in interface, adjust display size.
Does increasing text size affect battery life?
No, font size has no measurable effect on battery life. Display size also has minimal impact because the screen resolution is the same – the system just renders elements larger. The only battery drain would come from a brighter screen if you increase brightness to compensate for readability.
How do I reset text size to default?
Go to Settings → Display → Font size and drag the slider to the middle (usually the default). If you changed display size, set it to the middle as well. On some phones, there is a “Reset� button in the same menu.
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