How do I magnify part of the screen without changing the text size everywhere?
Quick answer
Use the screen magnification feature in Accessibility settings, rather than changing text size. On iPhone, go to Accessibility > Zoom; you can magnify the full screen or use a resizable window. On Android, go to Accessibility > Magnification and choose an available option and shortcut. iPhone uses three-finger gestures; Android supports panning with fingers and pinching to adjust zoom. Some Android steps vary by version. [S1] [S2]
The question, the details, the next step.
I want to enlarge just the part I’m looking at, but keep the normal text size in menus and other apps. What setting am I looking for?
Look for screen magnification in Accessibility settings, not a text-size or display-size control. Magnification zooms the screen view while you use it; it is distinct from changing text size everywhere. On iPhone, the setting is Accessibility > Zoom. On Android, it is Accessibility > Magnification. If you do not see the option, search Settings for “Zoom” or “Magnification.” [S1] [S2]
Both devices offer full-screen magnification. iPhone also offers a resizable window, and Android offers partial-screen magnification. The available options help you choose whether to enlarge the whole view or a portion of it. [S1] [S2]
I have an iPhone. How do I turn Zoom on and move around without getting stuck zoomed in?
Open Settings > Accessibility > Zoom and turn on Zoom. With full-screen magnification, drag with three fingers to pan around the enlarged view. To change the magnification, double-tap with three fingers and drag, or use the Zoom Level slider in Zoom settings. To turn Zoom off, double-tap with three fingers, or use the Accessibility Shortcut if you have set one up. [S1]
For a quick practice, turn Zoom on, move the view to a nearby part of the screen with three fingers, then use the off gesture. The gestures are for iPhone’s Zoom controls; Android uses different instructions. [S1]
What if I use Android, and I only want a portion of the screen enlarged?
Open Settings > Accessibility > Magnification and review the available options. Android’s guide describes both full-screen and partial-screen magnification, as well as a configurable shortcut. Enable the option you want and set up its shortcut by following the instructions on your device. [S2]
While magnified, use your fingers to pan across the content and pinch to adjust the zoom. Use the configured shortcut again to stop magnification. Some steps depend on your Android version, so follow your phone’s prompts rather than assuming every model uses identical controls. [S2]
For example, to inspect a small label, you could enable partial-screen magnification, use the shortcut, pan over the label, adjust the zoom with a pinch, and use the shortcut again when finished. The exact controls may vary by device version. [S2]
Can you give me a quick way to test it and tell whether I changed magnification or text size?
Try the controls on a familiar screen, such as Settings. Turn on magnification, zoom in, and pan; then reduce the zoom or turn the feature off using your device’s controls. If you used the Zoom or Magnification controls, you tested screen magnification. Text-size settings are separate. [S1] [S2]
A quick reminder:
- Find Accessibility > Zoom or Magnification.
- Choose an available screen view and set up the shortcut if offered.
- Turn magnification on and move around using your device’s instructions.
- Use the zoom control or shortcut to reduce or exit magnification.
- Adjust text size separately only if you also want text to appear differently outside magnified use.
If a gesture does not work, check the magnification instructions and shortcut settings on your device. Android steps can depend on version, and the controls are not identical across iPhone and Android. [S1] [S2]
A practical checklist
Open Accessibility settings and find Zoom on iPhone or Magnification on Android.
Choose full-screen or partial/window magnification if offered.
Set up the magnification shortcut and note how to turn it off.
Test panning and zoom adjustment on a familiar screen.
Change text size separately only if you also want different text sizing outside magnification.
A few more useful answers
Does screen magnification change text size everywhere?
Are the zoom gestures the same on iPhone and Android?
Why might the steps on my Android device look different?
Some Android magnification steps depend on the Android version. Follow the magnification prompts and shortcut instructions shown on your device. [S2]
Sources
References used for this guide.
- [S1] Zoom in on the iPhone screen support.apple.com · Checked
- [S2] Use magnification on your screen support.google.com · Checked