Can I change the caption text size later without turning captions off?

Yes. Go back to Open the Settings ➔ Tap on System ➔ Tap on Accessibility ➔ Tap on Caption preferences and adjust the text size or style without touching the Use captions switch.

Does enabling system captions turn off automatic subtitles in streaming apps?

No. Streaming apps that generate their own automatic subtitles keep working the same way. The system setting only affects apps that rely on the Android captioning framework instead of a built-in subtitle engine.

Where do I set a fixed caption language instead of relying on app defaults?

Inside Caption preferences, after enabling Use captions, open the language option under Set the Language, Text size or choose a Caption style and pick the language you want captions to default to in supported apps.

OnePlus

OnePlus: Turn On System Captions for Videos and Apps

If videos in some apps show no subtitles at all, or you want a consistent caption style across your OnePlus phone instead of relying on each app's own subtitle toggle, the system-wide captioning option in Accessibility is the setting you need. This feature works independently from automatic app subtitles and lets you pick a fixed language, text size and caption style. Many users overlook it because it hides deep inside the Accessibility menu instead of the display settings.

Updated: 07.08.20265 min6 steps

VersionAndroid 10 · Oxygenos 10

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OnePlus

Enable System-Wide Captions auf OnePlus

OnePlus phones running Android include a system-level captioning feature that is separate from the subtitle toggle inside streaming apps. It applies to apps that support Android's captioning API, so results vary depending on which apps you use.

You find the setting under Open the Settings ➔ Tap on System ➔ Tap on Accessibility ➔ Tap on Caption preferences ➔ Enable or disable Use captions.

Once Use captions is switched on, you can go to Set the Language, Text size or choose a Caption style to define how subtitles look across supported apps. This includes text size, font style and background options for the captions.

Turning this on does not disable an app's own subtitle menu, for example inside a video player or streaming service. Those two systems work in parallel, and an app with its own subtitle engine will usually keep using it instead of the system captions.

If videos in a specific app still show no subtitles after enabling this option, the app likely does not support Android's captioning API and needs its own in-app subtitle setting instead.

Frequently asked questions

Not every app supports Android's captioning API. If an app has its own subtitle menu, for example inside its player controls, that app manages subtitles independently and ignores the system-wide setting under Accessibility ➔ Caption preferences.

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Android 10 · Oxygenos 10

OnePlus 7T Pro 5G McLaren OnePlus 8 OnePlus 8 Pro OnePlus N10 OnePlus Nord OnePlus Nord N100

Accessibility

OnePlus: Turn On System Captions for Videos and Apps

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