An iPhone outline with a question mark on the screen

If you’re buying or selling a used iPhone, it’s helpful to identify how much storage capacity it has. Luckily, it’s easy to find out how much data your iPhone can hold in Settings. Here’s how.

First, open the Settings app on your iPhone by tapping the gear icon.

In Settings, tap “General.”

In Settings on iPhone or iPad, tap "General."

In General settings, select “About.”

In General settings, tap "About."

In About, scroll down and locate the entry labeled “Capacity.” Beside it, you’ll see your iPhone’s maximum storage capacity listed. For example, you’ll see “64 GB” for a 64 GB model or “128 GB” for an iPhone that can store 128 GB of data.

In "About" in iPhone Settings, you'll see capacity listed.

And that’s it. If that’s all you needed to know, feel free to leave Settings.

If you’d like more detail on how your storage is being used, tap “General” in the upper left corner of the screen to go back one menu, and then select “iPhone Storage.”

In General settings, select "iPhone Storage."

Under iPhone Storage, you’ll see the capacity of the iPhone listed in a phrase such as “17.1 GB of 128 GB Used.” You’ll also see a breakdown of how that storage space is being utilized.

In iPhone Storage, you'll see the capacity listed beside "Used."

In that menu, you can review which apps take up the most space and even delete them if necessary. Good luck!

RELATED: How to Check Available Storage on an iPhone or iPad

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Benj Edwards is a former Associate Editor for How-To Geek. Now, he is an AI and Machine Learning Reporter for Ars Technica. For over 15 years, he has written about technology and tech history for sites such as The Atlantic, Fast Company, PCMag, PCWorld, Macworld, Ars Technica, and Wired. In 2005, he created Vintage Computing and Gaming, a blog devoted to tech history. He also created The Culture of Tech podcast and regularly contributes to the Retronauts retrogaming podcast.
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