How can I check available disk space on iPhone?
Knowing how much storage is available on an iOS device can mean the difference between shooting a video and a disk full error. iOS requires a minimum amount of free space to run properly.
Checking available storage in iOS can be done in a few different ways:
Navigate to Settings -> General -> Usage to list how much space each individual app is using.Navigate to Settings -> General -> About to see a summary of free space and the number of media files on an iOS device (Photos, Videos, Songs, and more).
Jailbreakers can navigate to Cydia -> Manage -> Storage to graph free space on each disk partition on an iOS device.