Next time you shoot video using the Video mode found in the menu strip below the viewfinder, notice the video resolution and frame rate separated by a dot in the top-corner of the screen. If you have an ‌ iPhone 11 or later model, you can change the video resolution and frame rate on the fly from within the Camera pp. If you want to significantly reduce video file size, choose between 720p and 1080p HD at 30 fps. Note that shooting the 4K options take the most space. Select a resolution and frame rate to record video at.

Launch the Settings app on your iOS device.The following steps show you how it's done. If that sounds a lot and you don't have much storage to play with, you can customize the resolution and frame rate of recorded video to reduce the file size. Using these settings, a minute of video takes up 100MB of your storage. Typically, iPhones default to shooting video in 1080p HD at 60 frames per second. However, the higher quality the video format is, the more storage space the video files naturally take up, which may not be good news if you're device is short on capacity. The video recording capabilities of iPhones and iPads get better with each new model that Apple releases, which is great if you want to capture the best-looking video possible.

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