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How to find and delete large videos on iPhone

Updated · 3 min read

Open Photos, go to Albums, Media Types, Videos, and look for the longest durations. Swipe up on a video to see its details, including file size on recent iOS versions. Long 4K clips take the most space, so a handful of deletions can free more than thousands of photos.

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Where do I find the biggest videos?

The Videos album lists every video in your library in date order. It does not sort by size, and iOS gives no sort-by-size switch in Photos. So you use duration as a stand-in. A longer clip is almost always a bigger file, and recording settings add to it.

  1. Open Photos, tap Albums and scroll to Media Types.
  2. Tap Videos.
  3. Scan the duration printed on each thumbnail and note the long ones.
  4. Open a long video and swipe up to see its details. On recent iOS versions the panel shows the file size.
  5. Select the clips you no longer need and delete them.

How big is a minute of video?

It depends on resolution and frame rate. The Record Video screen in Settings, Camera shows an estimate for each option next to the setting. As a ballpark, 1080p at 30 frames per second runs to tens of megabytes per minute, and 4K at 60 frames per second to several hundred. You can read the exact estimates for your model on your own phone.

ClipLengthRough size
1080p at 30 fps10 minutesSeveral hundred megabytes
4K at 30 fps10 minutesAbout 2 GB
4K at 60 fps10 minutesAbout 4 GB
Screen recording5 minutesVaries with content, usually moderate

Table values are rough illustrations. Check Settings, Camera, Record Video on your own iPhone.

Which videos are safe to delete?

Start with ones you can describe in a sentence and do not need to see again. Test takes, clips where the subject left the frame, three versions of the same moment, screen recordings of a bug, and clips you already sent to someone and saved elsewhere. Keep videos that capture people and events you cannot reshoot. If you hesitate, trim instead.

Can I trim a long video instead of deleting it?

Yes. Open the video, tap Edit, move the yellow handles to the part you want and tap Done, then choose Save Video to overwrite or Save Video as New Clip to keep both. Trimming a 12-minute clip down to 40 seconds saves almost all of its size. With Save as New Clip, delete the original once you have watched the short version. Trimming is the middle road between keeping all and deleting all.

What about videos stored in Messages?

Videos you sent and received in chats live with the conversation, and they count toward storage even if they never reached your library. Open Settings, General, iPhone Storage, Messages and review the large attachments. Menu names vary a little by iOS version, but the idea holds: delete what you no longer need from the thread, not from Photos.

How can an app help with large videos?

An app can list the biggest clips first and let you decide quickly. Rollmark, an iPhone app in development, has a Pro pile called Large videos. It gathers videos estimated at 50 MB or more, biggest first. iOS does not give the app a real file size, so the estimate comes from duration and the card shows it as "about". A swipe lets go or keeps, and the let-go list is reviewed before iOS asks you to confirm. The free plan allows 150 swipe decisions a day, and the Large videos pile is part of Pro. More on the sort piles page.

What should I do before deleting a big video?

  • Watch the first and last seconds to make sure it is the clip you think it is.
  • Check that you have a copy of anything important, ideally in two places.
  • Remember that iCloud Photos syncs the delete to your other devices.
  • Leave the clip in Recently Deleted for a day before you empty that album.

Will this fix my full storage?

Often more than anything else you can do in Photos. Five long 4K clips of about 2 GB each free 10 GB, which would take roughly 4,000 photos at 2.5 MB each to match. The space returns when the clips leave Recently Deleted. The guide on why storage stays full after deleting explains the timing.

Are slow-motion and cinematic clips bigger?

Often. Slo-mo records at a higher frame rate, such as 120 or 240 frames per second, so each second holds more frames than a normal clip. Cinematic mode stores depth information alongside the video. Both usually take more space per second than a standard clip of the same resolution. A short slo-mo take is rarely a problem. A long one is.

How do I keep a big video without keeping it on the phone?

Copy it to a place you control before deleting it from the phone: a computer, an external drive, or iCloud storage if you have room. Import it, open the copy and watch a minute from the middle, since a failed transfer can leave a file that opens and then stops. Only then delete the original on the phone. The guide to backing up iPhone photos before deleting lists the options.

What does Optimize iPhone Storage do to videos?

With iCloud Photos and Optimize iPhone Storage on, iOS can replace full-size originals with smaller versions on the phone when space runs low. Videos that sit in iCloud still count toward your iCloud plan. The phone version may shrink, but the original remains in the cloud until you delete it.

Frequently asked questions

Can I sort videos by size on iPhone?

Photos does not offer a sort by size. Use the Videos album, watch the duration on each thumbnail and check details for the longest clips.

Where do I see a video's file size?

Open the video and swipe up. On recent iOS versions the info panel includes the file size.

Does trimming reduce file size?

Yes. A clip trimmed to a short part is smaller. Use Save Video as New Clip if you want to keep the original until you have checked the result.

Are screen recordings large?

They can be. Long recordings of a moving screen add up, so check the Videos album for them too.

Do deleted videos free space immediately?

No. They go to Recently Deleted for 30 days first, so empty that album if you need the space now.

Keep exploring

One month at a time, one photo to remember it

  • Swipe right to keep, left to let go, up to mark
  • iOS confirms every delete and keeps photos 30 days
  • Photos stay on your iPhone

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