iPhone storage full of videos? Free up space safely

The short answer

If your iPhone storage is full because of videos, you can free space in three ways. You can delete the clips you no longer need, turn on iCloud’s Optimize iPhone Storage, or compress the large clips you want to keep. Only deleting removes the video itself, and even then it waits 30 days in Recently Deleted. Start in Settings, where iPhone Storage shows what is using the space. Then find your largest videos in Photos.

Compressing is the option that keeps the memory. With Emptie, a 5-minute 4K Dolby Vision video went from 2.18 GB to 323 MB, a saving of 85%, with no visible loss on the phone’s screen.

Key Takeaways

• Check Settings > General > iPhone Storage first. It shows what uses the space and any recommendations.
• As far as Apple’s Photos documentation shows, Photos does not sort videos by file size. Look at length and resolution instead.
• Optimize iPhone Storage frees space on the iPhone, but full-size copies stay in iCloud, so your iCloud use does not drop.
• Compressing a long 4K clip can cut it by about 85%. One 2.18 GB video became 323 MB.
• Deleted videos stay in Recently Deleted for 30 days, so the space may not come back at once.

Why videos fill an iPhone so fast

A 4K video at 60 frames per second stores a great deal of detail in every second. One 5-minute 4K Dolby Vision clip was 2.18 GB, which is about 436 MB a minute. Your clips will differ with their resolution, frame rate and how they were recorded, but the rate gives a useful rough guide.

Length	Approximate size at 436 MB a minute
1 minute	about 0.44 GB
5 minutes	about 2.18 GB
10 minutes	about 4.4 GB
20 minutes	about 8.7 GB

Ten clips of 10 minutes each would take about 44 GB. That is how a handful of long 4K recordings can take up a large part of a phone. For a wider look at the numbers, see how much storage iPhone video takes.

Step 1: Check what uses your storage

Open Settings, tap General, then tap iPhone Storage. Apple’s guide says the screen shows a list of apps with their storage use, along with recommendations. Tap Show All to see every recommendation for your device, and tap a recommendation to see what it would change before you turn it on (Apple Support, How to check the storage on your iPhone and iPad).

If Photos is near the top of that list, the videos in your library are the likely cause, and the rest of this guide is about them.

Recommendations depend on your iOS version, your device and your iCloud settings, so the list on your phone may not match what you read here. Some recommendations delete content, while others only change where it is kept. Read each one before you enable it.

Apple’s page also says that when a device runs low, iOS clears space by removing items that can be downloaded again or aren’t needed, such as unused apps and temporary files. The list doesn’t mention your own videos, so you still need to decide about them yourself.

Step 2: Find your largest videos in Photos

Open Photos and look for the Media Types section, which lists Videos. Menu names change between iOS versions. On some versions the section sits under Collections, and on older ones under Albums.

Photos does not sort videos by file size, at least not in any option that Apple’s documentation describes. So you find the large clips by length and resolution. Start with the longest clips, and check whether each one was shot in 4K at 60 frames per second. Those are the ones that take the most space per minute.

Keep a short list as you go, with each clip’s length and resolution. You will compare those numbers again when you decide what to do with each one.

Some clips may exist only in iCloud. They take iCloud space rather than phone space, and Emptie’s first release skips them, so decide about those separately.

Step 3: Decide what happens to each video

Not every large video needs the same answer. Use this table to choose for each one.

Option	Frees space on the iPhone	Keeps the video	Trade-off
Delete	Yes, once Recently Deleted is emptied	No	Gone for good after 30 days
Optimize iPhone Storage	Yes, on this iPhone	Yes, the full copy stays in iCloud	Uses iCloud space, and a full copy needs a connection to download
Compress	Yes	Yes, as a smaller copy	Some loss of detail depending on your settings, and time to encode

Delete is the right choice for a clip you have no reason to keep. The other two options keep the footage. A practical rule is to delete the clips you no longer watch, compress the ones you want to keep but cannot store at full size, and leave the rest alone.

What deleting does, and when the space comes back

Apple’s page on recovering deleted photos and videos says they stay in the Recently Deleted album for 30 days, after which they are removed for good. You can empty that album sooner. Open Photos, swipe up, and tap Recently Deleted in the Utilities section. Tap View Album, unlock it with Face ID or Touch ID, select the items and tap Recover or delete them (Apple Support, How to recover deleted photos on your iPhone, iPad, Mac, or Apple Vision Pro).

Apple’s page does not say whether deleting a video frees its space straight away. Our reading is that the space comes back once Recently Deleted is emptied, but we have not confirmed that on Apple’s page. Check iPhone Storage after you empty the album to see the change on your own phone. The iPhone storage not freed after deleting videos guide covers the same question in more detail.

Step 4: Decide whether to turn on Optimize iPhone Storage

Apple’s article on managing photo and video storage says that with Optimize iPhone Storage, “full-resolution photos and videos are stored in iCloud,” while “space-saving copies are stored on your device” when needed (Apple Support, Manage your photo and video storage). To turn it on in iOS 26, open Settings, tap your name, tap iCloud, then tap Photos, and make sure Sync this iPhone is on. In iOS 27 and later, tap iPhone Storage and check that Optimize iPhone Storage is turned on.

This option frees space on the phone, but it has costs you should know about before you turn it on.

• iCloud use does not drop. The full-size files still live in iCloud, so your iCloud plan fills up as it did before.
• Full copies need a connection. Opening a video that is only stored in iCloud means downloading it first, which needs Wi-Fi or cellular data.
• Some videos can’t be compressed by Emptie. A video that is stored only in iCloud is a Cloud-only Video. Emptie’s first release skips them, so the iCloud copies stay as they are.
• Deletions can spread. Apple’s wording on deleting from a device with iCloud Photos on, as quoted in Apple Community threads, is that the deletion also removes the photo from iCloud and from other devices. We could not read that page in full, so check it on your own setup before you delete a large batch.

Step 5: Compress the large videos you want to keep

Compression makes a new, smaller copy of a video. The length stays the same, and the picture is re-encoded at a lower resolution, frame rate or bitrate, depending on the settings you choose. The result depends on how far you reduce it. For a closer look at the trade-off, read whether compressing video loses quality.

1080p HEVC at 8 Mb/s turned that 5-minute 4K Dolby Vision clip from 2.18 GB into 323 MB, with no visible loss on the phone’s own screen. A bigger screen may show what the phone’s screen hides, so check the result on the device you will watch it on.

Two built-in routes can make smaller copies. You can export a 1080p copy in iMovie, or run an Encode Media shortcut in the Shortcuts app. Both leave the original in place until you delete it yourself. Our step-by-step guide, how to compress video on iPhone, walks through both.

Emptie does this for a whole selection in one Batch. It is not out yet, so these steps describe how the first version is designed to work:

• It works on the phone. Nothing is uploaded, and the app has no account.
• It keeps the date recorded, the location, Favorite, Hidden status and your own albums on the compressed copy. Memories, face tags and Shared Album links can’t be carried over, and Emptie tells you that before the first replacement.
• It deletes an original only after its compressed copy is saved and checked, and only after you confirm in Review. The original then goes to Recently Deleted for 30 days.
• It leaves a video alone if compressing would save less than about 20%.

Compressing a large library takes time and warms the phone. Before a Batch starts, Emptie shows the estimated total size and time. It is designed to pause when the phone gets too hot and to resume when it cools, and that threshold is still being tuned on real phones.

Emptie is free, with no subscription. If it helps you, you can support the founder with an optional one-time $2.99 Founding Supporter purchase. If you want a comparison of tools that compress video, see the best video compressor for iPhone.

An order of steps that frees space without losing footage

1. Open Settings, tap General, then tap iPhone Storage. Read the recommendations and the list of apps.
2. In Photos, go to Media Types and open Videos. Note the longest 4K clips.
3. For each large clip, decide: delete it, keep it in iCloud, or compress it.
4. Delete only what you no longer need. Empty Recently Deleted once you are sure.
5. Check iPhone Storage again to see how much space came back.

If you are not sure where to start, begin with the largest clip you already know you no longer watch. One deletion gives a clear result, and the rest of the steps then take less time.

Frequently asked questions

Will freeing up iPhone storage delete my photos?

Not if you choose the right option. Deleting a video removes it, although Recently Deleted keeps it for 30 days. Compressing keeps the video as a smaller file. Optimize iPhone Storage keeps full-size copies in iCloud and smaller ones on the phone.

Why is my iPhone storage still full after I deleted videos?

Apple says deleted photos and videos stay in Recently Deleted for 30 days. Empty that album to remove them sooner. Apple’s page does not say when the space comes back, so check iPhone Storage after you empty it.

Does Optimize iPhone Storage free up space?

It frees space on the iPhone, because smaller copies are kept there when needed. The full-resolution files stay in iCloud, so the space they use in iCloud does not go down.

How do I find my biggest videos in Photos?

As far as Apple’s Photos documentation shows, Photos has no sort by file size. Filter to videos and look at length and resolution. A 5-minute 4K Dolby Vision clip can take about 436 MB per minute, so long 4K clips are the ones to check first.

Should I compress a video or delete it?

Delete a video you no longer need. Compress one you want to keep but cannot store at full size. Compressing makes a smaller copy. With Emptie, the original is removed only after the copy is saved, checked and confirmed in Review.