What Is Burst Mode? Definition & Guide
By Jack Smith, iOS Developer at DB Labs · Updated March 8, 2026
Burst Mode is an iPhone camera feature that rapidly captures approximately 10 photos per second while you hold the shutter button. It is designed for action shots and fast-moving subjects, letting you pick the best frame from a rapid sequence. Burst photos can quickly consume storage if not reviewed and trimmed.
How Burst Mode Works
When you trigger Burst Mode, your iPhone fires the shutter at maximum speed, capturing around 10 full-resolution photos every second. The camera continues shooting as long as you hold the trigger, potentially creating dozens or even hundreds of photos in a single burst. Your iPhone uses on-device intelligence to analyze each frame and suggest the best shots based on sharpness, exposure, and whether subjects have their eyes open.
On iPhone 11 and later, the gesture for Burst Mode changed. Instead of holding the shutter button (which now starts video recording), you swipe the shutter button to the left in portrait orientation. You can also assign the volume up button to Burst Mode in Settings > Camera by enabling "Use Volume Up for Burst."
Storage Impact of Burst Photos
Burst photos are one of the most common hidden sources of wasted iPhone storage. Each photo in a burst is a full-resolution image, typically 1 to 3 MB when saved as HEIC. A casual 3-second burst creates about 30 photos, consuming 30 to 90 MB. Users who frequently shoot bursts of children, pets, or sports can accumulate thousands of burst photos without realizing it.
The problem is compounded because burst photos are easy to forget. They appear as a single thumbnail in your camera roll, so you may not notice that one "photo" actually contains 50 or more images. Over time, unreviewed bursts can quietly consume several gigabytes of storage.
How to Review and Clean Up Bursts
To manage burst photos, open the Photos app and go to Albums > Media Types > Bursts. This album shows every burst sequence on your device. Open a burst, tap Select, choose the frames you want to keep, and tap Done. When prompted, select "Keep Only Favorites" to delete the unselected shots.
For a faster cleanup process, a photo management app can help you swipe through burst photos quickly and decide which to keep or discard without opening each burst individually.
When to Use Burst Mode
Burst Mode is ideal for situations where timing is critical:
- Sports and action — Capture the exact moment of a goal, jump, or swing.
- Children and pets — Get a sharp shot when subjects are moving unpredictably.
- Group photos — Increase your chances that everyone has their eyes open.
- Wildlife — Capture fleeting moments in nature.
For everyday photography, keeping Burst Mode off saves significant storage and simplifies your photo library.
Related Terms
- Live Photos — Captures 3 seconds of motion with a single photo
- Smart HDR — Combines multiple exposures for better dynamic range
- HEIC — The efficient image format used for burst photos
Learn More
- How to Bulk Delete Photos on iPhone
- How to Select All Photos and Delete on iPhone
- Monthly iPhone Cleanup Routine
Frequently Asked Questions
How do I take a burst photo on iPhone?
On iPhone 11 and later, swipe the shutter button to the left to take burst photos. On older iPhones, hold down the shutter button. You can also use the volume up button by enabling it in Settings > Camera.
Do burst photos take up a lot of storage?
Yes. Each burst captures 10 full-resolution photos per second. A 3-second burst creates about 30 photos, using 30-90 MB. Forgotten burst photos are one of the most common hidden sources of wasted iPhone storage.
How do I delete unwanted burst photos?
Open the burst in the Photos app, tap "Select," choose the photos you want to keep, then tap "Done." Select "Keep Only Favorites" to delete the unselected shots. Find all bursts in Albums > Media Types > Bursts.
Clean Up Burst Photos Fast
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