iPhone storage

Delete them from your Recently Deleted folder. When you delete a picture it will go into the Recently Deleted folder for 30 days to give you a chance to recover them. When you delete them from the Recently Deleted folder they will be removed permanently.

Delete or hide photos and videos on iPhone - Apple Support

1. Open the Photos app  on your iPhone.
2. Tap Albums, swipe up, then tap Recently Deleted (below Utilities).

zamar32 Said:

"iPhone storage: So I had 3,000+ photos and videos combined and it took up most of my storage so I deleted a lot down to 200 in my photos and videos and it still shows the same amount of space taken how do I fix it"

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Is Storage Capacity is Incorrect:

Restart your iPhone:

Go Here: Restart your iPhone - Apple Support