Your phone says storage is full. What to actually delete.

The phone refuses to take photos, will not update, and keeps showing a message about storage. It nearly always happens at the worst moment.

Here is what is actually taking the space, and what is safe to remove.

First, do not panic-delete photos

The instinct is to start deleting photographs, which is the one thing you will genuinely regret.

Before deleting anything, get the photos off the phone. Once they are safely somewhere else you can remove them from the phone freely, and the problem is solved permanently rather than for a fortnight.

The photo backup guide covers this properly, but briefly: turn on iCloud Photos on an iPhone or Google Photos backup on Android, let it finish, and then use the “free up space” option that removes the local copies of things already backed up.

That one step frequently recovers most of the storage on its own.

What is actually using the space

Check before deleting. Guessing wastes effort.

iPhone: Settings, General, iPhone Storage. Wait a moment for it to calculate, then you get a list sorted by size with recommendations at the top.

Android: Settings, Storage, then Free up space or Manage storage.

The list is almost always the same story, and it is rarely what people expect.

The usual culprits

Videos

Far and away the biggest. A minute of 4K video is roughly 350MB. Ten minutes of your grandchild’s concert is 3.5GB, which is more than a thousand photographs.

Get videos backed up first, then remove them from the phone. Also consider dropping the recording quality in the camera settings from 4K to 1080p, which most people cannot tell apart on a phone screen and which uses a quarter of the space.

Messages, and their attachments

This is the one that surprises everybody. Years of photos and videos sent in messages sit in the messaging app permanently, and they are usually duplicates of things you already have.

iPhone: Settings, Messages, Keep Messages, and change from Forever to 1 Year. It will offer to delete older ones. This alone often recovers several gigabytes.

WhatsApp is frequently the single largest app on a phone because it saves every image from every group chat. In WhatsApp: Settings, Storage and data, Manage storage. It shows the largest items and the most-forwarded ones, and it is usually safe to clear a great deal.

Turn off automatic saving of received media in WhatsApp settings, so the family group’s forwarded pictures stop filling your phone.

Apps you do not use

Sort the storage list by size and look at what is there. Games and social media apps are commonly 1GB or more each.

iPhone has “Offload App”, which removes the app but keeps its data, so reinstalling later restores everything. Useful for something you use twice a year.

Turn on Offload Unused Apps in Settings, App Store, and it does this automatically.

Downloads and podcasts

Podcast apps download episodes and often never delete them. Netflix and similar apps store downloaded shows you finished watching months ago. Both are easy to forget and frequently several gigabytes.

Check the settings in each app for automatic cleanup.

The deleted photos folder

Deleting photos does not immediately free the space. They sit in a Recently Deleted folder for 30 days.

iPhone: Photos, Albums, Recently Deleted, then Delete All. Android: Google Photos, Library, Bin.

People often delete a hundred photos, see no change, and conclude it did not work.

The order to do it in

1. Back up photos and videos properly, and wait for it to finish
2. Empty the Recently Deleted folder
3. Clear WhatsApp and Messages attachments
4. Delete or offload apps you do not use
5. Remove downloaded podcasts and videos
6. Only then consider deleting photos, and only ones already backed up

Stopping it recurring

Turn on automatic photo backup and leave it on. This is the whole solution for most people. The phone stops being the only place your photographs exist, which fixes both the storage problem and the much worse problem of losing them entirely.

Pay for the storage if you need it. Apple and Google both offer a small monthly amount for considerably more space, with family plans shared across everybody. People spend a remarkable amount of effort avoiding a charge of a few dollars a month and then lose photographs.

Set messages to delete after a year.

Drop video recording to 1080p unless you have a specific reason for 4K.

A note on buying the next phone

When you next replace it, buy more storage than you think you need. It cannot be added later on most phones, and the upgrade at purchase is far cheaper than the years of managing a full device.

128GB is a workable minimum now. 256GB is comfortable if you take a lot of photos or video.

If it is all a bit much

Getting years of photos off a full phone, safely, without losing anything, and then setting it up so it never happens again, is one of the most common single sessions I do.

It is usually about an hour and people are visibly relieved afterwards, mostly because the photographs are finally somewhere safe. Get in touch if you would like a hand.