Open the storage breakdown and find which category occupies the space. Remove downloaded files or unused apps before deleting personal photos or messages. Confirm that anything important has a usable backup. Storage expansion and cloud options differ by model, so follow the matching notes below.
Differential
Likely causes of “Google Pixel storage is full”, and how to tell them apart
- 1
Six years of photos and video
What separates it Photos and Videos dominate the Storage screen and account for most of the used space
How to confirm Back them up, then switch on Smart Storage so backed-up copies are cleared when space runs low
- 2
App caches and data
What separates it A single app accounts for gigabytes and sits at the top of the Storage screen
How to confirm Clear that app's cache; choose Clear storage only if you want all its data gone
- 3
Downloads and offline media
What separates it Downloaded films and music are large and take up several gigabytes on the phone
How to confirm Delete them from the app that holds them
- 4
128 GB with no card slot
What separates it Space fills again within weeks after a cleanup, since the phone has 128 GB and no card slot
How to confirm Wikipedia says the storage is non-expandable, so move files to a computer or cloud
- 5
Not enough room for updates
What separates it The phone cannot install an app update for lack of space
How to confirm Make room first, then retry the update so it can download and install
Before you touch a setting
Record this first — changing settings destroys the evidence
- Which phone, the Android version and how much storage is free
- The biggest categories and apps under Settings, Storage
- Whether Google Photos has finished backing up
Try in this order
0 of 7 completedOpen Storage
ReversibleOpen Storage, by going to Settings, Storage, and noting the largest categories before deleting anything.
Back up photos
ReversibleLet Google Photos finish its backup before you remove the local copies.
Turn on Smart Storage
ReversibleTurn on Smart Storage, and enable it so that backed up photos and videos are cleared when space runs low.
Use suggestions
ReversiblePick from the apps, photos and videos that Google suggests removing, and review each one before you confirm the deletion.
Clear caches
ReversibleOpen each large app's storage screen and clear its cache, which removes temporary data without deleting your accounts or saved files.
Copy to a computer
ReversiblePlug in a USB-C cable, copy over what you want to keep and delete it from the phone once it opens on the computer.
Restart and recheck
ReversibleRestart and recheck, by restarting, then reopening Storage and confirming that the free figure has risen.
Model-specific
What is true of this model and not of its siblings
- Google Pixel 5 and 4a family storage is full or the device cannot install updates
- A Pixel 5, 4a or 4a (5G) reports full storage more often than newer Pixels because all three have only 128 GB of non-expandable UFS 2.1 storage, per Wikipedia, and years of photos have piled up. Google's own article separates storage (files) from memory (running apps), so read the Storage screen first. Then use Google's tools: turn on Smart Storage, back up photos to Google Photos and delete the local copies, clear caches and remove unused apps. If the phone still says it is full, copy files to a computer.
- Storage by model
- Pixel 5, 4a and 4a (5G): 128 GB UFS 2.1, non-expandable, per Wikipedia. The Pixel 5 has 8 GB of RAM.
- What to move first
- Photos and video, then offline downloads, then app data, as Google's article orders them.
- Part numbers
- Google identifies repairs by device model, shown under Settings, About phone; storage is not a replaceable part, so there is no owner part number to look up.
- Tools and supplies
- A computer with a USB-C cable, or a Google account that has spare space. A soft cloth for wiping the phone as you work.
- Repair cost
- Storage is not a repair item. iFixit's table lists battery replacement at $99.99 (4a) and $129.99 (Pixel 5), but a full-storage fault is solved by clearing files.
- Other models this page answers
- These steps also fit the Pixel 4a, Pixel 4a (5G).
Stop boundary
When this stops being a self-service repair
- !If System storage stays large after a restart and clearing caches, ask Google or a repairer before deleting anything else
- !If the backup will not finish, check the account's storage and Wi-Fi instead of deleting local files
- !If you need permanent room, plan on cloud or computer storage; there is no card slot
Evidence ledger
Sources behind this answer
Storage versus memory, Smart Storage, suggestions, cache, downloads and computer copy.
Pixel 5 battery, charging, chip, storage, Wi-Fi 5, IP68, display and Android versions.
Pixel 4a and 4a (5G) batteries, chips, storage, Wi-Fi 5 and Android versions.
Exact questions
Common questions
Can Google Photos free space automatically?+
Yes. Smart Storage clears backed-up photos and videos from the phone when space is low, as Google's storage article describes, so long as the backup has completed.
What if Google Photos will not back up?+
Check Wi-Fi, the account's storage and battery saver settings before deleting anything. Do not delete local copies until the backup shows complete.
Can I keep photos and free space at once?+
Yes. Back up to Google Photos, wait for the backup to finish, then delete the local copies; Smart Storage can do this automatically when space is low.
Why does 128 GB fill on these phones?+
Six years of photos, video and app updates add up, and Wikipedia says the storage is non-expandable. Move older photos off the phone.
Can I copy files off without a card slot?+
Yes. Connect the phone to a computer with a USB-C cable and copy the files, as Google's article describes.
Does deleting apps free much?+
It can, especially for games and media apps. Check the Storage screen to see the size of each.
storage full: model differences
Also covered: Google Pixel 8 family.