The real Android storage problem (and why deleting photos isn’t the answer)

You opened your phone, tried to take a photo or download an app, and got that message: “insufficient storage”. The immediate reflex for many people is to open the gallery and start deleting photos, but this rarely solves the real problem. In most cases, photos are just part of what’s consuming your device’s internal storage.

This tutorial shows how to identify what’s really weighing on your Android and how to free up gigabytes of storage without losing any cherished memories. What you need: an Android phone with any version from Android 10 onwards, internet access for some steps, and about 20 minutes of attention.

What’s eating up your phone’s storage

Before deleting anything, the first step is to understand what’s taking up space. Android has a native panel for this.

1. Open Settings
2. Tap Storage (some manufacturers show it as “Memory and storage” or “Device storage”)
3. Wait for the system to calculate usage by category

You’ll see a breakdown by type: apps, images, videos, audio, files, and cache. Cache (temporary data that apps store to load faster, like thumbnails and session files) often surprises people. On phones used for over a year without cleaning, it’s common to find 3 GB to 8 GB in just this category. This alone would be enough to solve the storage problem for most users.

Cache cleanup: the mandatory starting point

Cache isn’t inherently bad. It exists to speed up app loading. The problem is that over time, it accumulates obsolete data that’s no longer useful.

How to clear cache from individual apps

1. Go to Settings > Apps
2. Select the app you want to clean (WhatsApp, YouTube, Instagram, and browsers tend to accumulate the most)
3. Tap Storage
4. Tap Clear cache

Repeat the process for the heaviest apps. Clearing cache doesn’t delete your conversations, photos, saved passwords, or app settings. It’s just the equivalent of throwing away old receipts you keep in a drawer for no reason.

How to clear cache from all apps at once

Some manufacturers, like Samsung and Xiaomi, offer native cleaning tools in the system itself. On Samsung, the path is usually Settings > Device maintenance > Storage > Clean now. On Xiaomi, there’s a Security app with integrated cleanup functionality. Check if your model has this option before cleaning app by app.

How to move photos to the cloud without deleting them from your phone (yet)

Here’s the most efficient method to free up space without losing anything: back up your photos to a cloud service and then remove the local copies. The process is simple, but requires attention to confirm the backup is complete before deleting anything.

Using Google Photos

Google Photos is the most direct path for Android users. Google accounts offer 15 GB free storage shared between Gmail, Drive, and Photos. If you need more, Google One plans start at R$ 3.99/month for 100 GB (check the current price on Google’s website as it may vary).

1. Open Google Photos
2. Tap your profile photo in the top right corner
3. Go to Backup status and confirm it’s enabled
4. Wait for synchronization to complete (use Wi-Fi to avoid using mobile data)
5. When the backup shows “Backup complete”, go back to the profile menu
6. Tap Free up device storage
7. The app will show how many GB can be removed from local storage; confirm the deletion

Photos remain accessible at any time through Google Photos, both on your phone and on your computer. What’s removed is only the copy stored internally on the device.

Using Amazon Photos

Those with an Amazon Prime subscription have access to Amazon Photos, which offers unlimited storage for photos in original resolution (an important advantage over Google Photos, which compresses images on the free plan). The app is available on the Play Store and the backup process follows the same logic: enable it, wait for synchronization, then remove local files.

Videos, downloads, and forgotten files

Photos resolved, it’s time to look at the rest. Videos recorded by your phone itself tend to be the heaviest files. A 4K video of 3 minutes can easily take up over 1 GB.

1. Open the Files app (native to Android, or My Files on Samsung)
2. Go to the Videos section and sort by size
3. Identify videos you don’t need locally anymore and delete or move them to the cloud

The Downloads folder deserves special attention. It’s common to find APK files for app installation (which no longer serve a purpose after the app is installed), PDFs downloaded once and never opened again, and images received via email. Clean up what has no use.

If you use WhatsApp, the app’s media folder is another critical point. Everything sent and received in the app is saved locally by default. Within WhatsApp, go to Settings > Storage and data > Manage storage to see which conversations take up the most space and delete specific files without needing to delete the entire conversation.

Installed apps you forgot existed

Open the app manager (Settings > Apps) and sort by size. You’ll be surprised how much some apps you barely use are taking up. Games are the biggest offenders: many exceed 2 GB and remain installed months after your interest has passed.

Uninstall what you don’t use. For apps you use rarely, consider the option to uninstall and reinstall when needed, especially for games. Another option available in Android 10 and later is App Archiving, which removes the app code but keeps the data, allowing you to restore it quickly later. Check if the Play Store offers this option for the app you want to free up.

Speaking of connectivity: if you’re taking this opportunity to organize your phone and want to make sure your home network is also in order, it’s worth knowing how to see who uses your Wi-Fi and block access to ensure that nobody is consuming your bandwidth while you do backups.

Configure your phone to avoid accumulating clutter again

Freeing up space is half the work. The other half is preventing the problem from coming back in three months.

• Enable automatic backup from Google Photos and set it to run on Wi-Fi
• Disable automatic media download in WhatsApp: go to Settings > Storage and data and uncheck automatic download options on mobile networks and, if you prefer, also on Wi-Fi
• Review downloads periodically: create a habit of opening the Files app once a month and cleaning up what’s not useful
• Prefer web versions of apps when possible: instead of installing the bank or streaming app you use rarely, access it through your browser
• On devices with Android 12 or higher, enable automatic cleanup suggestions in storage settings, if your manufacturer offers it

When the problem is the microSD card (or the lack of one)

If your phone has a microSD card slot (check your model’s technical specifications), moving apps and media to the card is a practical solution. Not all apps allow this, but photos, videos, and files in general can be redirected.

If the device doesn’t have microSD and is still full even after all cleanups, the solution could be an OTG USB drive (On-The-Go), which connects to the USB-C port and functions as temporary external storage. Models from brands like SanDisk and Kingston with dual inputs (USB-A and USB-C) are found in Brazil at varying price ranges depending on capacity: 64 GB versions are usually found between R$ 80 and R$ 150, but confirm current prices before buying.

Frequently asked questions about freeing up space on Android

Does clearing cache delete photos, passwords, or messages?

No. Cache consists of temporary files that apps create to run faster, such as image thumbnails and session data. Clearing cache doesn’t affect your photos, contacts, conversations, or any app settings.

Does Google Photos compress photos with free backup?

Since 2021, Google Photos counts the space of all photos against your 15 GB free account storage, regardless of quality. Photos uploaded in “Original quality” take up more space; those in “Storage saver” go through slight compression. For most people, the visual difference is imperceptible, but photographers who work with large prints prefer to keep the original.

Can I use more than one cloud service at the same time?

Yes, and it’s even recommended if you want redundancy. There’s nothing preventing Google Photos and Amazon Photos from syncing the same images simultaneously. What will vary is the data consumption and battery drain during synchronizations.

How do I know if the backup is complete before deleting local photos?

In Google Photos, open the app, tap your profile photo, and check the Backup status. It shows exactly how many items still need to sync. Only delete local files when the message indicates that the backup is complete and up to date.

Freed storage is just the beginning

Following the steps above, most phones with storage problems can recover between 5 GB and 20 GB without deleting a single photo. The process requires some patience the first time, but once automatic backup and WhatsApp media management are configured, the problem rarely returns with the same intensity.

If you freed up space but your phone is still slow, the problem may not be storage. It could be saturated RAM, outdated Android version, or simply hardware that has reached the end of its useful life. In that case, the conversation changes from “how to clean” to “which phone is worth buying now”.