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Anyone who owns a smartphone has, sooner or later, encountered a pesky storage full warning. Upon analyzing the device settings, one almost always discovers that a large chunk of the available gigabytes is occupied by a mysterious and inaccessible item. The smartphone other storage (often renamed to “System Data” in newer operating systems like iOS 19 and Android 16) represents a true digital black hole. In this definitive guide, we will technically analyze what makes up this partition, why it tends to swell disproportionately, and, above all, how to free up space in total safety without compromising the device’s operation or losing vital data.
Before proceeding with cleaning operations, it is fundamental to understand mobile storage architecture. According to official Apple documentation and Google’s guidelines for Android developers, the “Other” category is not a single file, but a dynamic container that groups everything the operating system cannot classify into standard categories (Apps, Photos, Videos, Audio, Documents).
This partition typically includes:
Since we will be manipulating system files and application caches, the golden rule of computing dictates creating a safety net. Do not skip this step.
The Android operating system offers more open file management compared to its Apple counterpart, allowing for more surgical interventions. Here are the step-by-step instructions to recover precious GBs.
Unlike iOS, Android allows you to delete the cache of each individual app without having to uninstall it. This is the most effective method to reduce the “Other” item.
As highlighted by Google, the official Files app is equipped with an excellent algorithm to identify junk files and system residue.
Sometimes, Android update packages remain in memory. You can force cleaning by restarting the device in Recovery Mode and selecting the Wipe Cache Partition option (the procedure varies by manufacturer, e.g., Samsung, Xiaomi, OnePlus). Note well: starting from Android 13, many manufacturers have removed this option, managing the cache partition dynamically.
The Apple ecosystem is notoriously closed (sandboxed). iOS manages “System Data” storage autonomously, but sometimes the algorithm gets stuck. Here is how to force the system to clean up.
According to official Apple support documentation, iOS is programmed to delete temporary files during a restart. If this is not enough, connecting the iPhone to a computer forces the system to compact logs.
If an app has accumulated too much temporary data, iOS does not offer a “Clear cache” button. The only solution is the so-called Offloading.
Safari and iMessage are two of the biggest contributors to “Other” storage.
Very often, smartphone other storage is bloated by third-party apps that manage their internal cache poorly. Here are the most common culprits and how to manage them:
Telegram saves every photo, video, or GIF viewed on the device to speed up future loading. This can occupy tens of GBs in a few weeks.
Local backups and corrupt message databases can end up in the system partition.
Smart downloads download content in the background based on your preferences. These files are often not read as “Media” by the operating system.
Have you followed all the steps, but “Other” or “System Data” storage still occupies 30 GB or more? In this case, we are facing a memory leak or a corrupt system file that the operating system cannot overwrite.
The only technically valid solution, recommended by both Apple support and major Android vendors, is a Factory Reset.
Managing smartphone other storage does not have to be a mystery. As we have seen, it is simply a physiological accumulation of temporary data, logs, and cache that modern operating systems struggle to dispose of autonomously. By performing periodic maintenance—clearing the cache of the heaviest apps, managing Telegram and WhatsApp media, and forcing log cleaning via strategic restarts—it is possible to keep your device snappy and always have space available for what really matters: your photos, your videos, and your essential applications.
This section groups all files that the operating system cannot classify into standard storage categories. It mainly includes temporary application data, system logs for error recording, index files for quick searches, pending update packages, and encrypted offline data from streaming platforms.
To recover space on Android, you can clear the cache of individual applications directly from the device settings without having to uninstall them. Furthermore, it is very useful to use official file management tools to identify digital junk and delete old residual update packages by restarting the phone in recovery mode.
On the Apple operating system, you can force the cleaning of temporary files by connecting the device to a computer for a few minutes and performing a force restart. Another effective method involves using the function to offload the heaviest applications, which uninstalls the program but keeps your personal documents intact.
Widespread programs like Telegram and WhatsApp save every single viewed multimedia content on the device to speed up future loading. To permanently solve the problem, simply access the internal settings of these applications, clear the media cache, and set a strict time limit for the automatic retention of photos and videos.
If system data still occupies tens of gigabytes, you might have a corrupt file that is impossible to overwrite normally. In this case, the definitive solution recommended by manufacturers is a factory reset, remembering to first perform a complete data backup and initially configure the phone as a new device.