How to optimise your Android device’s storage for better performance

A comprehensive guide on restoring your sluggish Android phone’s responsiveness by managing storage, apps, and software, with latest tips from 2026 updates on Android 16.

A sluggish Android phone is often less a sign of age than a sign that storage, apps or software need attention. Canaltech, in a guide tested and updated in September 2026 on Android 16, says the most common culprits are a nearly full device, faulty apps, or system issues. Google has previously advised that performance can begin to suffer when free space drops below about 10 per cent, making storage management one of the most effective ways to restore responsiveness.

The first step is usually to remove what is no longer needed. Unused apps consume storage and can also keep using system resources in the background. Canaltech recommends reviewing the app list in settings, sorting by size and uninstalling anything that is no longer useful. It is also sensible to check whether an app stores important local data before deleting it, as some information may not be recoverable later.

Built-in tools can make the process simpler. Google Files and Google Photos both provide straightforward ways to reclaim space, and TechRadar notes that these services are among the most useful storage tools already available on Android devices. Files can flag large downloads, duplicates and screenshots, while Google Photos can back up images and videos to the cloud so that local copies can be removed afterwards. Android Central also highlights Files by Google’s clean-up features, including its ability to identify redundant files and, on some devices, help with more proactive storage management.

Messaging apps deserve the same scrutiny. Canaltech says WhatsApp can quietly become a major storage burden when users exchange many videos, photos and voice notes. Its storage management screen can identify large or repeated files, but important conversations should be backed up first. Cleaning cached files can also help, particularly when an app is behaving erratically. A cache stores temporary data so an app can reopen faster, but it is not intended as long-term storage. As Devx explains, clearing app cache can resolve misbehaviour without deleting personal content, although it usually frees far less space than removing photos, downloads or unused applications.

It is equally important not to mistake RAM management for storage clean-up. Canaltech says Android already manages memory automatically, keeping apps ready in the background when it is efficient to do so and closing them when another task needs resources. That means repeatedly forcing apps shut is generally unnecessary. The same article says features such as RAM Plus, RAM Boost and similar memory-extension tools rely on internal storage as virtual memory, which may help with app availability but does not replace physical RAM or deliver the same performance.

Software maintenance also matters. Canaltech advises updating apps through the Play Store and installing the latest system version when available, since updates often include stability and security fixes as well as performance improvements. On some phones, the manufacturer’s own maintenance panel can show storage, battery and memory status in one place. Samsung, for example, offers Device Care, which can surface optimisation options and security checks. In more serious cases, a factory reset may be justified, but because it erases all data, it should be treated as a last resort rather than a routine fix.

Disclaimer: This content is intended for informational purposes only. Readers are advised to exercise their own judgement, conduct due diligence, or consult a qualified expert before acting on any information provided.