How to check Internal Memory specifications on your Android phone

How to check and understand Internal Memory specifications on your Android phone

Navigating the intricacies of internal memory on Android phones can be as daunting as it is essential. Understanding the specifications of various memory types, from RAM and ROM to DRAM and DDR4, lays the foundation for utilizing your device's capabilities fully. This knowledge not only enhances your user experience but also ensures that your smartphone functions at its optimal speed and efficiency.

This article delves into the realm of Android storage, explaining the significance of different storage devices such as memory cards, cache memory, and even virtual memory. By dissecting the relationship between storage types like SRAM and SIMM and your phone's performance, it offers a comprehensive guide on how to check your device's internal memory specifications and suggests methods to boost its storage performance effectively.

Understanding Android Storage: Type and Categories

Checking Storage Type on Your Android Device

To determine whether your Android phone uses UFS or eMMC storage, follow these steps:

  1. Install Terminal Emulator: Download and install the Terminal Emulator app from the Google Play Store.
  2. Open Terminal and Enter Command: Launch the app and type cat /proc/scsi/scsi into the terminal.
  3. Analyze the Output: Look for the vendor and model number in the output displayed.
  4. Research Storage Type: Use the vendor and model number to search online and ascertain whether your device uses UFS or eMMC storage.

Android Storage Options

Android devices offer various storage options for managing app data:

  • App-specific Storage: Stores files only accessible by your app in dedicated directories, either in internal or external storage.
  • Shared Storage: Allows files to be shared with other apps, including media and documents.
  • Preferences: Utilizes key-value pairs to store private, primitive data.
  • Databases: Employs SQLite databases to store structured data, accessible only by your app.

Types of Android Memory

Android devices categorize memory into internal and external storage, each serving different purposes:

  • Internal Storage: Used for private data, accessible only by the owning app, and cleared upon app uninstallation.
  • External Storage: Provides storage for shared user files like photos and videos, accessible by all apps.
  • Shared Preferences and Databases: Stores private data in key-value pairs or structured databases, respectively.

Android Storage Segmentation

Storage on Android devices is segmented as follows:

  • Internal Storage: Main storage area, typically faster and includes data like the operating system and apps.
  • External Storage: Generally used for larger files shared between apps or transferred between devices.
  • Shared Preferences: Ideal for storing small amounts of data persistently.
  • SQLite Database: Supports complex data storage needs within an app-specific database.

Understanding these storage types and categories helps optimize device performance and app functionality.

Checking Storage Type on Your Android Phone

To efficiently check the storage type on your Android phone, follow these organized steps:

Step-by-Step Guide to Accessing Storage Information

  1. Access Apps or Settings:

    • From the home screen of your Android device, either tap on 'Apps' or swipe up to view all apps.
    • Navigate to and select 'Settings'.
  2. Locate Storage Settings:

    • In the Settings menu, find and tap on 'Storage'. This section provides a detailed view of the internal storage and, if applicable, SD card storage.
  3. View Storage Details:

    • The Storage menu will display the total capacity of your device's internal storage.
    • It will also show how much space is currently used by the system and apps, as well as the available free space.
  4. Check SD Card Storage (if applicable):

    • If your device supports an SD card and one is installed, tap on 'SD Card' within the storage menu.
    • This action will open a new menu specifically showing the storage usage details for the SD card.


Additional Storage Insights

  • Battery and Device Care:

    • For devices with a 'Battery and Device Care' setting, navigate to this section from the main settings page.
    • Tap on 'Storage' for a summary and more detailed information about the storage capacity.
  • Finding Storage on Different Devices:

    • On Google Pixel and most non-Samsung devices, directly go to 'Storage' in the Settings.
    • On Samsung Galaxy devices, access 'Battery & Device Care' followed by 'Storage' for detailed insights.

Understanding RAM Usage

  • Checking RAM:
    • The amount of RAM your device utilizes can be found under 'Device Maintenance' or 'Device Care' on Samsung devices, or 'Developer Options' on other Android devices.

These steps provide a comprehensive method to not only check the type and capacity of storage on your Android phone but also understand the distribution of space and manage it effectively.

Determining Storage Speed

To effectively determine the storage speed of your Android device, you can utilize various methods and tools that provide detailed insights into the performance of your device's storage system. Here are the steps and resources you can use:

Using Benchmarking Apps

  1. Download a Benchmarking App:
    • Install apps like AndroBench, AnTuTu, or Geekbench from the Google Play Store. These apps are designed to measure the performance of your device including storage speeds.
  2. Run the Benchmark:
    • Open the app and select the option to run a full benchmark. This test will include measurements for random and sequential read/write speeds.

Checking Storage Speed via Settings

  1. Access Storage Settings:
    • Navigate to 'Settings' > 'Storage' > 'Advanced' > 'Storage details' or 'Storage settings'.
  2. Review the Speed Information:
    • Look for any information related to the speed of the storage, which might be indicated indirectly through data transfer rates or performance scores.

User Experiences and Additional Tools

  • Disk Speed Test App:
    • Some users recommend using specific apps like 'Disk Speed Test' to get a more direct assessment of read/write speeds.
  • Observations from Users:
    • User experiences, such as those reported on forums, can provide real-world data about how storage speed might change after system updates or when the storage is nearly full.

Understanding NAND Memory Performance

  • Impact of Storage Filling Up:
    • NAND memory performance can degrade as the storage fills up. Maintaining free space can be crucial for keeping up optimal performance.

Practical Insights

  • Sequential vs. Random Speeds:
    • Sequential read/write speeds are vital for large file transfers, whereas random read/write speeds are more critical for overall system responsiveness and app loading times.

By following these steps, you can gain a comprehensive understanding of your Android device's storage speed, helping you make informed decisions about managing your phone's storage and performance.


Impact of Storage Type and Speed on Phone Performance

Understanding the Role of RAM and Storage Configurations

  1. Variability in Performance Based on RAM Configuration:
    • Devices like the Huawei P10 Plus show varied performance metrics based on RAM capacity. For instance, a model with 6GB RAM typically demonstrates higher sequential read speeds compared to its 4GB counterpart. This suggests that increased RAM not only supports smoother multitasking but also enhances the overall speed of data access and processing.

Memory Management in Android

  • Managed Memory Environment:

    • Android operates under a managed memory system where garbage collection plays a crucial role. This system helps in automatically reclaiming memory that is no longer in use, thus optimizing the available RAM usage and enhancing device performance.
  • Heap Size Limitations:

    • Each application on an Android device operates within a constrained heap size, which is a segment of memory allocated to the app. The system imposes a hard limit on the heap size to ensure that one application does not consume excessive resources, which could affect the multitasking capabilities of the device.

Impact of Storage Type on System Performance

  • Role of Storage Speed:

    • The speed of the internal storage, such as DRAM, significantly impacts the device's performance. Faster storage can drastically reduce load times and improve the responsiveness of applications. Conversely, when storage relies on slower components like HDDs or degraded sectors of flash memory, the device may experience noticeable slowdowns.
  • Effects of Low Memory Situations:

    • When Android devices run low on memory, systems like the kernel swap daemon and low-memory killer are activated. These systems manage the available memory by reallocating or freeing up resources, which is crucial for maintaining system stability but may temporarily reduce performance.

Dynamic Memory and Storage Optimization

  • Caching and Data Management:

    • In scenarios where the device has ample resources, Android OS utilizes advanced caching mechanisms to enhance data retrieval processes, which significantly speeds up the operation. However, in resource-constrained situations, these optimizations are scaled back to free up memory, potentially slowing down the system and affecting battery life.
  • Storage Filling and Fragmentation:

    • As the internal storage fills up, it not only becomes slower due to the use of less efficient memory sectors but also suffers from fragmentation. This can further degrade performance as the system struggles to find contiguous space for new data, which is particularly impactful when dealing with large files.

By understanding these dynamics, users can better manage their device’s storage and memory configurations to optimize performance and extend the lifespan of their Android phones.

Enhancing Your Android’s Storage Performance

Simple Steps to Enhance Storage Performance

  1. Clear Unnecessary Files and Apps:

    • Regularly delete photos and videos that have been securely backed up to cloud services like Google Photos.
    • Uninstall apps that are not in use and clear the cache and data of remaining apps through your phone's Settings app to free up memory.
  2. Manage Large Files and Downloads:

    • Remove large files or transfer them to a computer via USB. Regularly check your download folder and delete unneeded files.
  3. Optimize App Usage:

    • Avoid closing apps manually unless they are unresponsive. For apps consuming too much memory, consider uninstalling them.

Advanced Storage Management Techniques

  • Utilize External Storage:

  • Regular Updates and Maintenance:

    • Keep your Android device updated with the latest software, which can include important performance enhancements and bug fixes.

Table: Tools and Apps for Storage Optimization

Tool/App NamePurposeAvailability
Files by GoogleJunk file cleaning and managementGoogle Play Store
Simple System MonitorRAM and storage monitoringGoogle Play Store
Developer OptionsDetailed device performance dataBuilt-in (hidden)

Practical Tips for Maintaining Optimal Performance

  • Keep Storage 10-15% Free:

    • Aim to keep at least 10-15% of your device's storage free to avoid performance lags and app malfunctions.
  • Handle Media Files Wisely:

    • Regularly review and delete duplicate files, compress videos, and use cloud services for storing images and videos.

By following these guidelines, you can significantly enhance the storage performance of your Android phone, ensuring it runs smoothly and efficiently.


Throughout this guide, we've traversed the landscape of Android internal memory, shedding light on its complexities and offering insights on optimizing storage performance. From understanding the different storage options available, such as RAM, ROM, internal, and external storage, to adopting practical steps for enhancing storage performance, this discussion aims to empower users to make informed decisions about their devices. The emphasis on regular management practices, such as clearing unnecessary files and optimizing app usage, highlights the significant impact of mindful storage use on a phone's overall performance.


With this knowledge, Android users are now better positioned to navigate their device's storage system, ensuring smoother operation and prolonging their lifespan. The exploration of storage types, alongside detailed procedures for checking storage specifications and enhancing performance, provides a solid foundation for users to address common issues and improve their experience. As technology continues to evolve, so too will the strategies for managing digital storage, underscoring the importance of staying informed and proactive in maintaining device health.

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