Has your smartphone on Android began to slow down, applications are constantly closing, and games are crashing with the error “Not enough memory”? The reason most often lies in shortage random access memory (RAM). Even flagship models, after 2-3 years of operation, begin to experience a shortage of resources due to background processes, OS updates and “gluttonous” applications.

Unlike iOSwhere memory management is strictly controlled by the system, Android gives the user more freedom - and opportunities for optimization. In this article we will look real ways to increase available RAMincluding software tricks, developer settings and hardware solutions. Important: not all methods are equally effective, and some require technical skills. Let's start with the simplest and safest.

1. Cleaning up background processes: a quick way to free up RAM

The most obvious, but often ignored step is closing unnecessary applications. Unlike the myth of “closing all apps,” here we are talking about competent management of background processes. The fact is that Android automatically “freezes” unused applications, but some of them (especially instant messengers and social networks) continue to consume memory even when minimized.

How to properly clear RAM:

  • 📱 Use the built-in button "Clear everything" in the recent applications menu (swipe up and hold on most smartphones). This will instantly free up 20-40% of memory.
  • ⚙️ Go to Settings → Applications → Working and manually stop processes that are taking up >100 MB of RAM (for example, Facebook, Instagram, TikTok).
  • 🔄 Install a memory monitoring widget (for example, Simple System Monitor) for quick access to statistics.

⚠️ Attention: Do not clear the cache of system applications (for example, com.android.systemui) - this can lead to interface crashes. Also avoid "memory optimizers" from Play Market: most of them themselves become a source of brakes.

📊 How often do you clear the RAM on your smartphone?
Every day
Once a week
Only when it slows down
Never

2. Setting up developer options to optimize memory

The hidden menu "Developer options" contains tools that allow you to limit the background activity of applications. It is easy to activate it:

  1. Go to Settings → About phone.
  2. Find the item Number build and tap on it 7 times.
  3. Return to the main settings menu - a new section will appear For developers.

Now you can optimize memory:

  • 🔧 Limit background processes: in For developers → Process limit select Maximum 3 processes (for weak smartphones) or Maximum 4 processes (for devices with 4-6 GB of RAM).
  • 🚫 Disable animation: in the same menu, set Window animation scale, Animation scale transition and Animator duration to Off —this will speed up the interface.
  • 📊 Enable Do not save actions (option Don't keep activities) so that applications close immediately after minimizing. Minus: you will have to enter passwords more often.

⚠️ Attention: On some firmware (for example, MIUI or ColorOS), these settings may be reset after updating the system. once a month.

Activate the menu for developers (7 taps by build number)|

Set the limit of background processes to 3-4|

Disable all interface animations|

Enable the option "Do not save actions" (optional)-->

3. Using the swap file (swap): virtual RAM

If your smartphone supports root access, you can create swap file a virtual extension RAM from internal memory. This method is suitable for devices with Android 7.0 and newer, but requires caution: excessive swap can shorten the life of flash memory.

Instructions for experienced users:

  1. Install Terminal Emulator from Play Market or Magisk Module for swap.
  2. Enter commands (root access required): 
    su

    swapon /dev/block/zram0
    

    echo 1073741824 > /sys/block/zram0/disksize

    Here 1073741824 is the swap size in bytes (1 GB). For 2 GB use 2147483648.

  3. To make the settings permanent, add a line swapon /dev/block/zram0 to the file /init.d/99swap.

An alternative for devices without root is applications like Swap File Maker, but their efficiency is lower. Remember: swap does not replace physical RAM, but only temporarily compensates for its shortage.

What is zRAM and how is it better than regular swap?

zRAM (formerly called compcache) is a data compression mechanism in RAM that allows you to “expand” more information in a limited amount of RAM. Unlike classic swap, which uses slow flash memory, zRAM works directly in RAM, which speeds up data access by 30-50%. Starting with Android 4.4, zRAM is enabled by default on many devices, but its size can be increased manually through the system kernel.

Method Requires root Increase in RAM Risks
Cleaning background processes ❌ No 10-40% Minimal
Limiting processes in the menu developer ❌ No 15-30% Reset settings after update
Swap file (swap) ✅ Yes Up to 2 GB (virtually) Memory wear, lags
zRAM ✅ Partially 20-50% (due to compression) Overheating under high load

4. Disabling unnecessary system applications

Many manufacturers (Samsung, Xiaomi, Huaweiinstall dozens of pre-installed applications on smartphones (bloatware), which take up RAM and processor time. They cannot be removed using standard means, but can be disabled.

Ways to free up resources:

  • 🛠️ Via Settings → Applications: find unnecessary apps (for example, Bixby, Mi Video, duplicate browsers), open their page and click Disable or Uninstall updates.
  • 📦 Use ADB (Android Debug Bridge) for deep cleaning Connect the phone to the PC, turn on USB Debugging and run the command: 
    adb shell pm uninstall -k --user 0 com.example.bloatware

    Replace com.example.bloatware with the package name of the application (you can find it out via App Inspector).

  • 🔄 For devices with root: install Titanium Backup or System App Remover for full deleting system apps.

⚠️ Attention: Disabling critical services (for example, com.android.phone or com.google.android.gms) can lead to loss of connection or Play Market inoperabilityBefore mass shutdown, create a backup copy via adb backup or Titanium Backup.

adb shell dumpsys meminfo --package=com.android.systemui

Replace com.android.systemui with the name of the package for analysis.-->

5. Updating the firmware and kernel: a hidden performance reserve

Outdated versions Android or unoptimized kernels can “eat up” up to 30% of RAM due to leaks and ineffective process management Updating the firmware often solves this problem:

How to update correctly:

  • 🔄 Check for official updates in Settings → System → Software update. Manufacturers regularly release patches to optimize memory (for example, One UI 6.0 from Samsung reduced RAM consumption by 12% compared to One UI 5.1).
  • 📲 Install custom firmware (for example, LineageOS, Pixel Experience), if official updates are not released. They are devoid of bloatware and are often better optimized.
  • 🔧 Update the kernel via FrancoKernel or ElementalX (requires root and compatibility with the model). data-i="186">(Ultra Kernel Samepage Merging), which reduces RAM consumption by 15-20%. UKSM (Ultra Kernel Samepage Merging), which reduces RAM consumption by 15-20%.

⚠️ Attention: Unofficial firmware can disrupt services Google Pay, Netflix HD and banking applications due to lack of certification Widevine L1 or SafetyNet.

💡

Updating the kernel to a version with UKSM support can give a greater performance increase than increasing physical RAM by 1 GB.

6. Hardware solutions: increasing physical memory

If software methods do not help, there are two radical options left. option:

1. Replacing the motherboard with a version with a larger amount of RAM. Some models (for example, Samsung Galaxy S10 or Xiaomi Redmi Note 10 Pro) were produced in versions with 6/8/12 GB of RAM. On AliExpress or in service centers you can find boards with a large amount of RAM, but:

  • ⚠️ Risk of incompatibility with the firmware.
  • 💰 The cost of replacement may exceed the price of the smartphone.
  • 🛠️ A professional soldering iron is required and experience with microelectronics.

2. Using external devices with RAM. There are gadgets like Samsung DeX or Razer Kishithat allow you to connect your smartphone to an external monitor and use it as a PC. In this case, some of the tasks are performed on the server (via cloud services), unloading the phone’s memory. However, this does not directly increase the RAM, but only redistributes it. load.

⚠️ Attention: Buying “RAM extenders” like USB drives with the function ReadyBoost (as for Windows) for Android is technically fraud. Android does not support RAM expansion via external media.

7. Alternative methods: when nothing helps

If all of the above methods do not work, consider the following options:

  • 🔄 Reset to factory settings. A radical method that deletes all user data, but returns the system to its original state. Before resetting, make a backup via adb backup or Swift Backup (root required).
  • ☁️ Use of cloud services. Transfer some data (photos, videos, documents) c Google Drive, Yandex Disk or Mega. This will not increase RAM, but will reduce the load on storage, which will indirectly improve performance.
  • 📱 Buying a new smartphone. If your device is older than 4 years and has < 4 GB of RAM, any optimizations will give a temporary effect. (for example, Genshin Impact or Chrome with 50+ tabs) require a minimum of 6-8 GB of RAM.

⚠️ Attention: Avoid "miracle apps" like RAM Expander or Memory Booster. They either do not work or contain malicious code. The only exception is Greenify (for root), which actually “freezes” background processes.

FAQ: Frequently asked questions about increasing RAM by Android

Is it possible to increase RAM on Android without root?

Yes, but the options are limited. You can:

  • Clear background processes manually.
  • Limit the number of background applications in the developer menu.
  • Disable unnecessary system apps (without uninstalling).

To create a swap or deep optimization of the kernel, you will need root access.

Why does the phone run faster after clearing the RAM, but then slows down again?

This is normal behavior AndroidThe system is dynamic. manages memory: the more free RAM, the more actively it is used to cache frequently used applications. Over time, the cache fills up again, and performance drops. The solution is to set up a limit on background processes (see section 2).

How to check how much RAM is used on my smartphone?

There are several ways:

  • V Settings → Memory → RAM (on some firmware).
  • Via Terminal Emulator with command free -h or cat /proc/meminfo.
  • Install monitor applications: Simple System Monitor, DevCheck.
Is swap harmful for a smartphone?

Yes, if you use it constantly. Swap uses internal memory (eMMC/UFS), which has a limited recording resource (usually 300-500 cycles). writing/reading with active swap shortens the life of the drive. It is recommended to use swap only in extreme cases and disable it when idle.

Which smartphones are better optimized for RAM use?

The leaders in memory management efficiency are:

  • Google Pixel (pure Android with minimal bloatware).
  • ASUS ROG Phone (optimized for games).
  • Realme GT and POCO F (aggressive cleaning of background processes).
  • iPhone (not Android, but for comparison: 4 GB of RAM on iPhone 13 work more efficient than 8 GB on many Android smartphones).