How to find out the amount of memory on Xiaomi: RAM and ROM in 30 seconds

Have you bought a used Xiaomi and want to make sure the seller didn’t cheat with the specs? Or just forgot how much memory your Redmi Note 12 has? In this article, you’ll find all the working ways to check RAM (RAM) and ROM (Internal Storage) on any device of the brand, from the budget Poco to the flagship Mi 14.

We will analyze both standard methods through settings and hidden features – for example, an engineering menu or a slate. ADB-You'll also learn why sometimes the system shows less memory than the box says, and how to distinguish real volume from virtual expansion through the box. RAM Boost.

1. Memory check through MIUI settings

The fastest and safest way is to use the built-in tools, which are suitable for all versions of MIUI (12 to 14) and do not require third-party applications.

Instructions:

• 📱 Open the Settings app (cog icon on the desktop).
• 🔍 Scroll down and select About Phone (or About Device on Newer Versions).
• 📊 Find Characteristics or Memory – here it will be specified: RAM (e.g. 8GB) ROM (e.g. 128GB or 256GB) UFS 2.2)

⚠️ Note: Some models (e.g. Xiaomi) 13T) The path may be different: Settings → Additionally. → Memory. If you can't find a section, search by settings (lap in the upper right corner).

Is "Settings" open | Is there a "About Phone" section | See if "RAM" and "ROM" items | Does the data match the box-->

2.Use of the application "Security" (Security)

Xiaomi’s proprietary Security app not only protects against viruses, but also provides detailed information about the system, including memory, which works even on older models like the Redmi 4X.

How to check:

1. Launch the Security app (shield icon).
2. Click on the icon. ⚙️ Acceleration (or Optimization).
3. At the top of the screen you will see a graph of the use of RAM and ROM, indicating the total volume.
4. For details, tap on the schedule - the expanded statistics will open.

💡 Useful tip: In the same section, you can clear the cache of applications, which will free up to 1-3 GB of memory without deleting files. But do not abuse the cleaning - some applications (for example, Google Maps) will take longer to load.

Once a month |Only when the place ends |Never |I don't know how to do it-->

3. Hidden codes for the engineering menu

If standard methods don't work (for example, after custom firmware), you can use service codes, which open hidden menus with technical information.

The most reliable codes for Xiaomi:

• 📞 ##4636## – opens the Testing menu, where the Memory line will be in the Phone Information section.
• 📱 ##225## - will show the firmware version and ROM volume (does not work on all models).
• 🔧 ##6484## - A hardware test where both types of memory are listed in the Memory section.

⚠️ Warning: Do not change the settings in the engineering menu unless you know their purpose! For example, accidentally changing the parameters of Band Selection can lead to loss of the network.

4. Check through ADB (for advanced users)

If you want the most accurate data (for example, to diagnose malfunctions), use ADB, a debugging tool for Android, which will show even the real amount of memory if part of it is blocked by the manufacturer.

Instructions:

1. Enable Developer Mode: Go to Settings → About Phone. Tap 7 times on MIUI Version. Go back to Settings → Additional → For Developers and enable USB Debugging.

adb shell


cat /proc/meminfo | grep MemTotal

For ROM:

adb shell df -h /data

📌 Example of inference:

MemTotal:       7856748 kB (≈ 7.5 GB)


/dev/block/mmcblk0p54  115G  24G  91G  21% /data

⚠️ Note: If an error occurs after the adb shell command devices/emulators found, check it out:

• Are Xiaomi drivers installed on PC?
• Is File Transfer enabled when connecting via USB?
• Does not block access to an antivirus (for example, Avast or Kaspersky)?

5. Third-party diagnostic applications

If you want not only numbers but also visualization of memory usage, install one of these apps:

💡 Useful advice: B AIDA64 Please note the Memory section. → RAM. If it says Total: 6.8 GB, And the box says 8. GB, a portion of the memory is occupied by the system or is virtually extended (for example, through RAM Boost on Poco F5).

6.Why is Xiaomi less memory than stated?

Many users find that the actual ROM volume is 5-10% smaller than the stated ROM, for example, instead of 128 GB, the system shows 119 GB.

• 📁 System files: MIUI It takes 8–12 GB (including firmware, kernel, and preinstalled applications).
• 🔄 Formatting: Manufacturers count 1GB = 1,000,000 bytes, and the system is 1 GB = 1,073,741,824 bytes (difference) ~7%).
• 🛡️ Backup: Some models (such as Black Shark 5) have 4-6 GB of recovery.
• 🔄 RAM Boost: Technology of virtual increase of RAM due to ROM (for example, +3GB on the Redmi Note 11 Pro+).

📌 Key takeaway: If the difference between claimed and real memory is less than 10 to 15 percent, that's not a defect. But if you see 64 GB instead of 128 GB, maybe the seller has replaced the memory chip with a less capacious one.

💡

To check if the memory is fake, compare the data from Settings and the AIDA64 app, and if they match, it's okay.

7 How to distinguish physical memory from virtual memory (RAM Boost)?

Xiaomi on many models (for example, Poco X5 Pro or Redmi K60) uses RAM Boost technology, which adds virtual memory to the physical memory due to ROM.

Ways:

1. In Settings → Additional → Memory, see the RAM Extension line. If it is active, part of the specified volume is virtual.
2. In AIDA64 or CPU-Z, look only at the Total RAM string and ignore Available.
3. In the engineering menu (#4636##) virtual memory is displayed as Swap.

⚠️ Attention: Virtual memory is slower than physical memory (since it uses ROM).If you notice slowing down when multitasking, try turning off the memory. RAM Boost in settings.

FAQ: Frequent questions about Xiaomi memory