The modern mobile device market is developing rapidly, and the issue of hardware architecture is becoming increasingly relevant for advanced users. If previously most smartphones worked exclusively on 32-bit architecture, today the 64-bit system has become the de facto standard. Processor capacity directly affects device performance, data processing speed and, importantly, compatibility with modern applications.
Many gadget owners wonder Question: how to determine the Android bit depth installed on their device? This knowledge is necessary not only out of curiosity, but also for solving practical problems, such as installing specific firmware versions, optimizing games or choosing the right libraries for development. In this article, we will look at all the available verification methods, from simple applications to professional command line tools.
Understanding the differences between architectures will help you avoid mistakes when installing software. For example, trying to run an application compiled exclusively for ARM64-v8aon an old 32-bit processor is doomed to failure. Let's take a closer look at how to identify the capabilities of your smartphone.
Theoretical basics: 32 versus 64 bits
Before moving on to practical testing methods, it is important to understand the terminology. Bit capacity determines the maximum amount of data that the processor can process in one clock cycle. 32-bit systems (ARMv7 architecture) historically could only address up to 4 GB of RAM, while 64-bit systems (ARMv8 and later) remove this limitation, allowing the use of significantly larger amounts of RAM.
Modern versions of the operating system Android increasingly require 64-bit processor. Starting from certain versions, Google even obliges developers to publish versions of applications that support 64-bit architecture in the Play Market. This is done to improve performance and security.
⚠️ Attention: Having a 64-bit processor does not guarantee that the device has a 64-bit version of the system installed. Manufacturers sometimes install a 32-bit shell on powerful hardware to save resources or compatibility with older software.
It is also worth noting the difference between the kernel bit capacity and the user space bit capacity. A device can have a 64-bit kernel but run applications in 32-bit mode. For accurate diagnostics, it is necessary to check the support of processor instructions and the current operating mode of the system.
If your smartphone was released later than 2018 and has more than 4 GB of RAM, with a 99% probability it uses a 64-bit architecture.
Using specialized applications
The easiest and most affordable way for the average user is to install a third-party diagnostic software. There are many utilities in the Google Play store that collect comprehensive information about hardware. The leaders among them are CPU-Z, AIDA64 and Device Info HW.
After installing such an application, you do not need to be an expert in computer architectures. The app interface is intuitive and displays key parameters on the main screen. You will need to find the section dedicated to the system or processor (System / CPU).
- 📱 In the application CPU-Z go to the tab
Systemand look at the line Kernel Architecture. - 🔍 In AIDA64 open section
Androidand find the item Supported ABIs. - ⚙️ In Device Info HW the information is in the tab
Devicein the field Hardware.
Pay attention to the list of supported instructions. If you see arm64-v8ain the list, then your processor and system support 64-bit mode. If only armeabi-v7ais indicated there, then the device operates in 32-bit mode. The presence of both values indicates full compatibility and operation in the modern standard.
Checking through developer settings and About Phone
You don’t always want to install unnecessary software. Fortunately, some information can be obtained through the system itself, although the standard settings menu often hides technical details from the user's eyes. However, by turning on developer mode, you can access deeper data.
To activate developer mode, you need to go to the section About the phone and quickly click 7 times on the item Build number. After this, a new section will appear in the main settings menu For developers. Although there is no direct “Bit capacity” line, you can indirectly judge the capabilities of the system through other parameters.
⚠️ Attention: The settings menu interface may differ depending on the manufacturer's shell (MIUI, OneUI, ColorOS). Items may have different names or be hidden in a submenu.
Sometimes information can be found in the section About the phone -> All characteristics (or similar name). Look for the line that describes the processor. If the name of the chipset model is indicated there (for example, Snapdragon 8 Gen 1), you can search for this model on the Internet and find out its architecture. This is a less accurate method, since it does not show the current operating mode of the OS, but only the capabilities of the hardware.
Why is there no explicit indication of bit depth in the settings?
Android developers consider this information unnecessary for the average user, so as not to overload the interface with technical terms that can cause confusion.
Diagnostics via computer and ADB
The most accurate and professional method is to use USB debugging and utilities ADB (Android Debug Bridge). This method does not require installing applications on the phone and provides “raw” data directly from the system kernel. You will need a computer with drivers and platform tools installed.
Connect your smartphone to the PC with a cable, make sure that debugging permission is confirmed on the phone screen. Open a command prompt (Terminal or CMD) on your computer in the ADB folder. Enter the following command to get a list of supported architectures:
adb shell getprop ro.product.cpu.abilistThis command will output a comma separated list. If you see arm64-v8a,armeabi-v7a,armeabiin the response, then the device is completely 64-bit. If the answer contains only armeabi-v7a,armeabi, then the system is 32-bit. You can also check a specific kernel property:
adb shell uname -mResult aarch64 or armv8l unambiguously indicates a 64-bit architecture. The result armv7l speaks of a 32-bit system. This method eliminates any errors in the interface of third-party applications and shows the real picture.
☑️ Preparing for testing via ADB
Analysis of system files without root access
There is another method that allows you to look inside the system, using file managers with access to system partitions, although root access is often required for full access. However, some file managers, such as Solid Explorer or FX File Explorer, may display information about processes without full access.
You can try following the path /proc/cpuinfo. This virtual file contains detailed information about the processor. Open it with a text editor and find the lines that describe the processor flags. The presence of the flag lm (long mode) in the PC world would mean 64 bits, but in the ARM world you need to look at the name of the processor model and check it with the specifications.
A more reliable way without root is to analyze installed applications. Go to the application settings and select some heavy modern application (for example, a new shooter). View information about it. If the details indicate that it uses native libraries arm64-v8a and works stably, this is an indirect confirmation of the 64-bit runtime environment.
The /proc/cpuinfo file can be read on any device without superuser rights, but interpretation of the data requires knowledge of the specifications of specific chipsets.
Comparison table architecture
To systematize the knowledge gained and quickly navigate the values that you will see during diagnostics, use the following table. It will help compare technical terms with the actual bit capacity of the device.
| Architecture | Bit capacity | ADB designation | Typical devices |
|---|---|---|---|
| ARMv7 | 32 bit | armeabi-v7a | Budget smartphones until 2016 |
| ARMv8 (AArch64) | 64 bit | arm64-v8a | Middle and high segment (2016+) |
| x86 | 32 bit | x86 | Old tablets with Intel Atom |
| x86_64 | 64 bit | x86_64 | Some tablets and emulators |
As can be seen from the table, the dominant architecture in the world of mobile devices is ARM. The transition from ARMv7 to ARMv8 was a revolutionary step that allowed mobile devices to catch up with the performance of some laptops of previous years.
It is worth considering that modern top processors such as Snapdragon 8 Gen 3 or Dimensity 9300, are gradually abandoning support for 32-bit applications at the level of large cores, forcing the transition of the ecosystem to a purely 64-bit mode. This makes checking the bit depth even more important for understanding the compatibility of future software.
Why does the average user need to know the bit depth?
It may seem that only engineers need this information, but this is not so. Knowing the bit depth helps when choosing games. Heavy projects with advanced graphics often require a 64-bit system for textures and physics to work correctly. Installing a 32-bit version of such a game on a 64-bit phone is possible, but you will not get maximum performance.
In addition, this is important when transferring data or restoring the system. If you decide to unlock the bootloader and install a Custom ROM, it is critical to choose the version that matches your device architecture. The firmware for arm64 will not install on the device with armv7, and an attempt to do this may lead to the gadget being “bricked.”
⚠️ Attention: When flashing a device, always check the processor architecture with the requirements of the firmware image. Bit mismatch is one of the common reasons for unsuccessful software installation.
This knowledge is also useful when buying used equipment. Unscrupulous sellers may try to pass off an old 32-bit phone as a newer model by changing the display name in the settings. Checking through ADB or CPU-Z will instantly reveal the true state of affairs.
When buying a used smartphone, always ask the seller to show the screen with information from the CPU-Z application to make sure that the stated characteristics correspond to the real ones.
Frequently asked questions (FAQ)
Is it possible to update 32-bit Android to 64-bit?
No, this is not possible in software. The bit capacity is determined by the physical capabilities of the processor (CPU). If a chip only supports 32-bit in hardware, no amount of flashing will make it 64-bit. If the processor is 64-bit, but the system is 32-bit, you can theoretically install custom 64-bit firmware if it is available for your model.
Does bit depth affect the speed of a smartphone?
Yes, 64-bit processors are capable of processing more data in one clock cycle and working with larger amounts of RAM. This gives a performance boost in heavy tasks, games and multitasking. However, in simple everyday tasks (calls, instant messengers), the difference may not be noticeable.
Why are some applications not installed on my phone?
Probably, the application developer released a version only for 64-bit architecture (arm64-v8a), and your device operates in 32-bit mode. In this case, you will not be able to install this application using standard methods.
How to find the bit depth if the phone does not turn on?
If the device does not boot, software methods will not work. You will have to look for the exact processor model by markings on the board (disassembly is required) or look for the specifications of your smartphone model on the manufacturer's official website or in technical databases (for example, GSMArena).
Do all modern applications work on 32-bit systems?
So far, most applications remain backward compatible and contain libraries for both architectures. However, Google is gradually requiring developers to switch to 64 bits, and in the future, support for 32-bit systems may be completely discontinued in new versions of popular software.