When buying a new gadget or operating it, users often encounter confusion about software names. The question “Xiaomi which OS” is one of the most frequent in the tech segment, because the answer to it is not as clear as it seems at first glance.
But the pure Android is rarely seen on the Chinese giant’s devices, and the company has a proprietary shell installed on top of the base system that completely changes the visual style, settings menu, and adds unique features. For a long time, this shell was MIUI, but in 2023-2026, the company began a global transition to a new platform called HyperOS.
Understanding the difference between the core and the user interface is critical to getting the gadget right, and it's the version of the underlying OS that determines compatibility with Google Play apps, and the shell version that determines whether you have widgets, speed, and customization capabilities. Let's get into the details so you know exactly what's running your device.
Basic Platform: The Role of Android in Xiaomi’s Ecosystem
The foundation on which all smartphones of the brand, including Redmi and POCO, are built, remains the mobile platform from Google. Android provides basic functionality: working with the file system, memory management, communication with application servers and basic security. Without this framework, no Xiaomi phone would be able to run the usual messengers or social networks.
Depending on the year the model is released, there may be different versions of this system on board: the flagship models of 2026 already ship with Android 14 or even Android 15, while budget devices can stay on Android 12 or 13. That doesn't mean the phone is worse, just Google is providing new API features and security improvements in stages.
Why Xiaomi doesn’t use pure Android?
It's important to understand that the core system updates come with a delay: Google releases code for their Pixel, then Qualcomm and MediaTek adapt drivers for the processors, and only after that Xiaomi implements changes to its shell, so the Android version number in the settings may differ from the current one in the market.
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Android is the “engine” of your smartphone that is hidden under the hood, and what you see on the screen is the body and interior created by Xiaomi engineers.
Evolution of the interface: from MIUI to HyperOS
For years, MIUI (MI User Interface) was synonymous with Xiaomi smartphones, which made standard Android a powerful tool with hundreds of settings, but with the release of MIUI 14, the system began to gradually rebrand and re-birth to HyperOS.
HyperOS is not just a new version of MIUI 15, as many people think, it's a fundamental redesign of the architecture. If MIUI was based exclusively on Android, the new system is built on a hybrid kernel that combines Linux (for phones) and Xiaomi Vela (for IoT devices), this is done to make the smartphone, tablet, smartwatch and even Xiaomi car work as a single organism.
Visually, the changes have affected animations, fonts and control panels, iOS-style widgets, improved multitasking, and the user can make the transition almost invisible, except for the new menu item names and the changed logic of the notification center.
It is worth noting that the transition to the new OS is gradual. flagships of the Xiaomi 13 and 14 series received HyperOS first, then the update reached the popular models of Redmi Note. Budget segment can remain on MIUI for a long time, which is normal practice for supporting older devices.
How to find the exact version of the system on your device
So you don't know what firmware is on your device, you just have to look at the settings, and the path may vary slightly depending on the version of the shell, but the logic remains the same, and you have to find the partition that's responsible for the information about the device.
On most current models, the algorithm of actions looks as follows:
- 📱 Open the Settings app (cog icon).
- 🔍 At the top of the list, select About the phone.
- ℹ️ Find the line Version MIUI or the HyperOS version.
- 👆 Click on the system logo (large digit or icon) several times to see the hidden menu with the Android build number.
In the window that opens, you will see two key digits: one that points to the base Android version (like 13 or 14), and the other that points to the shell version (like 14.0.5 or 1.0.2).
⚠️ Note: Do not confuse the build number (for example, OS1.0.3.0) If you're looking for a reset instruction for Android 14, and you have Android 12 with a shell. MIUI 14, you may find incorrect screenshots or commands.
You can also get information through the engineering menu by typing the code ##4636## in the “caller.” However, this method is designed for advanced users and may contain settings that, without knowledge, will lead to unstable operation of the radio module or network.
Comparative table: MIUI vs HyperOS
The differences between the old and the new system are only noticeable when you look at it in detail: HyperOS is lighter, works faster with memory and manages background processes better.
| Characteristics | MIUI (versions 12-14) | HyperOS (version 1.0+) |
|---|---|---|
| Base core | Linux (Android) | Linux + Xiaomi Vela |
| Size of the service pack | Up to 5-6 GB | About 3-4 GB (optimized) |
| Launching applications | Standard speed | Accelerated loading (up to 25% faster) |
| Ecosystem | Separate devices | Single space (phone, car, house) |
| Design | Xiaomi's Classic Style | New fonts, live widgets, iOS-likeness |
As you can see from the table, the main bet is on optimizing and connecting devices, which means less lag when switching between heavy games and smoother overall interface performance for the average user.
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If you are planning to buy a used Xiaomi smartphone, be sure to check if it has the official Global firmware version. Chinese versions (CN) with re-flashed language can have problems with notifications and Google services.
Global and Chinese versions: what is the difference
One of the most confusing things for users is the difference between Global ROM and China ROM. Smartphones produced for the domestic market of China, initially do not have Google services (Play Market, YouTube, Gmail), they are installed on the Chinese version of MIUI or HyperOS.
Global versions for Europe, Russia and other countries are Google certified and have a full set of pre-installed applications. However, enthusiasts often buy cheaper Chinese versions and install global firmware on their own, a process called “flashing”.
The main differences of the versions are as follows:
- 🌏 Regional restrictions: Some frequencies may not work in the Chinese version 4G/5G (Band 7, Band 20), important for operators of communication in Russia and CIS.
- 🔔 Notifications: The aggressive energy saving system in Chinese firmware often “kills” the background processes of messengers, which can cause messages to arrive with a delay.
- 🛒 Chinese versions contain a lot of local applications (Baidu, Weibo), which are useless outside of China and take up space.
⚠️ Warning: Self-flashing from Chinese to Global (or vice versa) often requires unlocking the bootloader, which can lead to loss of warranty and risk turning the phone into a brick if you make an error.
If you're not sure about your own abilities, you'd better choose a device with a factory-made global firmware, and there's usually a sticker on the box that says Global Version and an Android logo.
Update and support capabilities for devices
Xiaomi’s update policy has become more generous in recent years, with flagship models now receiving 3-4 major Android updates and up to 5 years of security updates, meaning that the top smartphone purchased today will be relevant until 2028-2029.
The update process is automatic. The system itself checks for a new version of HyperOS or security patches. However, sometimes the notification does not come, in which case you can check for updates manually through the Settings menu → About Phone → System version.
☑️ Checklist before system update
There are three update branches: Stable (stable), Beta (test) and Developer (developers), and the average user is strongly advised not to install Beta versions, as they can contain critical errors that affect the autonomy and heating of the device.