Owners of Xiaomi, Redmi and POCO devices often encounter the acronym MIUI when they first turn on a gadget or when they upgrade their system. It's not just a set of icons, but a deeply redesigned operating environment that defines the entire user experience. Understanding how this shell works unlocks the potential of a smartphone by one hundred percent and avoids the typical mistakes of beginners.
Many users mistakenly believe that MIUI is a separate operating system competing with Android. In fact, it is a software add-on based on the kernel of the “green robot”. Xiaomi developers have radically changed the visual style and logic of the standard Android, adding hundreds of unique features that are not in “pure” form.
In this article, we will take a closer look at the interface architecture, its evolution and its practical applications, and you will learn why the MIUI shell requires a special approach to configuration and how to manage it correctly for maximum performance.
The origin and nature of the MIUI interface
MIUI stands for MI User Interface, which literally means “Mi user interface.” The story of the project began long before the release of the first smartphone under the Xiaomi brand. Initially, enthusiasts created custom firmware based on Android for popular then devices HTC and Samsung, seeking to fix the shortcomings of the stock system and add popular features.
A key feature of the early version was the introduction of weekly updates on Fridays, a tradition that has been around for years, allowing thousands of users to test new features and report bugs, and has created an ecosystem where community opinion has a direct impact on product development, and MIUI has now evolved into a powerful tool with its own app store, cloud service, and deep system integrations.
⚠️ Note: Despite deep integration, MIUI It is dependent on the Android version, which means that some features may not work properly on older versions of the kernel or require specific drivers.
It's important to understand that MIUI is replacing standard Google applications at the system level. Instead of the usual launcher, gallery and call, you get branded solutions from Xiaomi. This ensures uniform design, but sometimes creates difficulties for those who are used to the logic of running a "pure" Android from Google Pixel or Motorola.
Key differences from standard Android
The main visual difference is that there is no default app menu: In classic Android, all installed programs are on a separate list, and on the desktop there are only widgets and shortcuts. MIUI uses the principle of iOS: all icons are directly on desktops. This makes navigation with one finger easier, but can create visual noise with a large number of programs.
System settings have also undergone major overhauls, with the menu becoming more compact and logical for the mass user, but there is also a potential problem: some important features available in the runoff can be hidden or renamed, such as application resolution and background activity management in Xiaomi implemented more aggressively to save charge.
- 📱 Control Center: in the new versions, it is divided into two swipes – the notification curtain on the left and the switches on the right, which copies the logic of iOS.
- 🔒 Security: Built-in Security app brings antivirus, memory cleanup, traffic control and permission management together in one place.
- 🎨 Theme: Theme shop MIUI allows you to change not only wallpaper, but also system fonts, sounds, icons and even the style of the lock menu.
Another important aspect is the notifications, which are grouped differently in MIUI, and the mechanisms for freezing background processes are more rigid, which means that messengers may not arrive on time unless they are set up correctly, and the user needs to manually allow auto-start for important applications so that the system does not kill their process for the sake of saving battery life.
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Always add important messengers to the “No Limits” list in your battery settings, otherwise messages may come with a delay.
Evolution of versions: from MIUI 1 to the present day
The skin has been a long and thorny journey, with the early versions relying heavily on iOS design, copying many visual elements, the release of MIUI 10 has seen a significant leap in optimization and animation speed, redesigned design, added full-screen gesture mode, which has become the industry standard.
MIUI 12 was a revolutionary visualization, and Super Wallpapers, a live wallpaper with planets that scaled from space to the surface, also introduced privacy protections that showed which apps accessed the microphone or camera and when, but this version also got a lot of bugs that were patched in subsequent patches.
Modern versions, such as MIUI 13 and 14, focus on stability and lightness. Developers have worked to optimize code by reducing the space occupied by the system and speeding up the launch of applications.
| MIUI version | Year out | Key feature | Base (Android) |
|---|---|---|---|
| MIUI 10 | 2018 | Full-screen gestures | Android 8-9 |
| MIUI 11 | 2019 | Design and minimalism | Android 9-10 |
| MIUI 12 | 2020 | Privacy Protection, Super Wallpapers | Android 10-11 |
| MIUI 13/14 | 2021-2023 | Optimization, widgets, live wallpaper | Android 11-13 |
Why does version numbering sometimes get confused?
Setup and personalization of the system
Customization flexibility is something MIUI loves. Users can change almost any aspect of a smartphone without getting superuser permissions (Root). Start with installing third-party themes. Unlike Android, where the themes only change wallpaper, here the entire visual style of the system changes.
Access to advanced settings often requires activating developer mode, and this is done by repeatedly clicking on the build number in the About menu, and then a new menu will appear in the "Additional" section, where you can adjust the animation speed, USB debugging and other system settings.
☑️ Basic setting of the new smartphone
The second space section, which allows you to create a second isolated profile inside a smartphone, is like two different phones in the same case, with different Google accounts, apps and photos, and you can quickly switch between your main profile (for work, for example) and the second (for personal use) through a password or fingerprint.
⚠️ Warning: When you reset your settings to factory data is deleted from both spaces. Be sure to back up important information before formatting.
Optimization and management of resources
MIUI is known for its aggressive memory management, and MIUI Optimization automatically closes the background to extend battery life, on the one hand, it performs well in battery tests, and on the other hand, it can cause the applications to stop working in the background.
To address this, there is an Advanced Settings menu inside the Security app, where you can manually tell the system which apps you should not close, and it is also recommended to turn off MIUI Optimization from the developer menu if you plan to install Google Play services on Chinese firmware versions or use specific modifications.
Battery management also includes performance profiles. In the battery settings, you can choose Savings, Balance or Performance. In high performance mode, the processor runs at maximum frequencies, which is useful in games, but quickly discharges the battery and heats the case.
- 🔋 Optimize at night: The system learns your charging habits and pauses the process by 80% to finish up to 100% just by the time you wake up.
- 🧹 Memory Cleanup: The built-in tool effectively frees up RAM, but often closes down the necessary processes, requiring applications to be restarted.
- 📶 Game Turbo: A special mode that blocks notifications, frees up resources and improves touchscreen response in games.
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Aggressive energy savings in MIUI are a double-edged sword: the battery lives longer, but notifications may not come without manually configuring exceptions.
Typical problems and their solution
Despite the functionality, users face a number of specific problems, one of the most common is advertising in system applications. In some regions (for example, India, Russia, Europe), standard applications such as Explorer, Music or Downloads may have advertising content, and fortunately, it can be turned off.
To do this, you need to go to the settings of each system application and find the "Receive recommendations" or "Show ads" switch. There is also a global one in the security and privacy settings. Disabling advertising makes using the system much more comfortable.
The way to disable advertising in the conductor:
Conductor → Settings (three stripes) → About the programme → Turn off the advertsAnother common problem is time desynchronization or Wi-Fi issues after an upgrade, often solved by resetting network settings or re-authorizing your Mi Account. If the problems are systemic, you may need to completely flash the device through your computer using the Mi Flash Tool utility.
⚠️ Before flashing or resetting settings, be sure to unlock the bootloader officially through the Mi Unlock site, otherwise the phone will turn into a brick».
The Future of the Shell and the Transition to HyperOS
Xiaomi has now announced a gradual shift away from the MIUI brand in favor of the new HyperOS operating system.This is not just a renaming, but a deep reworking of the architecture.The new system is built on the Linux kernel and Xiaomi Vela, which allows for a unified environment for smartphones, cars and smart home devices.
The transition period has already been launched for flagship models, with MIUI 14 users soon getting upgraded to a new platform, with the main goals of the transition being to reduce resource consumption, speed up work and integrate more closely with the ecosystem, but the logic of the work and many of the familiar features will remain recognizable to MIUI users.