When choosing a new smartphone from Xiaomi, the user inevitably faces the question of the necessary amount of internal memory and RAM. The market offers dozens of modifications, where the cost difference between versions can be several thousand rubles, but the final performance and comfort life will be radically different. Incorrectly selected configuration often leads to a rapid degradation of the user experience: the phone begins to “brake”, applications fly out, and the system requires constant manual cleaning of the cache.
In this article, we will discuss in detail how much GB is really needed for everyday tasks, games and professional use in the MIUI ecosystem or the new HyperOS. We will not rely on marketing slogans, but rather look at the technical side of data storage, the operation of compression algorithms and the impact of storage occupancy on read / write speed. Understanding these nuances will help you save money or, conversely, avoid buying a device that will become obsolete in six months.
It is important to immediately determine your priorities: are you a gamer, a mobile photographer or a regular user of instant messengers? It depends on what type of memory will become a “narrow neck” in your system. RAM is responsible for multitasking, allowing you to keep dozens of applications open, while embedded memory (ROM) is a warehouse for all your files, operating system and installed programs.
Differences between RAM and ROM in Xiaomi smartphones
The first step to making a smart choice is to understand the difference between the two main types of memory: RAM is a temporary storage that is cleared when a device is turned off. It is the volume of the storage that determines how many applications can run in the background without rebooting. Xiaomi smartphones use LPDDR4X standards and faster LPDDR5, which also affects the overall response rate of the interface.
Built-in memory (ROM or ROM) is designed for long-term data storage. Modern flagships and mid-segment models are equipped with UFS 3.1 or UFS 4.0 drives. The speed of writing and reading data on such drives is several times faster than on older eMMCs, which is critical for fast application installation and downloading "heavy" games. If you ask how many GB the system takes, the answer will vary from 15 to 30 GB depending on the firmware version and preinstalled software.
Why is there less memory than claimed?
And the company is also actively implementing virtual memory expansion technology, which allows you to reserve some of the internal storage for RAM, and while it helps to keep more applications in the background, the speed of virtual RAM is still lower than with physical RAM, so you should not rely on this option alone when choosing a model.
Minimum Requirements: Should I Take 64GB in 2026?
Modifications with 64 GB of internal memory are now positioned as a budget solution for one day. After installing the system, mandatory security updates and the basic application package (WhatsApp, Telegram, Yandex, Banks), the user is left at best 35-40 GB of free space, which is critically small for the modern user.
The main problem with small volume is not so much storage of photos as the work of the application cache. Social networks and messengers tend to grow to giant sizes. For example, the cache of Telegram or TikTok can take 10-15 GB in a few months of active use. When the drive is filled by more than 85-90%, the speed of writing data to UFS chips drops, which causes noticeable hanging of the MIUI interface.
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If you still bought the 64GB version, clean your messenger cache regularly through your storage settings and transfer your photos to the cloud to free up critical gigabytes.
Who would do that? Except for children, for older people who use their smartphones only for calls and simple tasks, or as a second working device. For a basic smartphone in 2026, 64 GB is no longer a comfortable option, but a compromise option that requires constant control of space.
- 📉 Pros: Lowest price, availability of used devices.
- ⚠️ Cons: Fast filling, inability to install heavy games, risk of slowing down the system.
- 📸 Limitations: Shooting videos in 4K will be quickly exhausted (remainder).
- 🔄 Updates: Major Android Updates May Just Not Get In Without Deleting Data.
Golden mean: performance analysis at 128 and 256 GB
The most popular de facto standard for mid-range and flagship smartphones is the 8/256 GB bundle. This amount of internal memory allows you to feel comfortable with the average user for 2-3 years. You can install a dozen heavy games, store thousands of photos in high resolution and not worry about the place.
Versions with 256 GB often come with faster types of drives. While budget 64 GB can be a slow eMMC or initial UFS 2.2, 256 GB models are more common UFS 3.1. This provides lightning-fast load levels in games like PUBG Mobile or Genshin Impact, as well as fast work with files when connected to a PC.
But there's a nuance here, too: If you're actively shooting 4K 60fps, 256GB can fill up in 6-8 months, and one minute of that can weigh about 400-600MB. You should look at 512GB models or use cloud services.
| Parameter | 64GB | 128GB | 256GB |
|---|---|---|---|
| Free after installation of OS | ~35 GB | ~100GB | ~220 GB |
| Number of photos (12 MP) | ~5,000 pcs. | ~15,000 units. | ~30,000 units. |
| Time for 4K 60fps video | ~1 hour | ~3 hours | ~6 hours |
| Recommended period of use | 1 year | 1.5-2 years | 2-3 years |
The impact of RAM on MIUI and HyperOS
Xiaomi shells are known for their functionality, but also for resource requirements. MIUI and the HyperOS that replaced it hold in memory a lot of system processes to ensure smooth animations and widgets. The minimum comfortable amount of RAM is now considered 6 GB, but for full work it is better to focus on 8 GB and above.
With a RAM of 4-6 GB, the system will aggressively unload background applications from memory, which means that when switching between the navigator and the messenger, the application will start again (cold start), which consumes more CPU and battery power. The 12 GB and 16 GB RAM versions allow you to forget about rebooting browser tabs and games for a few days.
⚠️ Note: Do not chase record values in 16-24 GB RAM, If you don't use your smartphone for mobile gaming or for heavy paperwork, in normal scenarios (social media, video, web) the difference between the two is that you're not using your smartphone. 8 and 12 GB is practically not noticeable, and battery consumption in standby mode can be higher due to the features of power management of large amounts of memory.
Xiaomi’s flagship models (series 13, 14, 15) are equipped with LPDDR5X memory, which provides bandwidth up to 8,500 Mbps and higher. This directly affects the speed of opening “heavy” applications and the work of artificial intelligence in the camera. In the budget segment (Redmi Note) LPDDR4X is more common, which is the norm, but it works slower.
Memory for gamers: how much you need for heavy games
Mobile gaming is the most demanding use case, and modern games like Genshin Impact, Honkai: Star Rail, or Warzone Mobile require not only a powerful processor, but also a significant amount of free memory, and once installed, the weight of one such game can exceed 30-40 GB.
For a comfortable game without constant loading of textures and departures, a free memory reserve is necessary. If the drive is filled "to the end", the memory controller cannot work effectively with the clipboard, which leads to friezes (twitching) even on a powerful processor. Gamers are strongly advised not to take versions with 64 or 128 GB if you plan to install more than two "heavy" projects.
☑️ Checklist for gamer when choosing Xiaomi
The optimal choice for the player in 2026 will be a bundle of 12/256 GB or 12/512 GB. This will keep the game installed, have a margin for cache and updates, and also use streaming services or Discord in parallel without downloading the game from memory.
- 🎮 Genshin Impact: Requires ~40GB + cash.
- 🏎️ Car simulators: Often borrowed 10-15 GB.
- 📦 Updates: Patches can weigh 2-5 GB, I need a margin.
- 🚀 Speed: UFS 4.0 reduce the loading time of levels on 30-40%.
Cost comparison: should you pay for gigabytes?
The price difference between Xiaomi and Redmi versions with different memory capacity is usually between 2 and 5 thousand rubles. At first glance, the overpayment seems significant, but if you divide this amount by the life of a smartphone (2-3 years), the daily cost of ownership increases slightly, but you get a margin of performance and no stress due to space shortage.
It is often the case that the 8/256 GB version is cheaper than 6/128 GB, due to the stock or the nature of the component supply. In such cases, the choice is obvious. However, if the overpayment per step up is more than 20-25% of the cost of the device, it is worth considering the feasibility. For example, switching from 256 to 512 GB in budget models can be unnecessarily expensive.
⚠️ Note: When buying the Global version, remember that it may cost more than the Chinese version (CN) Chinese versions of Xiaomi often have richer memory configurations for less money, but require checking support for communication frequencies (Band 7, 20) to work in your region.
A smartphone with more memory is easier and more expensive to sell on the secondary market in a couple of years, and buyers of used equipment are more likely to take devices with a stock, knowing that they do not have to immediately clean the memory.
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The investment in more memory is paid off by a longer comfortable life of the device and a higher residual value on resale.