The surprise of HyperOS 4: 27.2% more free memory on Xiaomi

HyperOS 4 promises to free up more memory without adding RAM to the phone. Xiaomi claims that its system achieves 27.2% more available memory than HyperOS 3 after eight hours of use, thanks to internal changes in resource management. The information comes from Xataka, citing Mundo Xiaomi, and should be interpreted as a result of the manufacturer’s internal tests, not as an identical guarantee for all devices.

What really changes with HyperOS 4

How does Xiaomi manage to free up more memory?

The answer matters especially to those who keep their Xiaomi for several years. When a phone accumulates open apps, camera switches, and many hours of activity, the way the system allocates its resources can influence just as much as processor power. HyperOS 4 aims to improve precisely that behavior, even though the phone does not receive more physical RAM.

The first technology is called Memory Preloading, which means memory preloading: the system anticipates the resources that an action will need before it finishes executing. Xiaomi uses the camera as an example, since it can prepare the needed memory to display an image or switch lenses more quickly.

The second is Precision Workload Scheduling, a system of precise task organization that analyzes instructions executed in typical situations to eliminate redundant operations. HyperCore, the set of internal technologies where these improvements are integrated, also includes its own runtime environment for Xiaomi apps to reduce the resources they consume.

The 27.2% figure comes from Xiaomi’s internal tests comparing HyperOS 4 with HyperOS 3 after eight hours of continuous use. That does not mean every user will see exactly that percentage on their phone: the result can vary depending on the device and usage conditions. The proper reading is more cautious: the system aims to better manage the available memory.

What new features will the user see on the screen?

Not everything remains hidden inside the system. Xiaomi states it has rewritten apps such as Gallery, Weather, and the launcher, which is the screen from which the phone’s main apps and functions are accessed. It also claims that the time needed to analyze 10,000 photos was reduced by 90% in its tests.

HyperOS 4 also debuts Soft Light Glass, an interface design based on transparencies and lighting effects. The lock screen allows adjusting the size and position of the clock, while artificial intelligence tools can transcribe recordings and organize notes.

There is a nuance that should remain in view: Xiaomi does not guarantee that all visual and AI functions are available on all devices, languages, and regions. Therefore, the experience of a Xiaomi 17 in China does not have to match that of a compatible Xiaomi sold with European software. The fine print matters.

When will it arrive on each Xiaomi phone

Which models get the update first?

For the reader wanting to know if their phone is close to receiving HyperOS 4, the first reference is the Chinese calendar. The stable rollout began on October 15 in China, after two months of testing, and is carried out progressively.

• The first compatible models include the Xiaomi 17, Xiaomi 17 Pro, Xiaomi 17 Pro Max, and Xiaomi 17 Ultra.
• The REDMI K90, REDMI K90 Pro Max, REDMI K100 Pro, and REDMI K100 Pro Max also appear.
• The tablets Xiaomi Pad 8 and Xiaomi Pad 8 Pro are part of the first group.
• By October 31, distribution is expected to start for the Xiaomi 17T and Xiaomi 17T Pro.
• The Xiaomi 15 family and REDMI K80 are scheduled for their turn before November 15.
• In December, the Xiaomi 14, MIX Fold 3, and Xiaomi 13, among other models, appear.

The dates belong to the China calendar and do not automatically correspond to a date for Spain. Also, the fact that a model appears in the plan does not mean all users receive it at the same time, because Xiaomi has indicated that the rollout is progressive.

What does it mean that it also arrives on older phones?

The case of the Xiaomi 13 concentrates much of the interest. That phone was introduced in China in December 2022 and is scheduled to receive HyperOS 4 when it approaches four years old. For those still using one, the news may be more relevant than any visual effect: it allows checking if a system update can extend the feeling of smoothness.

The reach outside China is still more limited. Users with a device compatible with the Chinese version may receive the update following that market’s schedule, always subject to model and gradual rollout. In Europe, Xiaomi has been distributing beta versions since September, that is, test versions, for certain phones with global and European software, including the Xiaomi 17, Xiaomi 15, and Xiaomi 15 Ultra.

This move confirms that the international version is in preparation, but the source does not offer an official date for the stable launch in Spain. It is important not to confuse a European beta with the final update: the former serves to test the system before general distribution and may not include all final features.

How to check its arrival and assess the improvement

What should the user do when HyperOS 4 appears?

Checking does not require changing phones or installing external apps. The user should review the system update section of their phone and wait for Xiaomi to enable the download for their model and region. The source does not specify an exact menu path or a stable date for Spain, so it would not be correct to present a specific route as universal.

• Open the phone’s system update section.
• Check if an update identified as HyperOS 4 appears.
• Verify that the model matches one of the devices listed in the corresponding schedule.
• If only a beta version appears, remember it is test software and not the final stable distribution.
• If nothing appears, it does not necessarily mean the phone is excluded: Xiaomi is performing a progressive rollout and availability depends on the model and region.

How to know if the memory promise is noticeable?

The 27.2% figure should not become a rigid expectation. It is a laboratory comparison from the manufacturer, obtained after eight hours of continuous use, not a universal measurement for every phone. To assess the change, the user can observe if apps remain active longer, if the camera switches lenses more quickly, or if the system responds faster.

• It is affected if their model appears in Xiaomi’s schedule and the update is offered for their region.
• It is in testing phase if they receive a beta version on a device with global or European software.
• It has no confirmed arrival if their model is not listed in the plan cited by the source.
• It cannot demand the 27.2% as an exact result, because Xiaomi acknowledges that figures come from internal tests and can vary.
• It should not assume having all functions if using another language, region, or device since visual and AI tools may vary according to those conditions.

The best way to read this update is to separate promises from verifications. The 27.2% describes free memory, not added RAM; the 90% corresponds to the analysis of 10,000 photos in Xiaomi’s tests, not necessarily the time each Gallery app will take; and the arrival of the Xiaomi 13 shows the company considers devices almost four years old, but does not guarantee all older models receive the same treatment.

Before installing any version, it is advisable to keep the phone updated with the available version, periodically review app permissions, and keep backups of photos, notes, and recordings. If the system shows repeated errors, the update fails, or the phone becomes unstable, it is wise to consult official Xiaomi support or a technical service rather than installing files from unknown sources.

HyperOS 4 arrives with a concrete promise: to improve memory management and keep part of Xiaomi’s catalog relevant for longer. The stable rollout has already started in China, the Xiaomi 13 appears among the planned models, and Europe is still waiting for a definitive date. Until the update arrives in each region, the 27.2% figure should be understood as an internal Xiaomi result, not as an automatic guarantee for all phones.