Xiaomi Cool: debunking myths about the cooling system in Xiaomi smartphones

If you've ever held a flagship Xiaomi smartphone while playing intensely or shooting 4K video, you've probably noticed how fast it heats up. Manufacturers have been struggling with this problem for a long time, and Xiaomi has its own solution, Xiaomi Cool technology. But what is it really: a revolutionary cooling system, a marketing ploy, or just a beautiful name for standard components?

In this article, we'll look at how Xiaomi Cool works, what technologies are behind the name, and whether it really saves smartphones from overheating. You'll learn what models it's used in, how to check for it in your device, and what to do if the phone warms up despite all the promises of the manufacturer. And also compare Xiaomi Cool with similar solutions from other brands to see how effective it is against the competition.

What is Xiaomi Cool: Understand the terms

To start with, Xiaomi Cool is not a single physical detail, but a comprehensive solution for heat management in Xiaomi smartphones, which includes both hardware components (graphite plates, heat tubes, copper radiators) and software algorithms (constraining performance during overheating, optimizing energy consumption).

It's important to understand that Xiaomi Cool is not a proprietary exclusive development, but it's essentially a marketing designation for the standard cooling methods that all smartphone manufacturers use.

  • ๐Ÿ”ฅ Multi-layered graphite plates are thin sheets of graphite that divert heat from the processor and battery to the housing where it dissipates.
  • โ„๏ธ Vapor chambers are hollow copper tubes with liquid inside that transfer heat from hot zones to cold ones (similar to a PC cooling system).
  • ๐Ÿค– AI-Optimization is a software algorithm that analyzes the load on the processor and automatically reduces performance if the temperature exceeds safe values.
  • ๐Ÿ”‹ Dynamic clock control โ€“ when overheating, the smartphone temporarily reduces the processor frequency to reduce heat generation.

Xiaomi often mentions the term LiquidCool in the documentation, a trademark that hides a combination of heat pipes and graphite plates. For example, the Xiaomi 12 Pro uses LiquidCool 2.0, and the Redmi K50 Gaming uses LiquidCool 3.0 with an increased heat sink area.

๐Ÿ“Š How often does your Xiaomi smartphone overheat?
Never.
Only in games.
When charging and playing
He's always warming up.
I don't know.

Which Xiaomi smartphones have Cool technology?

Xiaomi Cool technology (or its variations called LiquidCool, Loop LiquidCool) is not used in all models.

  • ๐Ÿ“ฑ Flagship Series: Xiaomi 12/13/14 Pro, Mi 11 Ultra, MIX Fold 2/3.
  • ๐ŸŽฎ Gaming smartphones: Black Shark 4/5 Pro, Redmi K50/K60 Gaming.
  • โšก Models with powerful processors: POCO F4/F5 GT, Redmi Note 12 Turbo.

But in low-end devices (for example, Redmi 10A or POCO M5) you will not find it โ€“ there the cooling is limited to a simple aluminum radiator or graphite film.

Smartphone modelType of cooling systemArea of heat sinkMax. temperature under load
Xiaomi 13 UltraLoop LiquidCool4129 mm2~42ยฐC (in games)
Redmi K60 ProLiquidCool 3.03,500 mm~45ยฐC
POCO F5 ProLiquidCool 2.03012 mm2~47ยฐC
Black Shark 5 ProDouble heat pipes + fan5000+ mm2~38ยฐC

Note that even in top models Xiaomi Cool does not guarantee a complete absence of heat. For example, Xiaomi 13 Ultra when shooting video in 8K can be heated to 45 ยฐ C, and Black Shark 5 Pro with an active cooler keeps the temperature at 38-40 ยฐ C. This is normal โ€“ complete absence of heat at high loads is physically impossible.

๐Ÿ’ก

To check if your smartphone has LiquidCool, look at the official specifications on the Xiaomi website or use the CPU Throttling Test app (showing the processor temperature and the presence of throttling).

How Xiaomi Cool Works: Hardware and Software Parts

The cooling system in Xiaomi smartphones consists of two key components:

  1. The hardware is the physical elements that remove heat:
  2. The software part - control algorithms:

For example, the Xiaomi 12S Ultra uses Loop LiquidCool, a closed-loop liquid-cooled system where heat is transferred through the tube by evaporating and condensing fluids (like a refrigerator). Black Shark gaming smartphones also have an active cooler, a small fan that is turned on at high loads.

What happens if you block throttle?
If you turn off the performance restriction (for example, through an engineering menu or root), the smartphone will work at a maximum, but the temperature can exceed 60 ยฐ C. This is fraught with: - Automatic shutdown due to overheating. - Battery degradation (at 50 ยฐ C + capacity falls 2 times faster). - Risk of damage to the processor (especially in the Snapdragon 8 Gen 1/2, which warm up stronger than others).

Xiaomi Cool vs. Competitors: Who is the Best Cooler?

Xiaomi is not the only manufacturer that uses advanced cooling systems. Letโ€™s compare Xiaomi Cool with its counterparts from other brands:

BrandCooling technologyFeaturesExample of model
SamsungVapor ChamberIt uses graphite plates + steam chamber, but without active cooling. The Galaxy S23 Ultra has added a layer of thermogel.Galaxy S23 Ultra
ASUS (ROG Phone)AeroActive CoolerActive cooler with fan + additional ports for connecting external radiators.ROG Phone 7
OnePlusCryo-Velocity Vapor Chamber5-layer steam chamber with an increased area (in OnePlus 11 - 9140 mm2).OnePlus 11
XiaomiLoop LiquidCoolClosed-loop liquid cooling, and a fan is added to Black Shark.Xiaomi 13 Ultra

Xiaomi Cool is inferior in efficiency to ASUS ROG (due to active cooler) and OnePlus (due to the larger steam chamber area), but bypasses Samsung by using liquid cooling in top models. However, in real tests, the difference often does not exceed 3-5 ยฐ C, it all depends on the specific processor and load.

๐Ÿ’ก

If you want a smartphone that doesnโ€™t warm up in games, look for models with active cooling (fan) โ€“ for example, Black Shark 5 Pro or ASUS ROG Phone 7. Passive systems (graphite + steam camera) are less efficient at long loads.

Why is the smartphone hot despite the Xiaomi Cool?

Even with Xiaomi Cool technology, your smartphone can overheat.

  • ๐Ÿ”ฅ Too high load: modern games (Genshin Impact, Call of Duty Mobile) or video shooting 8K Make the processor work at its limit.
  • ๐Ÿ”‹ Charging. + Playing at the same time: fast charging (especially) 120W+) + load = double-heating.
  • โ˜€๏ธ External conditions: direct sunlight, high ambient temperature (above 30)ยฐC).
  • ๐Ÿ› ๏ธ Wear of thermopaste: over time it dries out, and the heat sink deteriorates (relevant for smartphones older than 2-3 years).
  • ๐Ÿฆ  Viruses or background processes: Some applications (especially mining or poor optimization) can load a processor at 100 times%.

If your smartphone is warming for no apparent reason (such as simple or light tasks), it may indicate:

  • Failure of the battery (blown, degradation).
  • Problems with the motherboard (short circuit, damaged tracks).
  • Firmware failure (especially after unofficial updates).

Remove the cover (deteriorates the heat sink)|Close background annexes|Turn off fast charging during games|Use an external cooler (for game models)|Update the firmware to the latest version-->

โš ๏ธ Note: If the processor temperature exceeds 60ยฐC to simple (checked through AIDA64 or CPU Monitor, immediately turn off your smartphone and contact the service center.ยฐC may cause irreversible damage to the battery or processor.

How to improve the cooling of the Xiaomi smartphone: practical tips

If your smartphone is warming up, but there are no hardware faults, try these methods:

  1. Optimize the load: ๐ŸŽฎ In games, reduce the graphic settings (for example, in the PUBG Select โ€œBalancedโ€ Mode instead of Mobile "HDR"). ๐Ÿ“น When shooting video, limit the resolution to 4K/30fps instead 8K.
  2. Use external accessories: ๐ŸงŠ Smartphone coolers (such as Black Shark FunCooler Pro) reduce temperatures by 5-10ยฐC. ๐Ÿ›ก๏ธ Aluminum cases (but less effective than active cooling).

Set up the firmware:

For models with an unlocked bootloader, you can install a custom core (for example, FrancoKernel), which better manages throttling.

Also worth checking is the power saving settings. Some MIUI firmware has a hidden overheating performance limit option that can be turned off via the engineering menu (#4636##). However, this is not recommended - it is better to let the smartphone reset the frequencies a little than fail.

๐Ÿ’ก

If you play on your smartphone a lot, install the Game Turbo app (built into MIUI) and turn on Performance mode, which optimizes resource allocation and monitors temperature.

Myths and truths about Xiaomi Cool: debunking misconceptions

There are a lot of myths surrounding Xiaomi Cool technology, and let's look at what's true and what's marketing.

โš ๏ธ Warning: If you see an ad claiming that Xiaomi Cool "completely eliminates heat" is a hoax. No cooling system can completely eliminate heat at high loads. Physics is inexorable: the energy consumed by the processor is partially converted to heat.

MythReality.
Xiaomi Cool only works in games.The technology is always active, but is especially noticeable at high loads (games, video, charging).
"Graphite plates wear out over time."Graphite does not degrade, but thermopaste can dry in 3-5 years.
LiquidCool is a liquid inside a smartphone that can leak.The liquid is in a sealed tube and does not come into contact with electronics.
Xiaomi Cool is impairing productivityYeah, but only when you're overheated, there's no throttling in normal conditions.

Another common misconception is that โ€œXiaomi Cool is only in flagships.โ€ In fact, even some mid-budget models (like the Redmi Note 12 Pro+) come with a simplified version of this technology, graphite plates without a steam chamber.

FAQ: Frequent questions about Xiaomi Cool

Can I replace the heat paste in the Xiaomi smartphone?
Theoretically, yes, but it's extremely risky. Thermopaste replacement requires: Disassemble the smartphone (the risk of damage to the plumes); Carefully remove the old paste from the processor and graphite plate; Apply a new thermopaste (the Arctic MX-4 or Thermal Grizzly Kryonaut is recommended); however, in most cases, the increase from the replacement is minimal (1-3 ยฐ C), and the risk of damaging the device is high. If the smartphone is warranty, you better contact the service.
Is it true that Xiaomi Cool reduces battery life?
No, it's the opposite. The cooling system prevents the battery from overheating, which is one of the main reasons for its degradation. However, if the smartphone is constantly running at its limit (for example, in charging games), even the Xiaomi Cool will not save from wear. The optimal temperature for Li-ion batteries is 20-30 ยฐ C.
How to check if Xiaomi Cool works in my smartphone?
There are a number of ways: ๐Ÿ“Š Install the app CPU Throttling Test โ€“ it will show whether performance decreases when heated. ๐ŸŒก๏ธ Use it. AIDA64 Monitoring the temperature of the processor under load. ๐Ÿ” See the official specifications of your model on the Xiaomi website - there should be a mention of LiquidCool or Xiaomi Cool.ยฐC, the system's working fine.
Is it worth buying a smartphone with Xiaomi Cool if Iโ€™m not playing?
If you don't load your smartphone with games or video, the difference between models with and without Xiaomi Cool will be minimal. However, even in everyday tasks (such as watching videos or navigating for long periods), the cooling system helps: Reduces heat when you charge fast, prevents accidental slowdowns due to overheating, prolongs battery life, so if you choose between two similar models, you'd better take the one that has LiquidCool.
Can you turn off Xiaomi Cool to get the most performance?
Technically, yes, but it's not recommended. You can turn off throttling by: Using an engineering menu (#4636## โ†’ Battery Information โ†’ Turn off Performance Limitation) with root rights and apps like Kernel Adiutor. However, the consequences can be serious: CPU temperatures will rise above 70ยฐC. A smartphone can suddenly turn off for protection. The battery will degrade 2 to 3 times faster.