JAKARTA - Xiaomi is shaking up the smartphone market again by launching the Redmi K90 Max in China. This time, it's not just about the chipset or the big battery - but rather a pretty "out of the box" innovation: an internal cooling fan directly inside the phone body.
This step makes the Redmi K90 Max the first Xiaomi phone to carry an integrated active cooling system, a feature usually only found in niche gaming devices.
This 18.1 mm diameter fan is claimed to be larger than the majority of similar implementations in the industry. Xiaomi designed it with a vertical air intake, the fan blades tilted forward, and a closed air channel with a vortex design to maximize airflow while minimizing turbulence.
In internal testing, the system was able to lower the temperature by 10 degrees Celsius in about 100 seconds. Users can also choose three fan modes with a maximum noise level of 32dB - relatively quiet for the size of an active cooling system.
Interestingly, Xiaomi seems very confident with the durability of this technology. The fan uses full metal bearings and has passed endurance tests for up to 50,000 hours of use. In fact, early buyers before May 5 were offered a fan warranty of up to six years and free cleaning services for life - a strategy that feels like "gaspol without brakes" to attract hardcore gamers.
In terms of performance, the Redmi K90 Max is no joke. This device is powered by the MediaTek Dimensity 9500 chipset, combined with the D2 AI-based discrete graphics chip. This combination is designed to deliver a high-end gaming experience with support for 1.5K resolution and up to 165Hz refresh rate in various games.
To support this performance, Xiaomi also embeds Ultra LPDDR5X RAM and UFS 4.1 storage - the latest standard that ensures data read-write speeds remain fast even in heavy scenarios.
This launch underlines Xiaomi's increasingly serious direction in working on the gaming and high-performance smartphone segment. In the midst of increasingly brutal competition, this "extreme hardware" approach can be a differentiator - even if it still leaves questions about power efficiency and long-term usability.
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