The wait is finally over for mobile gamers and power users. Xiaomi has officially unveiled the REDMI K90 Max, an absolute powerhouse that marks a significant milestone: it is the company’s first-ever smartphone featuring a built-in active cooling fan. Powered by the latest Xiaomi HyperOS 3.1 right out of the box, this device redefines sustained peak performance.
Please note that the REDMI K90 Max is launched exclusively in China. However, global users will not be entirely left in the dark; a similar device (excluding the active cooling fan) is slated to launch globally soon as the Xiaomi 17T Pro.
New Cooling Far
The defining characteristic of the REDMI K90 Max is its aggressive, engineering-first approach to thermal throttling.
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Active Fan Cooling System: The device features a massive 18.1mm diameter fan, which is 6% larger than mainstream competitor solutions. With a vertical air intake design and forward-leaning blades, it pushes an impressive 0.42 CFM of airflow per minute.
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Simulated Vortex Airflow Duct: By reducing path turbulence, this internal duct system achieves a remarkable 78.6% airflow utilization rate.
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Ultra-Quiet & Hyper-Efficient: Despite the mechanical movement, the fan operates at a maximum noise level of just 32dB. Users can toggle between three adjustable fan modes. In its high-speed cooling mode, the system can plummet the device’s internal temperature by 10°C in a mere 100 seconds.
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Built to Last: The fan utilizes an all-metal bearing structure, having passed rigorous 50,000-hour aging tests, while the phone itself retains a robust IP66/IP68/IP69 dust and water resistance rating.
Under the hood, the REDMI K90 Max pairs this cooling prowess with the MediaTek Dimensity 9500, augmented by the D2 AI discrete graphics chip. Memory and storage are equally uncompromising, featuring LPDDR5X Ultra RAM and UFS 4.1 flash storage to support 1.5K resolution and 165Hz concurrent rendering for hundreds of demanding mobile titles.
Technical Specifications Quick List
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Display: 6.83-inch 1.5K Flat Screen, 165Hz ultra-high refresh rate, M10 backlight technology, full brightness DC dimming.
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Battery & Charging: 8550mAh single-cell battery with 100W wired fast charging.
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Audio & Haptics: 1115X symmetrical dual speakers tuned by Bose, 3D ultrasonic fingerprint scanner, and a large X-axis linear motor.
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Connectivity: Equipped with two Xiaomi T1+ signal enhancement chips and a 3-microphone array designed for unobstructed horizontal holding.
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Camera: 50MP 1/1.55-inch main rear sensor.
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Colors: Space Silver, Shadow Black, Sky Blue (featuring an aluminum alloy frame).
Pricing
By mitigating heat—the primary enemy of battery health and sustained framerates—the REDMI K90 Max allows mobile gamers to push hardware to its absolute limits without the typical thermal throttling found in passive-cooled flagships.
Xiaomi is offering an aggressive pricing structure for the Chinese market, with significant subsidies available during the initial sales period.
(Note: Converted USD prices are approximate based on current exchange rates)
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12GB + 256GB: 2999 CNY (~$414 USD) | Subsidized: 2549.15 CNY (~$352 USD)
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16GB + 256GB: 3499 CNY (~$483 USD) | Subsidized: 2999 CNY (~$414 USD)
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12GB + 512GB: 3499 CNY (~$483 USD) | Subsidized: 2999 CNY (~$414 USD)
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16GB + 512GB: 3999 CNY (~$552 USD) | Subsidized: 3499 CNY (~$483 USD)
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16GB + 1TB: 4699 CNY (~$649 USD) | Subsidized: 4199 CNY (~$580 USD)
As a testament to the durability of the moving parts, purchases made before May 5th will include a 6-year fan warranty and lifetime free internal cleaning.
