Redmi unveiled the Redmi K90 and K90 Pro Max in October, and now the rumor mill is already discussing the Redmi K90 Ultra, which is expected to arrive several months later in China. Early information shared by Digital Chat Station hints at notable upgrades over the existing models, giving an initial picture of how Xiaomi may expand the lineup. The details offer a first glimpse, with more clarity likely as launch approaches.
Redmi K90 Ultra key specifications (rumored)
According to the leak, the Redmi K90 Ultra is expected to feature a 6.8-inch LTPS OLED display with a 1.5K resolution and a fast 165 Hz refresh rate. The screen is said to have rounded corners, and the device may adopt a metal middle frame for added durability.
It is also tipped to support strong water protection, aligning with higher resistance ratings seen on recent premium models. Other expected features include an ultrasonic in-display fingerprint scanner and an upgraded audio system.
Battery capacity is shaping up to be one of the standout elements. The phone is rumored to include an approximately 8,000 mAh battery, a substantial jump over the K90 Pro Max and previous Ultra models. The tipster also hints at a dedicated high frame rate software layer that could enhance the overall performance profile, especially for gaming.
Under the hood, the Redmi K90 Ultra is said to be powered by a MediaTek Dimensity 9 series chipset. This could be the upcoming Dimensity 9500 Plus, which is rumored to launch in 2026. While camera specifications have not been mentioned, the leak describes the Ultra as a performance-focused model, suggesting that photography may remain at a reasonable but not flagship-leading level.
The K90 Ultra is expected to follow the release cycle of the K80 Ultra, which arrived in June 2025. If Xiaomi maintains this timeline, the K90 Ultra may debut around mid-2026 in China. There’s a possibility that a modified version of the K90 Ultra may launch as a Xiaomi flagship globally.
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