Redmi K90 Ultra set for big upgrades, including a 165Hz screen and 8000mAh battery

The Redmi K90 Ultra, which will probably arrive in China in a few months, is already being discussed in the rumor mill after Redmi unveiled the K90 and K90 Pro Max in October. Digital Chat Station‘s early information suggests significant improvements over the current models, providing a first glimpse of Xiaomi’s potential lineup expansion. The information provides a first look, and as launch draws near, more clarity is probably in store.

Redmi K90 Ultra key specs

The Redmi K90 Ultra is anticipated to include a 6.8-inch LTPS OLED display with a 1.5K resolution and a quick refresh rate of 165 Hz, according to the leak. The device may include a metal central frame for increased durability, and the screen is rumored to feature rounded corners.

Strong water protection is also anticipated, which is consistent with the stronger resistance ratings of more recent high-end models. An improved audio system and an ultrasonic in-display fingerprint scanner are two more anticipated enhancements.

Battery capacity appears to be one of the most notable features. According to rumors, the phone would have a battery of about 8,000 mAh, which is a significant improvement over the K90 Pro Max and earlier Ultra models. Additionally, a specialized high frame rate software layer that could improve the overall performance profile—particularly for gaming—is hinted at by the tipster.

According to reports, the MediaTek Dimensity 9 series chipset powers the Redmi K90 Ultra. This might be the Dimensity 9500 Plus, which is expected to be released in 2026. The leak characterizes the Ultra as a performance-focused model, implying that photography may continue to be at a respectable but not flagship-leading level, even though camera details have not been disclosed.

The K80 Ultra’s June 2025 release cycle is anticipated to be followed by the K90 Ultra. The K90 Ultra might make its Chinese debut around the middle of 2026 if Xiaomi sticks to this schedule. It’s possible that a modified K90 Ultra may go on sale as a Xiaomi flagship worldwide.