Xiaomi Redmi K90 Ultra

Brand: Xiaomi
Category: Mobiles

Processor: Qualcomm SM8750-AB Snapdragon 8 Elite
RAM: 12 GB, 16 GB
Storage: 256 GB, 512 GB
Display: 6.83 inches
Camera: Dual Camera
Battery: Si/C Li-Ion 8550 mAh

Our Rating

The overall rating is based on review by our editors

8.6 4.3 1

Design 9 / 10
Display 8 / 10
Camera 9 / 10
Features 8 / 10
Connectivity 9 / 10
Usability 9 / 10
Performance 8 / 10
Battery 9 / 10

Xiaomi Redmi K90 Ultra has been officially released on June 30, 2026.

Product Main Features:

The device measures 162.9 x 77.9 x 8.2 mm and weighs 227 g, with a glass front and aluminum frame. Xiaomi Redmi K90 Ultra supports dual Nano-SIM cards and carries IP68/IP69 protection against dust, high-pressure water jets, and immersion up to 1.5 meters for 30 minutes. A built-in cooling fan is also included for sustained performance during demanding workloads.

Its 6.83-inch AMOLED display offers a 1280 x 2772-pixel resolution and approximately 447 ppi density. The panel supports a 165Hz refresh rate, Dolby Vision, HDR Vivid, HDR10+, PWM dimming, and up to 9500 nits peak brightness under specific measurement conditions. With around a 90.3% screen-to-body ratio, it provides a large and fluid viewing experience.

Performance comes from the 3nm Snapdragon 8 Elite chipset with an octa-core Oryon processor and Adreno 830 GPU clocked at up to 1200MHz. Storage options include 256GB or 512GB with 12GB or 16GB RAM, using UFS 4.1 and offering no memory card slot. Android 16 with HyperOS 3 handles the software, while an under-display optical fingerprint sensor provides biometric security.

Photography is handled by a 50MP main camera with OIS and an 8MP ultrawide camera, supporting 8K recording and up to 960fps slow-motion video. A 20MP front camera handles selfies and 1080p recording. Connectivity includes Wi-Fi 7, Bluetooth 5.4, NFC, infrared, NavIC, and USB Type-C with OTG. The 8550mAh battery supports 100W wired and PPS charging, 22.5W reverse wired charging, while stereo speakers with Dolby Atmos and Bose tuning enhance audio.

Comments

Xiaomi Redmi K90 Ultra - SPECIFICATIONS

General

Model

Xiaomi Redmi K90 Ultra
Released

June 2026
Status

Available

Design

Type Design Type called form factor refers to a mobile phone's size, shape, and style as well as the layout and position of major components of phone. There are three major form factors seen in mobile phones => bar phones, folding phones and sliding phones.

Bar
Dimensions

162.9 x 77.9 x 8.2 mm
Weight

227 Grams

Display

Display Type Display Technology => A number of display technologies and types used in mobile phones => TFT (Thin Film Transistor), IPS (In-Place Switching), OLED (Organic Light Emitting Diode), AMOLED (Active-Matrix Organic Light-Emitting Diode), Super AMOLED (an even advanced version of AMOLED), Resistive Touchscreen (Resistive touchscreens contain two layer of conductive material with a very small gap between them which acts as a resistance), Capacitive Touchsceen (Capacitive touchscreen technology consists of a layer of glass coated with a transparent conductor)

AMOLED
Size

6.83 inches
Resolution

1280 x 2772 pixels
Display Colors Display Colors is refers to the number of different shades of colors that the screen is capable of displaying => 64K colors, 256K colors and 16 million colors, Obviously 16M is highest available range of colors and better than others.

68B colors
Pixel Density Pixel Density (PPI) is refers to the concentration of pixels on a particular display, measured in pixels per inch (ppi). Pixel density is calculated by dividing the diagonal pixel resolution of a display by its diagonal size, higher pixel density better display quality.

447 PPI
Touch Screen

Yes
Features

PWM, 165Hz, Dolby Vision, HDR Vivid, HDR10+, 9500 nits (peak)*

Hardware

CPU The main chipset of the device.

Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M) Qualcomm SM8750-AB Snapdragon 8 Elite
GPU GPU (Graphics Processing Unit) is a single-chip processor designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display, This includes things such as lighting effects, object transformations, and 3D motion.

Adreno 830 (1200 MHz)
RAM (Memory) RAM (Random Access Memory) is a type of computer memory that can be accessed randomly, any byte of memory can be accessed without touching the preceding bytes that allows information to be stored and accessed quickly from random locations. RAM is the most common type of memory found in computer systems, smartphones, tablets and other electronic devices.

12 GB, 16 GB
Internal Storage Internal Storage is a data storage space (flash memory) mostly used in smartphones, tablets and other electronic devices where operating system, apps, music, photos, videos, files and other user data Is stored.

256 GB, 512 GB
Memory Card Slot Memory Card Slot is a special slot for inserting a memory card. Memory cards allow you to expand the phone's built-in memory, A memory card (sometimes called a flash memory card or a storage card) is a small storage medium used to store data such as text, pictures, audio, and video, for use on small, portable or remote computing devices such as mobile phones, mp3 players, digital cameras.

No
Sensors Sensors are electronic components that detects and responds to some type of input from the physical environment. The specific input could be light, heat, motion, moisture, pressure and location, The output is generally a signal that is converted to use in computing systems, a location sensor, such as a GPS receiver is able to detect current location of your electronic device.

Fingerprint (under display, optical), accelerometer, proximity, gyro, compass

Software

Operating System OS => Every computer system run on a base software called Operating System (OS). Operating System controls all basic operations of the computer (such as smartphone, PDAs, tablet computers and other handheld devices). The Operating System allows the user to install and run third party applications (apps), apps are used to add new functionality to the device.

Android 16
User Interface UI or user interface of a device is the look and feel of the on-screen menu system. How it works, its color scheme, how it responds to button presses, all of these things are part of the user interface.

HyperOS 3

Camera

Rear Camera Camera is able to capture photographs and usually videos, The most important characteristics of a camera are the resolution (measured in megapixels), lens focus type (fixed or automatic), higher megapixel cameras are known to capture higher quality photos, but not always a good measurement of the photos quality.

50 MP (wide) + 8 MP (ultrawide)
Image

4320p
Video

8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, 720p@1920fps
Flash Flash Light => There is commonly two types of flash lights are used in camera mobile phones, LED Flash (LED flash offers lower power consumption with drive circuitry that takes up very little room, LEDs can be strobed faster than any other light source), Xenon Flash (xenon flash produces an extremely intense full-spectrum white light for a very short duration)

LED flash
Front Camera

20 MP (wide)

Network

SIM SIM (Subscriber Identity Module) is a small card that contains mobile network subscriber's account information. This allows the phone using the card to attach to a mobile network. The SIM card is most commonly associated with GSM and UMTS mobile networks. Moving a SIM card from one phone to another allows a subscriber to switch mobile phones without having to contact their mobile network carrier. SIM cards can also be used by a phone to store limited amounts of data, such as phone numbers and text messages.

Nano SIM
Dual SIM

Yes

Connectivity

Wi-fi Wi-Fi is a popular wireless networking technology using radio waves to provide high-speed network connections that allows devices to communicate without cords or cables, Wi-Fi is increasingly becoming the preferred mode of internet connectivity all over the world.

Yes
USB

Type-C
GPS GPS The Global Positioning System is a satellite-based radio navigation system, GPS permits users to determine their position, velocity and the time 24 hours a day, in all weather, anywhere in the world, In order to locate your position, your device or GPS receiver must have a clear view of the sky.

Yes
NFC NFC (Near field communication) is a set of standards for smartphones and similar devices to establish peer-to-peer radio communications with each other by touching them together or bringing them into proximity, usually no more than a few inches.

Yes
Wireless Charging Wireless Charging (Inductive Charging) uses an electromagnetic field to transfer energy between two objects. This is usually done with a charging station. Energy is sent through an inductive coupling to an electrical device, which can then use that energy to charge batteries or run the device.

No
Headphone Jack

No

Battery

Capacity Battery Capacity

Si/C Li-Ion 8550 mAh + 100W wired, 100W PPS, PD3.0 + 22.5W reverse wired
Placement

Non-removable

Media

Video Playback

Yes
Video Out

Yes
FM Radio

No
Ring Tones

Yes
Loudspeaker

Yes
Handsfree

Yes

Data

4G LTE 4G LTE bands

1, 3, 4, 5, 7, 8, 19, 28, 34, 38, 39, 40, 41, 42, 48, 66
5G NR Bands

1, 3, 5, 7, 8, 28, 38, 40, 41, 48, 66, 77, 78 SA/NSA
Speed

HSPA, LTE, 5G