Available Variants
Full Specifications
Network
| Technology | GSM / HSPA / LTE / 5G |
| 2G bands | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 |
| Speed | HSPA, LTE, 5G |
| 4G bands | 1, 3, 4, 5, 7, 8, 19, 28, 34, 38, 39, 40, 41, 42, 48, 66 |
| 5G bands | 1, 3, 5, 7, 8, 28, 38, 40, 41, 48, 66, 77, 78 SA/NSA |
Launch
| Announced | 2026, June 30 |
| Status | Available. Released 2026, June 30 |
Body
| Other | Built-in cooling fan |
| Protection | IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) |
| SIM | Nano-SIM + Nano-SIM |
| Build | Glass front, aluminum frame |
| Weight | 227 g (8.01 oz) |
| Dimensions | 162.9 x 77.9 x 8.2 mm (6.41 x 3.07 x 0.32 in) |
Display
| Size | 6.83 inches, 114.5 cm2 (~90.3% screen-to-body ratio) |
| Resolution | 1280 x 2772 pixels, 19.5:9 ratio (~447 ppi density) |
| Type | AMOLED, 68B colors, PWM, 165Hz, Dolby Vision, HDR Vivid, HDR10+, 9500 nits (peak)* |
| Note | * Measured at an isolated spot during video playback only |
Hardware & Software
| OS | Android 16, HyperOS 3 |
| Chipset | Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm) |
| CPU | Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M) |
| GPU | Adreno 830 (1200 MHz) |
Memory & Storage
| Card slot | No |
| Storage Type | UFS 4.1 |
| Internal | 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM |
Main Camera
| Video | 8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, 720p@1920fps, gyro-EIS, HDR10+ |
| Features | Color spectrum sensor, LED flash, HDR, panorama |
| Dual | 50 MP, f/1.7, 24mm (wide), 1/1.55", 1.0µm, PDAF, OIS 8 MP, f/2.2, 15mm (ultrawide), 1/4.0", 1.12µm |
Selfie Camera
| Single | 20 MP (wide) |
| Video | 1080p@30/60fps |
Sound
| Loudspeaker | Yes, with stereo speakers (with Dolby Atmos) |
| Audio Quality | Tuned by Bose Bose 2.1 stereo sound system with a woofer 24-bit/192kHz Hi-Res & Hi-Res wireless audio |
| 3.5mm jack | No |
Connectivity
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band, Wi-Fi Direct |
| Infrared port | Yes |
| USB | USB Type-C, OTG |
| Radio | No |
| NFC | Yes |
| Positioning | GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC, GLONASS |
| Bluetooth | 5.4, A2DP, LE, LHDC 5.0, ASHA, Auracast |
Features
| Sensors | Fingerprint (under display, optical), accelerometer, proximity, gyro, compass |
Battery
| Charging | 100W wired, 100W PPS, PD3.0 22.5W reverse wired |
| Type | Si/C Li-Ion 8550 mAh |
Frequently Asked Questions
Description
Overview & Display
The Xiaomi Redmi K90 Ultra presents a striking design, featuring a glass front and a robust aluminum frame. Its IP68/IP69 rating offers exceptional dust and water resistance, capable of withstanding immersion in up to 1.5 meters of water for 30 minutes, alongside protection from high-pressure water jets. The expansive 6.83-inch AMOLED display boasts an impressive 90.3% screen-to-body ratio, promising a truly immersive viewing experience. With a resolution of 1280 x 2772 pixels and a vibrant 165Hz refresh rate, visuals are fluid and detailed, enhanced further by Dolby Vision, HDR10+, and HDR Vivid support, reaching a peak brightness of 9500 nits under specific video playback conditions.
Powering the Xiaomi Redmi K90 Ultra is the Qualcomm SM8750-AB Snapdragon 8 Elite chipset, built on a cutting-edge 3nm process. Coupled with an Octa-core CPU and an Adreno 830 GPU, this device is engineered for exceptional performance. Users can choose between configurations of 12GB or 16GB of RAM, paired with either 256GB or 512GB of UFS 4.1 storage. Running on Android 16 with HyperOS 3, the phone promises a smooth and intuitive user experience, easily handling demanding applications and providing seamless daily multitasking. A built-in cooling fan further contributes to sustained performance under heavy load.
Camera & Battery
The rear camera system on the Xiaomi Redmi K90 Ultra is designed for versatility. The dual-camera setup comprises a 50MP wide lens with optical image stabilization (OIS) and an 8MP ultrawide lens. Photo and video capture are further enhanced by a color spectrum sensor and HDR capabilities, allowing for detailed images and videos in various lighting conditions. Video recording extends to impressive 8K resolution at 30fps, and offers a range of frame rates up to 1920fps in 720p, supported by gyro-EIS for smooth footage. The device also supports HDR10+ video recording.
On the front, a 20MP wide-angle lens handles selfie duties, capable of recording video at 1080p resolution. The Xiaomi Redmi K90 Ultra features a substantial 8550 mAh battery, ensuring extended usage throughout the day. Charging is exceptionally fast, supporting 100W wired charging via PD3.0 and PPS, and also offering 22.5W reverse wired charging. Audio quality is elevated by Bose-tuned stereo speakers and Dolby Atmos, complemented by a 24-bit/192kHz Hi-Res audio system, providing a rich and immersive sound experience.
Who Should Buy This
The Xiaomi Redmi K90 Ultra is an excellent choice for users seeking a high-performance smartphone with a premium design and advanced features. It’s ideally suited for those who prioritize immersive multimedia experiences, demanding gaming, and extended battery life. Individuals who value robust durability and water resistance will also appreciate its IP68/IP69 rating. However, those who prefer a more compact device or require expandable storage via a microSD card might want to consider other options. Ultimately, the Redmi K90 Ultra targets users who want a top-tier Android experience without compromise.
Pros
- Exceptional 165Hz AMOLED display
- Powerful Snapdragon 8 Elite chipset
- Fast 100W wired charging
- IP68/IP69 water and dust resistance
- Bose-tuned stereo speakers with Dolby Atmos
Cons
- No microSD card slot for expandable storage
- Lacks a traditional 3.5mm headphone jack
- No FM radio functionality
- Large size may not suit all users
- No telephoto lens on the rear camera system
Verdict
The Xiaomi Redmi K90 Ultra delivers a compelling package, offering impressive performance, a stunning display, and long-lasting battery life. Its robust build quality and water resistance provide peace of mind, while the Bose-tuned audio elevates the multimedia experience. While the lack of a headphone jack and microSD card slot might be drawbacks for some, the overall experience is undeniably premium. For users prioritizing power, durability, and a captivating display, the Redmi K90 Ultra is a worthy contender.
Write a Review
Reviews (1)
Camera Samples
Performance & Features
Estimated average on high settings
Screen-on time (mixed usage)
Based on AI analysis
* These values are calculated automatically by our system and may not be 100% accurate.
