Xiaomi Redmi K90 Ultra
The Redmi K90 Ultra (also known as the Redmi K90 Ultimate Edition) is a high-performance flagship phone under the Redmi brand.
The core configuration of this phone includes the Dimensity 9500 processor, built-in active cooling fan, high refresh rate screen, and large capacity battery [1-2]. It is equipped with TSMC's 3nm process Dimensity 9500 chip, which improves single core performance by 32% and multi-core performance by 17% compared to the previous generation. It is also equipped with ultrasonic under screen fingerprint recognition and HyperOS 3.0 system.
Adopting a high refresh rate AMOLED straight screen and a heat dissipation system consisting of a built-in fan and VC heat sharing plate. Built in battery with a typical capacity of 8500mAh, supporting 100W wired fast charging and compatible with 100W PPS, while also supporting 50W wireless fast charging.
The rear camera features a 50 megapixel main camera and an 8-megapixel ultra wide angle dual camera, with the main camera equipped with OIS optical image stabilization. In addition, the model is equipped with a metal frame and supports IP68 dust and water resistance.
Its main parameters are as follows:
| 3.5mm jack | No |
| Tuned by Bose | |
| Bose 2.1 stereo sound system with a woofer | |
| 24-bit/192kHz Hi-Res & Hi-Res wireless audio | |
| Announced | 2026, June 30 |
| Bluetooth | 5.4, A2DP, LE, LHDC 5.0, ASHA, Auracast |
| Build | Glass front, aluminum frame |
| Card slot | No |
| Charging | 100W wired, 100W PPS, PD3.0 |
| 22.5W reverse wired | |
| Chipset | Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm) |
| Colors | Black, Blue, Silver |
| CPU | Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M) |
| Dimensions | 162.9 x 77.9 x 8.2 mm (6.41 x 3.07 x 0.32 in) |
| 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 | |
| Features | Color spectrum sensor, LED flash, HDR, panorama |
| GPU | Adreno 830 (1200 MHz) |
| Infrared port | Yes |
| Internal | 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM |
| UFS 4.1 | |
| Loudspeaker | Yes, with stereo speakers (with Dolby Atmos) |
| Models | 2604FRK1EC |
| NFC | Yes |
| OS | Android 16, HyperOS 3 |
| Positioning | GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC, GLONASS |
| Radio | No |
| Resolution | 1280 x 2772 pixels, 19.5:9 ratio (~447 ppi density) |
| * Measured at an isolated spot during video playback only | |
| Sensors | Fingerprint (under display, optical), accelerometer, proximity, gyro, compass |
| SIM | Nano-SIM + Nano-SIM |
| IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) | |
| Built-in cooling fan | |
| Single | 20 MP (wide) |
| Size | 6.83 inches, 114.5 cm2 (~90.3% screen-to-body ratio) |
| Status | Available. Released 2026, June 30 |
| Technology | GSM / HSPA / LTE / 5G |
| Type | AMOLED, 68B colors, PWM, 165Hz, Dolby Vision, HDR Vivid, HDR10+, 9500 nits (peak)* |
| Si/C Li-Ion 8550 mAh | |
| USB | USB Type-C, OTG |
| Video | 8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, 720p@1920fps, gyro-EIS, HDR10+ |
| 1080p@30/60fps | |
| Weight | 227 g (8.01 oz) |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band, Wi-Fi Direct |