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Detailed side-by-side comparison of phone size, battery capacity, and hardware specifications

Xiaomi Redmi K90 Ultra

Battery:
Si/C

BATTERY

2 specs
Specification
Redmi K90 Ultra
Charging
100W wired, 100W PPS, PD3.0 22.5W reverse wired
Type
Si/C Li-Ion 8550 mAh

BODY

4 specs
Specification
Redmi K90 Ultra
Build
Glass front, aluminum frame
Dimensions
162.9 x 77.9 x 8.2 mm (6.41 x 3.07 x 0.32 in)
SIM
Nano-SIM + Nano-SIM
Weight
227 g (8.01 oz)

COMMUNICATIONS

7 specs
Specification
Redmi K90 Ultra
Bluetooth
5.4, A2DP, LE, LHDC 5.0, ASHA, Auracast
Infrared port
Yes
NFC
Yes
Positioning
GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC, GLONASS
Radio
No
USB
USB Type-C, OTG
WLAN
Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band, Wi-Fi Direct

DISPLAY

3 specs
Specification
Redmi K90 Ultra
Resolution
1280 x 2772 pixels, 19.5:9 ratio (~447 ppi density) * Measured at an isolated spot during video playback only
Size
6.83 inches, 114.5 cm2 (~90.3% screen-to-body ratio)
Type
AMOLED, 68B colors, PWM, 165Hz, Dolby Vision, HDR Vivid, HDR10+, 9500 nits (peak)*

FEATURES

1 specs
Specification
Redmi K90 Ultra
Sensors
Fingerprint (under display, optical), accelerometer, proximity, gyro, compass

MAIN CAMERA

3 specs
Specification
Redmi K90 Ultra
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
Video
8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, 720p@1920fps, gyro-EIS, HDR10+

MEMORY

2 specs
Specification
Redmi K90 Ultra
Internal
256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM UFS 4.1
Card Slot
No

MISC

2 specs
Specification
Redmi K90 Ultra
Colors
Black, Blue, Silver
Models
2604FRK1EC

NETWORK

6 specs
Specification
Redmi K90 Ultra
2G bands
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
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
Speed
HSPA, LTE, 5G
Technology
GSM / HSPA / LTE / 5G

PLATFORM

4 specs
Specification
Redmi K90 Ultra
CPU
Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
Chipset
Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm)
GPU
Adreno 830 (1200 MHz)
OS
Android 16, HyperOS 3

SELFIE CAMERA

2 specs
Specification
Redmi K90 Ultra
Single
20 MP (wide)
Video
1080p@30/60fps

SOUND

2 specs
Specification
Redmi K90 Ultra
3.5 mm Jack
No Tuned by Bose Bose 2.1 stereo sound system with a woofer 24-bit/192kHz Hi-Res & Hi-Res wireless audio
Loudspeaker
Yes, with stereo speakers (with Dolby Atmos)