Xiaomi 15 Ultra vs Xiaomi Redmi K90
Quick Comparison
Xiaomi 15 Ultra has better RAM than Xiaomi Redmi K90. In terms of display resolution, Xiaomi 15 Ultra has better resolution of 3200 x 1440 than Xiaomi Redmi K90 which has resolution of 2510 x 1156. Xiaomi 15 Ultra has more internal memory than Xiaomi Redmi K90
| Name | Xiaomi 15 Ultra | Xiaomi Redmi K90 |
| RAM | 16 GB | 12 GB |
|---|---|---|
| Display | 6.73 in | 6.59 in |
| Internal Memory | 512 GB | 256 GB |
| Battery | 5410 mAh | 7100 mAh |
| Camera | 50 MP Quad | 50 MP + 50 MP + 8 MP Triple |
| Price | Rs. 109999 | Rs. 35990 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is March 11, 2025. The cost of Xiaomi 15 Ultra is Rs. 109999. The launch Date of the second phone is October 27, 2025. The Expected cost of Xiaomi Redmi K90 is Rs. 35990.
Display comparison
Xiaomi Redmi K90 has screen size of 6.59 inches which falls short to Xiaomi 15 Ultra's 6.73 inch screen. Xiaomi 15 Ultra has LTPO AMOLED Screen type where as Xiaomi Redmi K90 has AMOLED Screen type. Xiaomi 15 Ultra has display density of 522 PPI & Xiaomi Redmi K90 has only 419 PPI display density. In terms of screen to body ratio, Xiaomi 15 Ultra has better screen to body ratio of ~ 89.7% than Xiaomi Redmi K90's ~ 87.5%. Both phones have same aspect ratio of 20:9.
Memory comparison
Xiaomi 15 Ultra's larger 16 GB RAM is better for playing games and all with respect to Xiaomi Redmi K90's lower 12 GB RAM. Xiaomi 15 Ultra has more Internal Memory (512 GB) than Xiaomi Redmi K90 (256 GB).
Camera comparison
They both have the same 50 MP Quad Rear Camera. Xiaomi 15 Ultra will be better choice if you're looking to click lot of selfies as it has better 32 MP Front Camera in comparison to Xiaomi Redmi K90's 20 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 15 and the second one on 16 version.
Related Comparisons
Full Comparison
| Name | Xiaomi 15 Ultra | Xiaomi Redmi K90 |
| General | ||
| Country of Origin | India | |
| Model | Mi 15 Ultra 25010PN30G | K90 |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | March 11, 2025 | October 27, 2025 |
| In The Box | Mobile Phone, Adapter, USB Type-C Cable, SIM Eject Tool, Protective Case, Safety Information, Quick Start Guide and Warranty Card, Desiccant | |
| Design | ||
| Dimensions | 75.3 x 161.3 x 9.48 mm | 75.25 x 157.49 x 8 mm |
| Weight | 229 g | 206 g |
| Bezel less | Yes | |
| Qwerty | No | |
| Colors | Silver Chrome | |
| Display | ||
| Type | Color LTPO AMOLED Screen (68B) | Color AMOLED Screen (1B Colors) |
| Touch | Yes, 300 Hz Touch Sampling Rate | Yes, 480 Hz Touch Sampling Rate |
| Size | 6.73 inches, 1440 x 3200 pixels, 120 Hz | 6.59 inches, 1156 x 2510 pixels, 120 Hz |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 522 PPI | ~ 419 PPI |
| Screen to Body Ratio | ~ 89.7% | ~ 87.5% |
| Glass Type | Xiaomi Shield Glass 2.0 | |
| Brightness | 3200 nits (peak) | 3500nits |
| Features | DCI-P3, Dolby Vision, HDR10+, 1920Hz PWM Dimming / DC Dimming, Original color PRO, Pro HDR, Wet Touch Technology, HDR10+, Dolby Vision, TÜV Rheinland Low Blue Light (Hardware Solution) Certified, TÜV Rheinland Flicker Free Certified, TÜV Rheinland Circadian Friendly Certified, Always-active Display | |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Curved Display | Yes | |
| Memory | ||
| RAM | 16 GB | 12 GB |
| RAM Type | LPDDR5X | |
| Storage | 512 GB | 256 GB |
| Storage Type | UFS 4.1 | UFS 4 |
| Card Slot | No | |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| 5G Bands | SA:n1/2/3/5/7/8/12/20/25/26/28A/28B/38/40/41/48/66/75/77/78/79/71, NSA: n1/3/5/7/8/20/28/38/40/41/66/75/77/78/79/71 | n1/n3/n5/n7/n8/n28/n66/n38/n40/n41/n48/n77/n78 |
| VoLTE | Yes, Dual Stand-By | Yes |
| Vo5G | Yes | |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | WiFi 6 support | Wi-Fi 7 |
| Bluetooth | Yes, v6.0, A2DP, LE, aptX HD | Yes, v5.4, A2DP, LE |
| USB | Yes, USB-C v3.2 | Yes, USB-C v2.0 |
| USB Features | USB Tethering, USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| IR Blaster | Yes | Yes |
| Performance | ||
| AnTuTu Score | 2,477,963 (Total) (v10) 542,576 (CPU) 1,036,853 (GPU) 474,641 (Memory) 423,893 (UX) | |
| Geekbench Score | 8,871 (Multi Core) (v6) 2,960 (Single Core) 18,683 (OpenCL) 25,095 (Vulkan) | |
| 3DMark Score | 21,097 (Wild Life) (125 FPS) 6,134 (Wild Life Extreme) (35 FPS) | |
| Camera Score | 153 (DxOMark) | |
| Speaker Score | 84 (Very Good) | |
| Battery Test Result | 15.98 hours | |
| Extra | ||
| GPS | GPS: L1+L5, Galileo: E1+E5a, GLONASS: G1, Beidou, QZSS: L1 + L5, NavIC: L5, A-GPS Supplementary Positioning, Electronic Compass, Wireless Network, Data Network, SAP | Yes, with A-GPS. Up to tri-band: GLONASS, BDS, GALILEO, QZSS, NavIC |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Proximity Sensor, Ambient Light Sensor, Accelerometer, Gyroscope, Electronic Compass, IR Blaster, Laser Autofocus, Barometer, Flicker Sensor, X-Axis Linear Vibration Motor | Accelerometer, Gyro, Proximity, Compass, Color Spectrum |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | Yes |
| Water Resistance | Yes, 1.5 m upto 30 min | |
| Splash Resistant | Yes | |
| IP Rating | IP68 | |
| Dust Resistant | Yes | No |
| Extra Features | Xiaomi 3D Dual-Channel IceLoop system, Aerospace-grade Glass Fiber | |
| Camera | ||
| Rear Camera | 50 MP ƒ/1.6 (Wide Angle) 23mm (Wide), 1.0"-Type, 1.6µm, Dual Pixel PDAF, OIS 50 MP ƒ/1.8 (Telephoto) 70mm (Telephoto), 1/2.51", 0.7µm, Dual Pixel PDAF (10cm - ∞), OIS, 3x Optical Zoom 200 MP ƒ/2.6 (Periscope Telephoto) 100mm (Periscope Telephoto), 1/1.4", 0.56µm, Multi-Directional PDAF, OIS, 4.3x Optical Zoom 50 MP ƒ/2.2 (Ultra Wide) 14mm, 115˚ (Ultrawide), 1/2.76", 0.64µm, Dual Pixel PDAF | 50 MP (Wide Angle) 50 MP (Telephoto) 8 MP (Wide Angle) |
| Camera Sensor | LYT-900 | |
| OIS | Yes | Yes |
| Auto Focus | Yes, Laser AF | Yes |
| Features | Leica Summilux Optical Lens, Laser AF, Color Spectrum Sensor, Leica Lenses, Two Leica Photographic Styles (Leica Authentic Look, Leica Vibrant Look), Leica Filters, Leica Classic Shutter Sound, Leica Watermark, Xiaomi ProFocus (Motion Tracking Focus, Eye Tracking Focus and Motion Capture), Lightning Burst, Digital Zoom Up to 120x, HDR, Dynamic Shot, Portrait Mode, Master-Lens System (23mm-135mm), 50MP Mode (Wide/Ultra Wide/Telephoto), 200MP Mode (Periscope), Super Macro, Panorama, Long Exposure, Documents, Fastshot Mode, Supermoon, Pro Mode, Image Formats Captured: DNG, HEIF, JPEG, RAW Mode, UltraRAW: 16-Bit, Rear Camera Video Features, Movie Mode, ShootSteady, Slow Motion, Dual Video, Time-Lapse, Ultra Night Video, Video Pro Mode, Video Log Format | |
| Video Recording | 8K @ 30 fps UHD, 1080p @ 30/60 fps FHD, 4K @ 120/30/60 fps UHD | 8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 30/60 fps FHD, 720p @ 1920 fps HD |
| Flash | Yes, Dual LED | Yes, Dual LED |
| Front Camera | 32 MP ƒ/2 (Wide Angle) 21mm (Wide), 1/3.14", 0.7µm Punch Hole, Autofocus, Screen Flash | 20 MP (Wide Angle) Punch Hole |
| Front Video Recording | 4K @ 30/60 fps UHD, 1080p @ 30/60 fps FHD | 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v15 | Android v16 |
| Custom UI | Xiaomi HyperOS 2 | HyperOS 3 |
| Chipset | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite |
| CPU | 4.32 GHz, Octa Core Processor | 4.32 GHz, Octa Core Processor |
| Core Details | 2x Prime Core@4.32 GHz & 6x Performance Core@3.53 GHz & Qualcomm AI engine | 2x Prime Core@4.32 GHz & 6x Performance Core@3.53 GHz |
| Fabrication Node | 3 nm | |
| GPU | Adreno 830 | Adreno GPU |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | MP3, FLAC, APE, AAC, OGG, WAV, WMA, AMR, AWB | Yes |
| Video | MP4, MKV, WEBM, 3GP, TS, HDR10+, Supports HDR Display When Playing HDR10+, Dolby Vision, HDR Vivid Video Content | Yes |
| FM Radio | No | No |
| Speaker Type | Stereo | |
| Audio Features | 4-Mic Array, 24-bit/192kHz Hi-Res & Hi-Res Wireless Audio. Qualcomm XPAN (24-bit/96kHz Audio), Dolby Atmos | |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5410 mAh, Li-ion Battery | 7100 mAh |
| Fast Charging | Yes, 90W HyperCharge | Yes, 100W Fast charging |
| Wireless Charging | Yes, 80W HyperCharge | |
| Reverse Charging | Yes | Yes, 22.5W |
| Reverse Wireless Charging | Yes, 10W | |