Xiaomi Redmi K90 vs Nubia Z80 Ultra
Quick Comparison
Both Xiaomi Redmi K90 and Nubia Z80 Ultra comes with same RAM. In terms of display resolution, Nubia Z80 Ultra has better resolution of 2688 x 1216 than Xiaomi Redmi K90 which has resolution of 2510 x 1156. Nubia Z80 Ultra has more internal memory than Xiaomi Redmi K90
| Name | Xiaomi Redmi K90 | Nubia Z80 Ultra |
| RAM | 12 GB | 12 GB |
|---|---|---|
| Display | 6.59 in | 6.85 in |
| Internal Memory | 256 GB | 512 GB |
| Battery | 7100 mAh | 7200 mAh |
| Camera | 50 MP + 50 MP + 8 MP Triple | 64 MP + 50 MP + 50 MP Triple |
| Price | Rs. 35990 | Rs. 61990 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is October 27, 2025. The Expected cost of Xiaomi Redmi K90 is Rs. 35990. The launch Date of the second phone is October 22, 2025. The Expected cost of Nubia Z80 Ultra is Rs. 61990.
Display comparison
Xiaomi Redmi K90 has screen size of 6.59 inches which falls short to Nubia Z80 Ultra's 6.85 inch screen. Both the phones have AMOLED Screen Type. Nubia's phone has display density of 431 PPI & Xiaomi's phone has only 419 PPI display density. In terms of screen to body ratio, Nubia's phone has better screen to body ratio of ~ 89.5% than Xiaomi's phone ~ 87.5%. Both mobiles have same aspect ratio of 20:9.
Memory comparison
Both mobiles come with 12 GB RAM Nubia Z80 Ultra has more Internal Memory (512 GB) than Xiaomi Redmi K90 (256 GB).
Camera comparison
They both have the same 50 MP + 50 MP + 8 MP Triple Rear Camera. Xiaomi Redmi K90 will be better choice if you're looking to click lot of selfies as it has better 20 MP Front Camera in comparison to Nubia Z80 Ultra's 16 MP Front Camera.
Technical comparison
Both the phones run on Android Operating System Version 16.
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Full Comparison
| Name | Xiaomi Redmi K90 | Nubia Z80 Ultra |
| General | ||
| Model | K90 | NX741J |
| 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 | October 27, 2025 | October 22, 2025 |
| Design | ||
| Dimensions | 75.25 x 157.49 x 8 mm | 77.2 x 164.5 x 8.6 mm |
| Weight | 206 g | 227 g |
| Bezel less | Yes | |
| Colors | Black, Silver, Starry Blue, Luo Tian Yi Red | |
| Display | ||
| Type | Color AMOLED Screen (1B Colors) | Color AMOLED Screen (1B Colors) |
| Touch | Yes, 480 Hz Touch Sampling Rate | Yes |
| Size | 6.59 inches, 1156 x 2510 pixels, 120 Hz | 6.85 inches, 1216 x 2688 pixels, 144 Hz |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 419 PPI | ~ 431 PPI |
| Screen to Body Ratio | ~ 87.5% | ~ 89.5% |
| Brightness | 3500nits | 2000 nits (peak) |
| Features | 2592Hz PWM, HDR10 | |
| Notch | Yes, Punch Hole | |
| Memory | ||
| RAM | 12 GB | 12 GB |
| Storage | 256 GB | 512 GB |
| Storage Type | UFS 4 | UFS 4.1 |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| 5G Bands | n1/n3/n5/n7/n8/n28/n66/n38/n40/n41/n48/n77/n78 | |
| VoLTE | Yes | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi 7 | Wi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band |
| Bluetooth | Yes, v5.4, A2DP, LE | Yes, v5.4, A2DP, LE |
| USB | Yes, USB-C v2.0 | Yes, USB-C v3.2 |
| USB Features | USB on-the-go, USB Charging | USB Tethering, USB on-the-go, USB Charging |
| IR Blaster | Yes | Yes |
| Extra | ||
| GPS | Yes, with A-GPS. Up to tri-band: GLONASS, BDS, GALILEO, QZSS, NavIC | Yes, with A-GPS (L1+L2+L5), GLONASS (G1+G5), BDS (B1I+B1C+B2a+B2b), GALILEO (E1+E5a), QZSS (L1+L5) |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Gyro, Proximity, Compass, Color Spectrum | Accelerometer, Gyro, Proximity, Compass |
| 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 | No | Yes |
| Camera | ||
| Rear Camera | 50 MP (Wide Angle) 50 MP (Telephoto) 8 MP (Wide Angle) | 50 MP ƒ/1.7 35mm (standard), 1/1.3", 1.2µm, PDAF, OIS 64 MP ƒ/2.5 (Telephoto) 85mm (periscope telephoto), 1/2.0", 0.7µm, multi-directional PDAF (15cm - ∞), OIS, 3.3x optical zoom (vs. 26mm cam) 50 MP ƒ/1.8 (Ultra Wide) 18mm (ultrawide), 1/1.55", PDAF |
| OIS | Yes | Yes |
| Auto Focus | Yes | Yes |
| Features | Laser AF, Color Spectrum Sensor, Ring- Dual-tone , Panorama, DSG HDR | |
| Video Recording | 8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 30/60 fps FHD, 720p @ 1920 fps HD | 4K, 1080p |
| Flash | Yes, Dual LED | Yes, LED |
| Front Camera | 20 MP (Wide Angle) Punch Hole | 16 MP ƒ/2 (Wide Angle) Under Display |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v16 | Android v16 |
| Custom UI | HyperOS 3 | MyOS 15 |
| Chipset | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite Gen 5 |
| CPU | 4.32 GHz, Octa Core Processor | 4.6 GHz, Octa Core Processor |
| Core Details | 2x Prime Core@4.32 GHz & 6x Performance Core@3.53 GHz | 2x4.6 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M |
| GPU | Adreno GPU | Adreno 840 |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | No | No |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 7100 mAh | 7200 mAh, Si/C Li-Ion |
| Fast Charging | Yes, 100W Fast charging | Yes, 90W Fast Charging |
| Wireless Charging | Yes, 80W | |
| Reverse Charging | Yes, 22.5W | |