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- Redmi K90 Ultra vs Poco C81x
Redmi K90 Ultra vs Poco C81x comparison
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| key specs | ||||
| Display | 6.83-inch | 6.88-inch | ||
| Front Camera | 20-megapixel | 8-megapixel | ||
| Rear Camera | 50-megapixel + 8-megapixel | 13-megapixel | ||
| RAM | 12GB | 3GB | ||
| Storage | 256GB | 64GB | ||
| Battery Capacity | 8550mAh | 5200mAh | ||
| OS | Android 16 | Android 15 | ||
| Resolution | 1280x2772 pixels | 720x1640 pixels | ||
| Processor | - | Unisoc T7250 | ||
| general | ||||
| Brand | Xiaomi | Poco | ||
| Model | Redmi K90 Ultra | C81x | ||
| Release date | June 30, 2026 | April 23, 2026 | ||
| Launched in India | No | Yes | ||
| Dimensions (mm) | 162.91 x 77.93 x 8.18 | 171.79 x 77.80 x 8.26 | ||
| Weight (g) | 227.00 | 193.00 | ||
| Battery capacity (mAh) | 8550 | 5200 | ||
| Fast charging | 100W Fast Charging | 15W Fast Charging | ||
| Colours | Space Silver, Shadow Black and Sky Blue | Elite Black, Ice Blue | ||
| AI Enabled | - | Yes | ||
| Form factor | - | Touchscreen | ||
| IP rating | - | IP52 | ||
| Removable battery | - | No | ||
| Wireless charging | - | No | ||
| display | ||||
| Refresh Rate | 165 Hz | 120 Hz | ||
| Resolution Standard | 1.5K | HD+ | ||
| Screen size (inches) | 6.83 | 6.88 | ||
| Resolution | 1280x2772 pixels | 720x1640 pixels | ||
| Touchscreen | - | Yes | ||
| hardware | ||||
| Processor make | Snapdragon 8 Elite | Unisoc T7250 | ||
| RAM | 12GB | 3GB | ||
| Internal storage | 256GB | 64GB | ||
| Processor | - | 1.8GHz MHz octa-core | ||
| Expandable storage | - | Yes | ||
| Expandable storage type | - | microSD | ||
| Expandable storage up to (GB) | - | 2048 | ||
| camera | ||||
| Rear camera | 50-megapixel + 8-megapixel | 13-megapixel | ||
| No. of Rear Cameras | 2 | 1 | ||
| Front camera | 20-megapixel | 8-megapixel | ||
| No. of Front Cameras | 1 | 1 | ||
| Rear autofocus | - | Yes | ||
| Rear flash | - | Yes | ||
| Pop-Up Camera | - | No | ||
| software | ||||
| Operating system | Android 16 | Android 15 | ||
| Skin | HyperOS 3 | - | ||
| connectivity | ||||
| Wi-Fi 7 | Yes | - | ||
| GPS | Yes | Yes | ||
| Bluetooth | Yes | Yes, v 5.20 | ||
| NFC | Yes | - | ||
| USB Type-C | Yes | Yes | ||
| Wi-Fi | - | Yes | ||
| Headphones | - | 3.5mm | ||
| Number of SIMs | - | 2 | ||
| Active 4G on both SIM cards | - | Yes | ||
| sensors | ||||
| Fingerprint sensor | Yes | Yes | ||
| Compass/ Magnetometer | Yes | Yes | ||
| Proximity sensor | Yes | Yes | ||
| Accelerometer | Yes | Yes | ||
| Ambient light sensor | Yes | Yes | ||
| Gyroscope | Yes | - | ||
| sim 1 | ||||
| SIM Type | - | Nano-SIM | ||
| GSM/CDMA | - | GSM + CDMA | ||
| 4G/ LTE | - | Yes | ||
| 5G | - | Yes | ||
| sim 2 | ||||
| SIM Type | - | Nano-SIM | ||
| GSM/CDMA | - | GSM + CDMA | ||
| 4G/ LTE | - | Yes | ||
| 5G | - | Yes | ||
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