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| ratings | ||||
| Overall NDTV Rating | Read Review | - | ||
| Design Rating | - | |||
| Display Rating | - | |||
| Software Rating | - | |||
| Performance Rating | - | |||
| Battery Life Rating | - | |||
| Camera Rating | - | |||
| Value for Money Rating | - | |||
| key specs | ||||
| Display | 6.73-inch | 5.50-inch | ||
| Processor | Snapdragon 8 Elite | MediaTek Helio X10 | ||
| Front Camera | 32-megapixel | 5-megapixel | ||
| Rear Camera | 50-megapixel + 50-megapixel + 200-megapixel + 50-megapixel | 13-megapixel | ||
| RAM | 16GB | 2GB | ||
| Storage | 512GB | 16GB | ||
| Battery Capacity | 5410mAh | 3060mAh | ||
| OS | Android 15 | Android 5.0 | ||
| Resolution | 3200x1440 pixels | 1080x1920 pixels | ||
| general | ||||
| Brand | Xiaomi | Xiaomi | ||
| Model | 15 Ultra | Redmi Note 2 | ||
| Release date | February 27, 2025 | August 1, 2015 | ||
| AI Enabled | Yes | - | ||
| Form factor | Touchscreen | Touchscreen | ||
| Dimensions (mm) | 161.30 x 75.30 x 9.35 | 152.00 x 76.00 x 8.25 | ||
| Weight (g) | 226.00 | 160.00 | ||
| IP rating | IP68 | - | ||
| Battery capacity (mAh) | 5410 | 3060 | ||
| Fast charging | 90W Fast Charging | - | ||
| Wireless charging | Yes | - | ||
| Wireless Charging Type | 80W | - | ||
| Removable battery | - | Yes | ||
| Colours | - | White, Blue, Yellow, Pink | ||
| display | ||||
| Refresh Rate | 120 Hz | - | ||
| Screen size (inches) | 6.73 | 5.50 | ||
| Touchscreen | Yes | Yes | ||
| Resolution | 3200x1440 pixels | 1080x1920 pixels | ||
| Protection type | Other | - | ||
| Pixels per inch (PPI) | - | 400 | ||
| hardware | ||||
| Processor | 4.32 MHz octa-core | 2GHz octa-core | ||
| Processor make | Snapdragon 8 Elite | MediaTek Helio X10 (MT6795) | ||
| RAM | 16GB | 2GB | ||
| Internal storage | 512GB | 16GB | ||
| Expandable storage | - | Yes | ||
| Expandable storage type | - | microSD | ||
| Expandable storage up to (GB) | - | 32 | ||
| camera | ||||
| Rear camera | 50-megapixel (f/1.63) + 50-megapixel (f/1.8) + 200-megapixel (f/2.6) + 50-megapixel (f/2.2) | 13-megapixel | ||
| No. of Rear Cameras | 4 | - | ||
| Rear flash | Yes | Yes | ||
| Front camera | 32-megapixel (f/2.0) | 5-megapixel | ||
| No. of Front Cameras | 1 | - | ||
| Lens Type (Second Rear Camera) | Telephoto | - | ||
| Lens Type (Third Rear Camera) | Telephoto | - | ||
| Lens Type (Fourth Rear Camera) | Ultra Wide-Angle | - | ||
| software | ||||
| Operating system | Android 15 | Android 5.0 | ||
| Skin | HyperOS 2.0 | MIUI 7 | ||
| connectivity | ||||
| Wi-Fi 7 | Yes | - | ||
| Wi-Fi | Yes | Yes | ||
| Wi-Fi standards supported | 802.11 ax | - | ||
| GPS | Yes | Yes | ||
| Bluetooth | Yes, v 5.40 | Yes, v 4.00 | ||
| NFC | Yes | No | ||
| Infrared | Yes | Yes | ||
| USB Type-C | Yes | - | ||
| Number of SIMs | 2 | 2 | ||
| USB OTG | - | No | ||
| Headphones | - | 3.5mm | ||
| FM | - | Yes | ||
| Wi-Fi Direct | - | Yes | ||
| Mobile High-Definition Link (MHL) | - | No | ||
| sim 1 | ||||
| SIM Type | Nano-SIM | Micro-SIM | ||
| GSM/CDMA | GSM | GSM | ||
| 3G | Yes | Yes | ||
| 4G/ LTE | Yes | Yes | ||
| 5G | Yes | - | ||
| sim 2 | ||||
| SIM Type | Nano-SIM | Micro-SIM | ||
| GSM/CDMA | GSM | GSM | ||
| 3G | Yes | Yes | ||
| 4G/ LTE | Yes | Yes | ||
| 5G | Yes | - | ||
| sensors | ||||
| In-Display Fingerprint Sensor | Yes | - | ||
| Compass/ Magnetometer | Yes | Yes | ||
| Proximity sensor | Yes | Yes | ||
| Accelerometer | Yes | Yes | ||
| Ambient light sensor | Yes | Yes | ||
| Gyroscope | Yes | Yes | ||
| Barometer | Yes | No | ||
| Temperature sensor | - | No | ||
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