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- Redmi Note 15 5G vs Vivo X21
Redmi Note 15 5G vs Vivo X21 comparison
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| ratings | ||||
| Overall NDTV Rating | Read Review | Read Review | ||
| Design Rating | ||||
| Display Rating | ||||
| Software Rating | ||||
| Performance Rating | ||||
| Battery Life Rating | ||||
| Camera Rating | ||||
| Value for Money Rating | ||||
| key specs | ||||
| Display | 6.77-inch | 6.28-inch | ||
| Front Camera | 20-megapixel | 12-megapixel | ||
| Rear Camera | 108-megapixel + 8-megapixel | 12-megapixel + 5-megapixel | ||
| RAM | 6GB, 8GB | 6GB | ||
| Storage | 128GB, 256GB | 128GB | ||
| Battery Capacity | 5520mAh | 3200mAh | ||
| OS | Android 15 | Android 8.1 | ||
| Resolution | 1080x2392 pixels | 1080x2280 pixels | ||
| Processor | - | Qualcomm Snapdragon 660 | ||
| general | ||||
| Brand | Xiaomi | Vivo | ||
| Model | Redmi Note 15 5G | X21 | ||
| Release date | December 11, 2025 | March 1, 2018 | ||
| Launched in India | No | Yes | ||
| Form factor | Touchscreen | Touchscreen | ||
| Body type | Polycarbonate | - | ||
| Dimensions (mm) | 164.00 x 75.42 x 7.35 | 154.50 x 74.80 x 7.40 | ||
| Weight (g) | 178.00 | 156.20 | ||
| IP rating | IP65 | - | ||
| Battery capacity (mAh) | 5520 | 3200 | ||
| Removable battery | No | No | ||
| Fast charging | 45W Fast Charging | Proprietary | ||
| Wireless charging | No | - | ||
| Colours | Black, Glacier Blue, and Mist Purple | Black, Gold | ||
| display | ||||
| Refresh Rate | 120 Hz | - | ||
| Resolution Standard | FHD+ | - | ||
| Screen size (inches) | 6.77 | 6.28 | ||
| Touchscreen | Yes | Yes | ||
| Resolution | 1080x2392 pixels | 1080x2280 pixels | ||
| Protection type | Gorilla Glass 7i | - | ||
| Aspect ratio | 16:9 | 19:9 | ||
| hardware | ||||
| Processor make | Qualcomm Snapdragon 6 Gen 3 | Qualcomm Snapdragon 660 | ||
| RAM | 6GB, 8GB | 6GB | ||
| Internal storage | 128GB, 256GB | 128GB | ||
| Expandable storage | Yes | Yes | ||
| Expandable storage type | microSD | microSD | ||
| Expandable storage up to (GB) | 1TB | 256 | ||
| Processor | - | 2.2GHz octa-core | ||
| camera | ||||
| Rear camera | 108-megapixel + 8-megapixel | 12-megapixel (f/1.8, 1.4-micron) + 5-megapixel (f/2.4) | ||
| No. of Rear Cameras | 2 | - | ||
| Front camera | 20-megapixel | 12-megapixel (f/2.0) | ||
| No. of Front Cameras | 1 | - | ||
| Rear autofocus | - | Phase detection autofocus | ||
| Rear flash | - | LED | ||
| software | ||||
| Operating system | Android 15 | Android 8.1 | ||
| Skin | HyperOS 2 | FunTouch 4.0 | ||
| connectivity | ||||
| Wi-Fi | Yes | Yes | ||
| Bluetooth | Yes | Yes, v 5.00 | ||
| NFC | Yes | No | ||
| USB Type-C | Yes | - | ||
| Wi-Fi standards supported | - | 802.11 a/b/g/n/ac | ||
| GPS | - | Yes | ||
| Infrared | - | No | ||
| USB OTG | - | Yes | ||
| Micro-USB | - | Yes | ||
| Headphones | - | 3.5mm | ||
| FM | - | No | ||
| Number of SIMs | - | 2 | ||
| sim 1 | ||||
| SIM Type | - | Nano-SIM | ||
| GSM/CDMA | - | GSM | ||
| 3G | - | Yes | ||
| 4G/ LTE | - | Yes | ||
| sim 2 | ||||
| SIM Type | - | Nano-SIM | ||
| GSM/CDMA | - | GSM | ||
| 3G | - | Yes | ||
| 4G/ LTE | - | Yes | ||
| sensors | ||||
| Fingerprint sensor | - | Yes | ||
| Compass/ Magnetometer | - | Yes | ||
| Proximity sensor | - | Yes | ||
| Accelerometer | - | Yes | ||
| Ambient light sensor | - | Yes | ||
| Gyroscope | - | Yes | ||
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