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- OnePlus 15 vs Vivo X21 UD
OnePlus 15 vs Vivo X21 UD comparison
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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 | 6.78-inch | 6.28-inch | ||
| Processor | Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 660 | ||
| Front Camera | 32-megapixel | 12-megapixel | ||
| Rear Camera | 50-megapixel + 50-megapixel + 50-megapixel | 12-megapixel | ||
| RAM | 12GB, 16GB | 6GB | ||
| Storage | 256GB, 512GB | 128GB | ||
| Battery Capacity | 7,300mAh | 3200mAh | ||
| OS | Android 16 | Android 8.1 | ||
| Resolution | 1,272x2,772 pixels | 1080x2280 pixels | ||
| general | ||||
| Brand | OnePlus | Vivo | ||
| Model | 15 | X21 UD | ||
| Release date | October 27, 2025 | March 1, 2018 | ||
| Launched in India | Yes | - | ||
| Form factor | Touchscreen | Touchscreen | ||
| Dimensions (mm) | 161.42 x 76.67 x 8.10 | 154.50 x 74.80 x 7.40 | ||
| Weight (g) | 211.00 | 156.20 | ||
| IP rating | IP69 | - | ||
| Battery capacity (mAh) | 7,300 | 3200 | ||
| Removable battery | No | - | ||
| Fast charging | 120W FlashCharge | - | ||
| Wireless charging | Yes | - | ||
| Wireless Charging Type | 50W | - | ||
| Colours | Infinite Black, Sand Storm, and Ultra Violet | Ruby Red, Aurora White, Black | ||
| display | ||||
| Refresh Rate | 165 Hz | - | ||
| Resolution Standard | 1.5K | - | ||
| Screen size (inches) | 6.78 | 6.28 | ||
| Touchscreen | Yes | Yes | ||
| Resolution | 1,272x2,772 pixels | 1080x2280 pixels | ||
| Pixels per inch (PPI) | 450 | - | ||
| hardware | ||||
| Processor | octa-core | octa-core | ||
| Processor make | Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 660 | ||
| RAM | 12GB, 16GB | 6GB | ||
| Internal storage | 256GB, 512GB | 128GB | ||
| camera | ||||
| Rear camera | 50-megapixel (f/1.8) + 50-megapixel (f/2.0) + 50-megapixel (f/1.8) | 12-megapixel | ||
| No. of Rear Cameras | 3 | - | ||
| Front camera | 32-megapixel | 12-megapixel | ||
| No. of Front Cameras | 1 | - | ||
| Pop-Up Camera | No | - | ||
| Rear flash | - | LED | ||
| software | ||||
| Operating system | Android 16 | Android 8.1 | ||
| Skin | OxygenOS 16 | FunTouch 4.0 | ||
| connectivity | ||||
| Wi-Fi 7 | Yes | - | ||
| Wi-Fi | Yes | Yes | ||
| GPS | Yes | Yes | ||
| Bluetooth | Yes | Yes, v 5.00 | ||
| NFC | Yes | - | ||
| USB Type-C | Yes | - | ||
| Wi-Fi standards supported | - | 802.11 a/b/g/n/ac | ||
| USB OTG | - | Yes | ||
| Headphones | - | 3.5mm | ||
| Number of SIMs | - | 2 | ||
| sensors | ||||
| In-Display Fingerprint Sensor | Yes | - | ||
| Compass/ Magnetometer | Yes | Yes | ||
| Proximity sensor | Yes | Yes | ||
| Accelerometer | Yes | - | ||
| Ambient light sensor | Yes | Yes | ||
| Gyroscope | Yes | Yes | ||
| Barometer | Yes | - | ||
| Temperature sensor | Yes | - | ||
| sim 1 | ||||
| SIM Type | - | Micro-SIM | ||
| GSM/CDMA | - | GSM | ||
| 3G | - | Yes | ||
| 4G/ LTE | - | Yes | ||
| sim 2 | ||||
| SIM Type | - | Micro-SIM | ||
| GSM/CDMA | - | GSM | ||
| 3G | - | Yes | ||
| 4G/ LTE | - | Yes | ||
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