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- Realme 15T vs Vivo X21 UD
Realme 15T vs Vivo X21 UD comparison
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| key specs | ||||
| Display | 6.57-inch | 6.28-inch | ||
| Processor | MediaTek Dimensity 6400 | Qualcomm Snapdragon 660 | ||
| Front Camera | 50-megapixel | 12-megapixel | ||
| Rear Camera | 50-megapixel + 2-megapixel | 12-megapixel | ||
| RAM | 8GB, 12GB | 6GB | ||
| Storage | 128GB, 256GB | 128GB | ||
| Battery Capacity | 7000mAh | 3200mAh | ||
| OS | Android 15 | Android 8.1 | ||
| Resolution | 1080x2372 pixels | 1080x2280 pixels | ||
| general | ||||
| Brand | Realme | Vivo | ||
| Model | 15T | X21 UD | ||
| Release date | September 2, 2025 | March 1, 2018 | ||
| AI Enabled | Yes | - | ||
| Launched in India | Yes | - | ||
| Form factor | Touchscreen | Touchscreen | ||
| Thickness | 7.79 | - | ||
| Weight (g) | 181.00 | 156.20 | ||
| IP rating | IP69 | - | ||
| Battery capacity (mAh) | 7000 | 3200 | ||
| Removable battery | No | - | ||
| Fast charging | Super VOOC | - | ||
| Colours | Flowing Silver, Silk Blue, Suit Titanium | Ruby Red, Aurora White, Black | ||
| Dimensions (mm) | - | 154.50 x 74.80 x 7.40 | ||
| display | ||||
| Refresh Rate | 120 Hz | - | ||
| Resolution Standard | FHD+ | - | ||
| Screen size (inches) | 6.57 | 6.28 | ||
| Touchscreen | Yes | Yes | ||
| Resolution | 1080x2372 pixels | 1080x2280 pixels | ||
| hardware | ||||
| Processor | octa-core | octa-core | ||
| Processor make | MediaTek Dimensity 6400 | Qualcomm Snapdragon 660 | ||
| RAM | 8GB, 12GB | 6GB | ||
| Internal storage | 128GB, 256GB | 128GB | ||
| Expandable storage | Yes | - | ||
| Expandable storage type | microSD | - | ||
| Expandable storage up to (GB) | 2000 | - | ||
| Dedicated microSD slot | No | - | ||
| camera | ||||
| Rear camera | 50-megapixel (f/1.8) + 2-megapixel (f/2.4) | 12-megapixel | ||
| No. of Rear Cameras | 2 | - | ||
| Rear flash | Yes | LED | ||
| Front camera | 50-megapixel (f/2.4) | 12-megapixel | ||
| No. of Front Cameras | 1 | - | ||
| software | ||||
| Operating system | Android 15 | Android 8.1 | ||
| Skin | Realme UI 6 | FunTouch 4.0 | ||
| connectivity | ||||
| Wi-Fi | Yes | Yes | ||
| GPS | Yes | Yes | ||
| Bluetooth | Yes, v 5.30 | Yes, v 5.00 | ||
| Infrared | Yes | - | ||
| USB OTG | Yes | Yes | ||
| USB Type-C | Yes | - | ||
| Headphones | Type-C | 3.5mm | ||
| Number of SIMs | 2 | 2 | ||
| Active 4G on both SIM cards | Yes | - | ||
| Wi-Fi standards supported | - | 802.11 a/b/g/n/ac | ||
| sim 1 | ||||
| SIM Type | Nano-SIM | Micro-SIM | ||
| GSM/CDMA | - | GSM | ||
| 3G | - | Yes | ||
| 4G/ LTE | - | Yes | ||
| sim 2 | ||||
| SIM Type | Nano-SIM | Micro-SIM | ||
| GSM/CDMA | - | GSM | ||
| 3G | - | Yes | ||
| 4G/ LTE | - | Yes | ||
| sensors | ||||
| In-Display Fingerprint Sensor | Yes | - | ||
| Compass/ Magnetometer | Yes | Yes | ||
| Proximity sensor | Yes | Yes | ||
| Accelerometer | Yes | - | ||
| Ambient light sensor | Yes | Yes | ||
| Gyroscope | Yes | Yes | ||
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