Vivo Y31 5G vs Redmi 15 5G comparison
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| key specs |
| Display | 6.68-inch | 6.90-inch |
| Processor | Qualcomm Snapdragon 4 Gen 2 | - |
| Front Camera | 8-megapixel | 8-megapixel |
| Rear Camera | 50-megapixel + 0.08-megapixel | 50-megapixel |
| RAM | 4GB, 6GB | 6GB, 8GB |
| Storage | 128GB | 128GB, 256GB |
| Battery Capacity | 6,500mAh | 7000mAh |
| OS | Android 15 | Android 15 |
| Resolution | 1,608x720 pixels | 1080x2340 pixels |
| general |
| Brand | Vivo | Redmi |
| Model | Y31 5G | 15 5G |
| Release date | September 15, 2025 | August 19, 2025 |
| Launched in India | Yes | Yes |
| Form factor | Touchscreen | Touchscreen |
| Body type | Plastic | - |
| Dimensions (mm) | 166.14 x 77.01 x 8.39 | 168.48 x 80.45 x 8.40 |
| Weight (g) | 209.00 | 217.00 |
| IP rating | IP68 | IP64 |
| Battery capacity (mAh) | 6,500 | 7000 |
| Removable battery | No | - |
| Fast charging | 44W Flash Charge | 33W Fast Charging |
| Wireless charging | No | - |
| Colours | Rose Red and Diamond Green | Frosted White, Midnight Black, Sandy Purple |
| AI Enabled | - | Yes |
| display |
| Refresh Rate | 120 Hz | 144 Hz |
| Screen size (inches) | 6.68 | 6.90 |
| Touchscreen | Yes | Yes |
| Resolution | 1,608x720 pixels | 1080x2340 pixels |
| Pixels per inch (PPI) | 264 | 374 |
| Resolution Standard | - | FHD+ |
| hardware |
| Processor | 2.2GHz MHz octa-core | - |
| Processor make | Qualcomm Snapdragon 4 Gen 2 | Qualcomm Snapdragon 6s Gen 3 |
| RAM | 4GB, 6GB | 6GB, 8GB |
| Internal storage | 128GB | 128GB, 256GB |
| Expandable storage | Yes | - |
| Expandable storage type | microSD | - |
| Expandable storage up to (GB) | 2TB | - |
| camera |
| Rear camera | 50-megapixel (f/f/1.8) + 0.08-megapixel (f/f/3.0) | 50-megapixel (f/1.75) |
| No. of Rear Cameras | 2 | 2 |
| Rear flash | Yes | Yes |
| Front camera | 8-megapixel (f/f/2.0) | 8-megapixel (f/2.2) |
| No. of Front Cameras | 1 | 1 |
| Pop-Up Camera | No | - |
| software |
| Operating system | Android 15 | Android 15 |
| Skin | Funtouch OS 15 | HyperOS 2.0 |
| connectivity |
| Wi-Fi | Yes | Yes |
| GPS | Yes | Yes |
| Bluetooth | Yes, v 4.20 | Yes |
| NFC | No | - |
| USB Type-C | Yes | Yes |
| Number of SIMs | 2 | 2 |
| Infrared | - | Yes |
| sim 1 |
| SIM Type | Nano-SIM | - |
| GSM/CDMA | GSM | - |
| 4G/ LTE | Yes | - |
| 5G | Yes | - |
| sim 2 |
| SIM Type | Nano-SIM | - |
| GSM/CDMA | GSM | - |
| 4G/ LTE | Yes | - |
| 5G | Yes | - |
| sensors |
| Fingerprint sensor | Yes | Yes |
| Compass/ Magnetometer | Yes | Yes |
| Proximity sensor | Yes | Yes |
| Accelerometer | Yes | Yes |
| Ambient light sensor | Yes | - |
| Gyroscope | No | - |
| Barometer | No | - |
| Temperature sensor | No | - |
| ratings |
| Overall NDTV Rating | - | Read Review |
| Design Rating | - | |
| Display Rating | - | |
| Software Rating | - | |
| Performance Rating | - | |
| Battery Life Rating | - | |
| Camera Rating | - | |
| Value for Money Rating | - | |