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| key specs | ||||
| Display | 6.41-inch | 5.86-inch | 5.50-inch | |
| Processor | Qualcomm Snapdragon 660 | MediaTek Helio P60 | 1.6GHz octa-core | |
| Front Camera | 24.8-megapixel | 8-megapixel | 5-megapixel | |
| Rear Camera | 12-megapixel + 13-megapixel | 13-megapixel + 5-megapixel | 13-megapixel | |
| RAM | 6GB | 3GB | 2GB | |
| Storage | 128GB | 32GB | 16GB | |
| Battery Capacity | 3400mAh | 3060mAh | 3000mAh | |
| OS | Android 8.1 Oreo | Android 8.1 | Android 7.0 | |
| Resolution | 1080x2340 pixels | 720x1520 pixels | 720x1280 pixels | |
| general | ||||
| Brand | Vivo | Nokia | Samsung | |
| Model | X23 Symphony Edition | 5.1 Plus | Galaxy J7 Nxt | |
| Release date | November 1, 2018 | August 1, 2018 | July 1, 2017 | |
| Launched in India | No | Yes | - | |
| Form factor | Touchscreen | Touchscreen | Touchscreen | |
| Body type | Glass | - | - | |
| Battery capacity (mAh) | 3400 | 3060 | 3000 | |
| Colours | Arctic Morning and Starry Night Ocean | Gloss Black, Gloss White, Midnight Gloss Blue | Black, Gold | |
| Dimensions (mm) | - | 149.51 x 71.98 x 8.10 | 152.40 x 78.60 x 7.60 | |
| Weight (g) | - | 160.00 | 170.00 | |
| Removable battery | - | No | No | |
| Wireless charging | - | No | - | |
| display | ||||
| Screen size (inches) | 6.41 | 5.86 | 5.50 | |
| Touchscreen | Yes | Yes | Yes | |
| Resolution | 1080x2340 pixels | 720x1520 pixels | 720x1280 pixels | |
| Aspect ratio | - | 19:9 | - | |
| hardware | ||||
| Processor | 2.2GHz octa-core | 1.8GHz octa-core | 1.6GHz octa-core | |
| Processor make | Qualcomm Snapdragon 660 | MediaTek Helio P60 (MT6771) | - | |
| RAM | 6GB | 3GB | 2GB | |
| Internal storage | 128GB | 32GB | 16GB | |
| Expandable storage | - | Yes | Yes | |
| Expandable storage type | - | microSD | microSD | |
| Expandable storage up to (GB) | - | 400 | 256 | |
| Dedicated microSD slot | - | No | - | |
| camera | ||||
| Rear camera | 12-megapixel (f/1.8) + 13-megapixel (f/2.4) | 13-megapixel (f/2.0) + 5-megapixel | 13-megapixel | |
| Front camera | 24.8-megapixel | 8-megapixel (f/2.2) | 5-megapixel | |
| Rear autofocus | - | Phase detection autofocus | - | |
| Rear flash | - | LED | LED | |
| Front autofocus | - | No | - | |
| Front flash | - | - | LED | |
| software | ||||
| Operating system | Android 8.1 Oreo | Android 8.1 | Android 7.0 | |
| Skin | Funtouch OS | - | - | |
| connectivity | ||||
| Wi-Fi | Yes | Yes | Yes | |
| GPS | Yes | Yes | Yes | |
| Bluetooth | Yes, v 4.00 | Yes, v 4.20 | Yes, v 4.10 | |
| USB OTG | Yes | Yes | No | |
| Number of SIMs | 2 | 2 | 2 | |
| Wi-Fi standards supported | - | 802.11 a/b/g/n/ac | 802.11 b/g/n | |
| NFC | - | No | No | |
| USB Type-C | - | Yes | - | |
| Headphones | - | 3.5mm | Yes | |
| FM | - | Yes | No | |
| Active 4G on both SIM cards | - | Yes | - | |
| Infrared | - | - | No | |
| Wi-Fi Direct | - | - | No | |
| Mobile High-Definition Link (MHL) | - | - | No | |
| sim 1 | ||||
| GSM/CDMA | GSM | GSM | GSM | |
| 4G/ LTE | Yes | Yes | Yes | |
| SIM Type | - | Nano-SIM | Micro-SIM | |
| 3G | - | Yes | Yes | |
| sim 2 | ||||
| GSM/CDMA | GSM | GSM | GSM | |
| 4G/ LTE | Yes | Yes | No | |
| SIM Type | - | Nano-SIM | Micro-SIM | |
| 3G | - | Yes | No | |
| sensors | ||||
| Face unlock | Yes | Yes | - | |
| Fingerprint sensor | Yes | - | - | |
| Compass/ Magnetometer | Yes | Yes | No | |
| Proximity sensor | Yes | Yes | Yes | |
| Accelerometer | Yes | Yes | Yes | |
| Ambient light sensor | Yes | Yes | Yes | |
| Gyroscope | - | Yes | 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 | - | - | ||
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