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- Samsung Galaxy A9 Star vs Vivo X21 vs Samsung Galaxy A8+ (2018)
Samsung Galaxy A9 Star vs Vivo X21 vs Samsung Galaxy A8+ (2018) comparison
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| key specs | ||||
| Display | 6.28-inch | 6.28-inch | 6.00-inch | |
| Processor | Qualcomm Snapdragon 660 | Qualcomm Snapdragon 660 | 1.6GHz octa-core | |
| Front Camera | 24-megapixel | 12-megapixel | 16-megapixel | |
| Rear Camera | 16-megapixel + 24-megapixel | 12-megapixel + 5-megapixel | 16-megapixel | |
| RAM | 4GB | 6GB | 6GB | |
| Storage | 64GB | 128GB | 64GB | |
| Battery Capacity | 3700mAh | 3200mAh | 3500mAh | |
| OS | Android 8.0 | Android 8.1 | Android 7.1.1 | |
| Resolution | 1880x2220 pixels | 1080x2280 pixels | 1080x2220 pixels | |
| general | ||||
| Brand | Samsung | Vivo | Samsung | |
| Model | Galaxy A9 Star | X21 | Galaxy A8+ (2018) | |
| Release date | June 1, 2018 | March 1, 2018 | December 1, 2017 | |
| Form factor | Touchscreen | Touchscreen | Touchscreen | |
| Dimensions (mm) | 162.40 x 77.00 x 7.50 | 154.50 x 74.80 x 7.40 | 159.90 x 75.70 x 8.30 | |
| Weight (g) | 188.00 | 156.20 | 191.00 | |
| Battery capacity (mAh) | 3700 | 3200 | 3500 | |
| Fast charging | Proprietary | Proprietary | - | |
| Colours | Black, White | Black, Gold | Black, Orchid Grey, Gold, Blue | |
| Launched in India | - | Yes | - | |
| Removable battery | - | No | - | |
| display | ||||
| Screen size (inches) | 6.28 | 6.28 | 6.00 | |
| Touchscreen | Yes | Yes | Yes | |
| Resolution | 1880x2220 pixels | 1080x2280 pixels | 1080x2220 pixels | |
| Aspect ratio | 3:2 | 19:9 | - | |
| Pixels per inch (PPI) | 392 | - | - | |
| hardware | ||||
| Processor | 2.2GHz octa-core (4x2.2GHz + 4x1.8GHz) | 2.2GHz octa-core | 1.6GHz octa-core | |
| Processor make | Qualcomm Snapdragon 660 | Qualcomm Snapdragon 660 | - | |
| RAM | 4GB | 6GB | 6GB | |
| Internal storage | 64GB | 128GB | 64GB | |
| Expandable storage | Yes | Yes | Yes | |
| Expandable storage type | microSD | microSD | microSD | |
| Expandable storage up to (GB) | 256 | 256 | 256 | |
| camera | ||||
| Rear camera | 16-megapixel (f/1.7) + 24-megapixel (f/1.7) | 12-megapixel (f/1.8, 1.4-micron) + 5-megapixel (f/2.4) | 16-megapixel | |
| Rear autofocus | Phase detection autofocus | Phase detection autofocus | - | |
| Rear flash | LED | LED | LED | |
| Front camera | 24-megapixel (f/2.0) | 12-megapixel (f/2.0) | 16-megapixel | |
| software | ||||
| Operating system | Android 8.0 | Android 8.1 | Android 7.1.1 | |
| Skin | - | FunTouch 4.0 | - | |
| connectivity | ||||
| Wi-Fi | Yes | Yes | Yes | |
| Wi-Fi standards supported | 802.11 a/b/g/n/ac | 802.11 a/b/g/n/ac | 802.11 a/b/g/n/ac | |
| GPS | Yes | Yes | Yes | |
| Bluetooth | Yes, v 5.00 | Yes, v 5.00 | Yes, v 5.00 | |
| NFC | Yes | No | Yes | |
| USB Type-C | Yes | - | - | |
| FM | Yes | No | - | |
| Number of SIMs | 2 | 2 | - | |
| Wi-Fi Direct | Yes | - | - | |
| Infrared | - | No | - | |
| USB OTG | - | Yes | - | |
| Micro-USB | - | Yes | - | |
| Headphones | - | 3.5mm | 3.5mm | |
| sim 1 | ||||
| SIM Type | Nano-SIM | Nano-SIM | - | |
| GSM/CDMA | GSM + CDMA | GSM | - | |
| 3G | Yes | Yes | - | |
| 4G/ LTE | Yes | Yes | - | |
| sim 2 | ||||
| SIM Type | Nano-SIM | Nano-SIM | - | |
| GSM/CDMA | GSM + CDMA | GSM | - | |
| 3G | Yes | Yes | - | |
| 4G/ LTE | Yes | Yes | - | |
| sensors | ||||
| Fingerprint sensor | Yes | Yes | - | |
| Proximity sensor | Yes | Yes | Yes | |
| Accelerometer | Yes | Yes | Yes | |
| Gyroscope | Yes | Yes | Yes | |
| Compass/ Magnetometer | - | Yes | Yes | |
| Ambient light sensor | - | Yes | - | |
| Barometer | - | - | Yes | |
| 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 | - | |||
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