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- Samsung Galaxy A9 Star vs Samsung Galaxy J7 Prime 2 vs Samsung Galaxy J7 Nxt
Samsung Galaxy A9 Star vs Samsung Galaxy J7 Prime 2 vs Samsung Galaxy J7 Nxt comparison
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| key specs | ||||
| Display | 6.28-inch | 5.50-inch | 5.50-inch | |
| Processor | Qualcomm Snapdragon 660 | Samsung Exynos 7 Octa 7870 | 1.6GHz octa-core | |
| Front Camera | 24-megapixel | 13-megapixel | 5-megapixel | |
| Rear Camera | 16-megapixel + 24-megapixel | 13-megapixel | 13-megapixel | |
| RAM | 4GB | 3GB | 2GB | |
| Storage | 64GB | 32GB | 16GB | |
| Battery Capacity | 3700mAh | 3300mAh | 3000mAh | |
| OS | Android 8.0 | Android 7.0 | Android 7.0 | |
| Resolution | 1880x2220 pixels | 1080x1920 pixels | 720x1280 pixels | |
| general | ||||
| Brand | Samsung | Samsung | Samsung | |
| Model | Galaxy A9 Star | Galaxy J7 Prime 2 | Galaxy J7 Nxt | |
| Release date | June 1, 2018 | March 1, 2018 | July 1, 2017 | |
| Form factor | Touchscreen | Touchscreen | Touchscreen | |
| Dimensions (mm) | 162.40 x 77.00 x 7.50 | 151.70 x 75.00 x 8.00 | 152.40 x 78.60 x 7.60 | |
| Weight (g) | 188.00 | 170.00 | 170.00 | |
| Battery capacity (mAh) | 3700 | 3300 | 3000 | |
| Fast charging | Proprietary | - | - | |
| Colours | Black, White | Black | Black, Gold | |
| Launched in India | - | Yes | - | |
| Removable battery | - | - | No | |
| display | ||||
| Screen size (inches) | 6.28 | 5.50 | 5.50 | |
| Touchscreen | Yes | Yes | Yes | |
| Resolution | 1880x2220 pixels | 1080x1920 pixels | 720x1280 pixels | |
| Aspect ratio | 3:2 | 16:9 | - | |
| Pixels per inch (PPI) | 392 | 401 | - | |
| hardware | ||||
| Processor | 2.2GHz octa-core (4x2.2GHz + 4x1.8GHz) | 1.6GHz octa-core | 1.6GHz octa-core | |
| Processor make | Qualcomm Snapdragon 660 | Samsung Exynos 7 Octa 7870 | - | |
| RAM | 4GB | 3GB | 2GB | |
| Internal storage | 64GB | 32GB | 16GB | |
| 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) | 13-megapixel (f/1.9) | 13-megapixel | |
| Rear autofocus | Phase detection autofocus | Yes | - | |
| Rear flash | LED | LED | LED | |
| Front camera | 24-megapixel (f/2.0) | 13-megapixel (f/1.9) | 5-megapixel | |
| Front flash | - | - | LED | |
| software | ||||
| Operating system | Android 8.0 | Android 7.0 | Android 7.0 | |
| connectivity | ||||
| Wi-Fi | Yes | Yes | Yes | |
| Wi-Fi standards supported | 802.11 a/b/g/n/ac | 802.11 b/g/n | 802.11 b/g/n | |
| GPS | Yes | Yes | Yes | |
| Bluetooth | Yes, v 5.00 | Yes, v 4.10 | Yes, v 4.10 | |
| NFC | Yes | - | No | |
| USB Type-C | Yes | - | - | |
| FM | Yes | Yes | No | |
| Number of SIMs | 2 | 2 | 2 | |
| Wi-Fi Direct | Yes | - | No | |
| Micro-USB | - | Yes | - | |
| Headphones | - | 3.5mm | Yes | |
| Infrared | - | - | No | |
| USB OTG | - | - | No | |
| Mobile High-Definition Link (MHL) | - | - | No | |
| sim 1 | ||||
| SIM Type | Nano-SIM | Nano-SIM | Micro-SIM | |
| GSM/CDMA | GSM + CDMA | GSM | GSM | |
| 3G | Yes | Yes | Yes | |
| 4G/ LTE | Yes | Yes | Yes | |
| sim 2 | ||||
| SIM Type | Nano-SIM | - | Micro-SIM | |
| GSM/CDMA | GSM + CDMA | - | GSM | |
| 3G | Yes | - | No | |
| 4G/ LTE | Yes | - | No | |
| sensors | ||||
| Fingerprint sensor | Yes | Yes | - | |
| Proximity sensor | Yes | Yes | Yes | |
| Accelerometer | Yes | Yes | Yes | |
| Gyroscope | Yes | - | No | |
| Compass/ Magnetometer | - | - | No | |
| Ambient light sensor | - | - | Yes | |
| Barometer | - | - | No | |
| Temperature sensor | - | - | No | |
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