Samsung Galaxy J2 (2017) vs Samsung Galaxy J2 Ace vs Samsung Galaxy J2 Pro vs Samsung Galaxy J2 (2016) comparison
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| key specs |
| Display | 4.70-inch | 5.00-inch | 5.00-inch | 5.00-inch |
| Processor | Samsung Exynos 3 Quad 3475 | MediaTek MT6737T | 1.5GHz quad-core | 1.5GHz quad-core |
| Front Camera | 2-megapixel | 5-megapixel | 5-megapixel | 5-megapixel |
| Rear Camera | 5-megapixel | 8-megapixel | 8-megapixel | 8-megapixel |
| RAM | 1GB | 1.5GB | 2GB | 1.5GB |
| Storage | 8GB | 8GB | 16GB | 8GB |
| Battery Capacity | 2000mAh | 2600mAh | 2600mAh | 2600mAh |
| OS | Android | Android 6.0 | Android 6.0.1 | Android 6.0 |
| Resolution | 540x960 pixels | 540x960 pixels | 720x1280 pixels | 720x1280 pixels |
| general |
| Brand | Samsung | Samsung | Samsung | Samsung |
| Model | Galaxy J2 (2017) | Galaxy J2 Ace | Galaxy J2 Pro | Galaxy J2 (2016) |
| Release date | October 1, 2017 | January 1, 2017 | - | July 1, 2016 |
| Form factor | Touchscreen | Touchscreen | Touchscreen | Touchscreen |
| Dimensions (mm) | 136.50 x 69.00 x 8.40 | - | 142.40 x 71.10 x 8.00 | 142.40 x 71.10 x 8.00 |
| Weight (g) | 130.00 | - | - | - |
| Battery capacity (mAh) | 2000 | 2600 | 2600 | 2600 |
| Removable battery | Yes | No | Yes | Yes |
| Colours | Black, Gold | Gold, Black, Silver | Gold, Black, Silver | Gold, Silver, Black |
| display |
| Screen size (inches) | 4.70 | 5.00 | 5.00 | 5.00 |
| Touchscreen | Yes | Yes | Yes | Yes |
| Resolution | 540x960 pixels | 540x960 pixels | 720x1280 pixels | 720x1280 pixels |
| hardware |
| Processor | 1.3GHz quad-core | 1.4GHz one-core | 1.5GHz quad-core | 1.5GHz quad-core |
| Processor make | Samsung Exynos 3 Quad 3475 | MediaTek MT6737T | - | - |
| RAM | 1GB | 1.5GB | 2GB | 1.5GB |
| Internal storage | 8GB | 8GB | 16GB | 8GB |
| Expandable storage | Yes | Yes | Yes | Yes |
| Expandable storage type | microSD | microSD | microSD | microSD |
| Expandable storage up to (GB) | 128 | 256 | 128 | 128 |
| camera |
| Rear camera | 5-megapixel | 8-megapixel | 8-megapixel | 8-megapixel |
| Rear flash | LED | LED | Yes | LED |
| Front camera | 2-megapixel | 5-megapixel | 5-megapixel | 5-megapixel |
| Front flash | - | LED | - | - |
| software |
| Operating system | Android | Android 6.0 | Android 6.0.1 | Android 6.0 |
| connectivity |
| Wi-Fi | Yes | Yes | Yes | Yes |
| Wi-Fi standards supported | 802.11 b/g/n | 802.11 b/g/n | 802.11 b/g/n | - |
| GPS | Yes | No | Yes | Yes |
| Bluetooth | Yes | No, v 4.20 | Yes, v 4.00 | Yes |
| NFC | No | No | No | No |
| Infrared | No | No | No | No |
| USB OTG | Yes | No | Yes | No |
| Headphones | 3.5mm | - | 3.5mm | 3.5mm |
| FM | Yes | No | Yes | Yes |
| Number of SIMs | 2 | 2 | 2 | 1 |
| Wi-Fi Direct | No | Yes | No | No |
| Mobile High-Definition Link (MHL) | No | No | No | No |
| sim 1 |
| SIM Type | Micro-SIM | - | Micro-SIM | Micro-SIM |
| GSM/CDMA | GSM | - | GSM | GSM |
| 3G | Yes | No | Yes | Yes |
| 4G/ LTE | Yes | No | Yes | Yes |
| sim 2 |
| SIM Type | Micro-SIM | - | Micro-SIM | - |
| GSM/CDMA | GSM | - | GSM | - |
| 3G | Yes | No | Yes | - |
| 4G/ LTE | Yes | No | Yes | - |
| sensors |
| Compass/ Magnetometer | No | No | No | No |
| Proximity sensor | Yes | Yes | Yes | Yes |
| Accelerometer | Yes | Yes | Yes | Yes |
| Ambient light sensor | Yes | No | No | Yes |
| Gyroscope | Yes | No | No | Yes |
| Barometer | No | No | No | No |
| Temperature sensor | No | No | No | No |