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Add a Smartphones
 Samsung Galaxy J3 2016  Samsung Galaxy J7 2017
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| Total | 37 18 | 42 16 |
| General |
| Operating system | Android 7 | Android 8 |
| Available | Yes | Yes |
| Released (US) | June 2017 | May 2018 |
| Released (FR) | June 2017 | June 2018 |
| Street price (EUR) | 279 € | 269 € |
| Design | Candybar | Candybar |
| Color | Black Pink Gold Silver | Blue Yellow Black |
| SAR | 1.01 W/kg | 0.809 W/kg |
| Rugged | No | No |
| Size and weight |
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71.3 in
7.3 in
146.3 in
150 oz
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70.2 in
8.2 in
149.3 in
154 oz
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| Height | 146.3 in | 149.3 in |
| Width | 71.3 in | 70.2 in |
| Thickness | 7.3 in | 8.2 in |
| Weight | 150 oz | 154 oz |
| Display |
| Screen type | Super AMOLED | Super AMOLED |
| Resolution | 1280x720 pixels | 1480x720 pixels |
| Screen size | 5.2 in | 5.6 in |
| Touchscreen | Yes | Yes |
| Touchscreen type | Capacitive | Capacitive |
| Multitouch | Yes | Yes |
| Colors | 16 777 216 | 16 777 216 |
| 3D | No | No |
| PPI | 282 | 294 |
| Hardware |
| CPU | Samsung Exynos 7 Octa 7880 | Samsung Exynos 7 Octa 7870 |
| Processor frequency | 1.6 GHz | 1.6 GHz |
| Core number | Octo Core | Octo Core |
| RAM | 2048 MB | 4096 3072 |
| Internal storage | 16 GB | 64 32 |
| Removable storage | Yes | Yes |
| Memory card | microSD microSDHC microSDXC | microSD microSDHC microSDXC |
| Network |
| GSM | Yes | Yes |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| UMTS | Yes | Yes |
| UMTS Frequencies | 850 900 1700/2100 1900 2100 | 850 900 1700/2100 1900 2100 |
| HSPA | Yes | Yes |
| HSPA+ | Yes | Yes |
| Maximum theoretical bandwith | 42 Mbit/s | 42 Mbit/s |
| CDMA | No | No |
| 4G LTE | Yes | Yes |
| LTE Frequencies | 700 800 850 900 1800 2100 2500 2600 | 700 800 900 1700/2100 1800 1900 2100 2500 2600 |
| WiMAX | | No |
| Connectivity |
| Wi-Fi | Yes | Yes |
| Wi-Fi Standard | 802.11a 802.11b 802.11g 802.11n | 802.11b 802.11g 802.11n |
| Wi-Fi hotspot | Yes | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth version | 4.2 | 4.2 |
| Profiles | Advanced Audio Distribution (A2DP) Low Energy (LE) | Advanced Audio Distribution (A2DP) Low Energy (LE) |
| GPS | Yes | Yes |
| GPS type | A-GPS | A-GPS |
| USB | Yes | Yes |
| USB version | 2.0 | 2.0 |
| USB connector type | microUSB | microUSB |
| USB features | USB charging Mass storage device | USB charging Mass storage device |
| Audio | Yes | Yes |
| Headset jack | 3.5mm | 3.5mm |
| HDMI | No | No |
| DLNA | No | No |
| NFC | Yes | No |
| Dual SIM | No Yes | Yes |
| Infrared | No | No |
| Digital Camera / Video |
| Back camera | Yes | Yes |
| 3D | No | No |
| Photo resolution | 13 MP | 13 MP |
| Video resolution | 1080 p | 1080 p |
| Flash | Yes | Yes |
| Flash type | LED | LED |
| Features | Face detection Geo tagging High Dynamic Range Mode (HDR) Panorama Touch focus | Face detection Geo tagging High Dynamic Range Mode (HDR) Panorama Touch focus |
| Front camera | Yes | Yes |
| Photo resolution | 12 MP | 8 MP |
| Front Flash | No | Yes |
| Multimedia |
| Music player | Yes | Yes |
| Supported formats | eAAC+ FLAC MP3 WAV WMA | eAAC+ FLAC MP3 WAV |
| Video player | Yes | Yes |
| Supports | H.264 MPEG4 WMV | H.264 MPEG4 |
| Radio | Yes | Yes |
| FM Transmitter | No | No |
| Sensor |
| Accelerometer | Yes | Yes |
| Gyroscope | Yes | Yes |
| Proximity sensor | Yes | Yes |
| Compass | Yes | Yes |
| Barometer | No | No |
| Ambient light sensor | Yes | Yes |
| Fingerprint | Yes | Yes |
| Battery |
| Battery type | Lithium-ion | Lithium-ion |
| Capacity | 3000 mAh | 3000 mAh |
| Battery life on UMTS/LTE talk time | | 21 h |
| Battery life on music playback | | 76 h |
| Qi wireless charging | No | No |
| Quick Charge | No | No |
