April 17th, 2018 
Ali Mohamed 
Samsung Galaxy J7 Duo has Android 8.0 (Oreo), It offers an internal memory of 32 GB with 4 GB RAM, It presents a screen of HD resolution, And it comes with a battery capacity of 3000 mAh .
Samsung Galaxy J7 Duo specifications
General
| Announce date | 2018, April |
| Release date | 2018, April |
| Status | Available |
| Height × Width | 153.5 mm x 77.2 mm (6.04 inches x 3.04 inches) |
| Thickness | 8.2 mm (0.32 inches) |
| Weight | 1774 g (6.14 ounces) |
| SIM card | Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by) |
| Colors | * Black * White * Gold * Rose Gold |
Display
| Display type | Super AMOLED capacitive touchscreen, 16M colors |
| Screen size | 5.5 inches (83.4 cm)2 (121.76 mm x 68.49 mm) |
| Screen-to-Body | 70.4% |
| Screen resolution | 720 x 1280 pixels [ HD resolution ] |
| Pixel density | ~267 ppi (pixels per inch) |
| Touchscreen type | Multi-touch screen |
Main Camera
| Rear camera | Dual camera : 13 MP, f/1.9 + 5 MP, f/1.9 (depth) |
| Camera features | * LED flash * Autofocus * Geo-tagging * Touch focus * Face detection * HDR * Panorama * Digital zoom |
| Rear video | 1080p@30fps [ Full HD video ] |
Selfie Camera
| Front camera | 8 MP, f/1.9 |
| Camera features | LED flash |
| Front video | 1080p@30fps |
Memory
| Card slot | MicroSDXC up to 256 GB (dedicated slot) |
| Internal memory | 32 GB |
| RAM | 4 GB RAM |
Battery
| Battery type | Lithium-ion (Li-Ion) |
| Battery model | Removable |
| Battery capacity | 3000 mAh |
Platform
| Operating System | Android 8.0 (Oreo) Upgradable to Android 9.0 (Pie) |
| Chipset | Exynos 7885 (14 nanometers) |
| Processor | Octa-core (2×2.2 GHz & 6×1.6 GHz) |
| Graphics | Mali-G71 |
Sensors
| Fingerprint | yes (front-mounted) |
| Accelerometer | yes |
| Proximity | yes |
| Ambient light | yes |
Networks & Connectivity
| 2G | GSM – SIM 1 & SIM 2 |
| 3G | HSDPA |
| 4G | LTE |
| 3G Speed | HSPA |
| 4G Speed | LTE Cat4 150/50 Mbps |
| GPRS | yes |
| EDGE | yes |
| Wireless LAN | * Wi-Fi 802.11 b/g/n * Wi-Fi hotspot * Wi-Fi Direct * Dual-band |
| Bluetooth | v4.2 |
| Bluetooth Features | * LE * A2DP |
| USB | MicroUSB 2.0 |
| GPS | * GPS * A-GPS * BDS (BeiDou) * GLONASS |
| Radio | FM radio |
Sound
| Types of alerts | * MP3 * Vibration * WAV ringtones |
| Loudspeaker | yes |
| Headphone jack | yes, 3.5mm jack |
Features
| Messages | * SMS (threaded view) * Push Email * MMS * IM |
| Music player | MP3/WAV/WMA/AAC/FLAC player |
| Video player | MP4/Xvid/WMV/H.264 player |
| Browser | HTML5 |
Other features
| – Document viewer – Photo/video editor |
Samsung Galaxy J7 Duo disadvantages
| Water/dust proof | No |
| Screen protection | No |
| Fast charging | No |
| NFC | No |
| Compass | No |
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