| Hardware and OS | Samsung Galaxy J7 Duo | |
| Operating system | Android 8.0 (Oreo) | |
| Processor | Octa-core (2x2.2 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53) | |
| Chipset | Exynos 7885 Octa (14 nm) | |
| GPU | Mali-G71 | |
| Internal memory | 32 GB, 4 GB RAM | |
| External memory | microSD, up to 256 GB (dedicated slot) | |
| Display | Samsung Galaxy J7 Duo | other phones |
| Type | Super AMOLED | |
| Size | 5.5" inc | |
| Resolution | 720 x 1280 px | |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 70.4% | |
| Display area | 83.4 cm2 | |
| Display aspect ratio | 16:9 (height:width) | |
| Pixel Density | 267 PPI | |
| Colors | 16M | |
| Connectivity | Samsung Galaxy J7 Duo | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | |
| 4G Network | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot | |
| Network | GSM / HSPA / LTE | |
| SIM card | Single SIM (Micro-SIM)Dual SIM (Micro-SIM, dual stand-by) | |
| Bluetooth | 4.2, A2DP, LE | |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes, with A-GPS, GLONASS, BDS | |
| Speed | HSPA, LTE Cat4 150/50 Mbps | |
| USB | Yes | |
| Camera | Samsung Galaxy J7 Duo | other phones |
| Main camera | 13 MP, Dual | |
| Specs | 13 MP, f/1.9, AF
-5 MP, f/1.9, depth sensor | |
| Features | LED flash, panorama, HDR | |
| Video | 1080p@30fps | |
| Selfie camera | 8 MP, Single | |
| Multimedia | Samsung Galaxy J7 Duo | other phones |
| 3.5 mm Jack | Yes | |
| Radio | FM radio | |
| Design | Samsung Galaxy J7 Duo | other phones |
| Colors | Black, Gold, Rose Gold, White | |
| Dimensions | 153.5 x 77.2 x 8.2 mm | |
| Weight | 174 g | |
| Battery | Samsung Galaxy J7 Duo | other phones |
| Battery capacity | 3000 mAh, Removable Li-Ion | |
| Other | Samsung Galaxy J7 Duo | other phones |
| Release date | 2018, April | |
| Sensors | Fingerprint (front-mounted), accelerometer, proximity | |
