| Local Name | Galaxy J7 Duo |
| Technology | GSM / HSPA / LTE |
| 4G Bands | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) |
| 3G Bands | HSDPA 850 / 900 / 1900 / 2100 |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) |
| Speed | HSPA, LTE Cat4 150/50 Mbps |
| Announced | 2018, April |
| Status | Available. Released 2018, April |
| Dimensions | 153.5 x 77.2 x 8.2 mm (6.04 x 3.04 x 0.32 in) |
| Weight | 174 g (6.14 oz) |
| SIM | Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by) |
| Display Type | Super AMOLED capacitive touchscreen, 16M colors |
| Screen Size | 5.5 inches, 83.4 cm2 (~70.4% screen-to-body ratio) |
| Resolution | 720 x 1280 pixels, 16:9 ratio (~267 ppi density) |
| OS | Android 8.0 (Oreo), upgradable to Android 9.0 (Pie) |
| Chipset | Exynos 7885 (14 nm) |
| CPU | Octa-core (2x2.2 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53) |
| GPU | Mali-G71 |
| Card Slot | microSDXC (dedicated slot) |
| Internal Memory | 32GB 4GB RAM | eMMC 5.1 |
| Camera Features | LED flash |
| Video | 1080p@30fps |
| Loudspeaker | Yes |
| 3.5mm Jack | Yes |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| Bluetooth | 4.2, A2DP, LE |
| GPS | Yes, with A-GPS, GLONASS, BDS |
| Radio | FM radio |
| USB | Yes |
| Sensors | Fingerprint (front-mounted), accelerometer, proximity |
| Features Summary | ANT+ |
| Battery | Removable Li-Ion 3000 mAh battery |
| Colors | Black, Gold, Rose Gold, White |
