Samsung Galaxy J7 Duo All specs
Full specifications phone: Samsung Galaxy J7 Duo specs, detailed technical information, features, price and review. All about this phone.
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The Samsung Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) is a good Android phone with 2.2GHz Octa-core processor that allows run games and heavy applications.
An advantage of the Samsung Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) is the possibility of using two mobile carriers, a Dual-SIM device with two SIM card slots.
Good connectivity of this device includes Bluetooth 5.0 + A2DP/LE, WiFi 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO, but it lacks NFC connection.
Including the battery, the Samsung Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) phone has 174 grams and it's a very thin device, only 8.2mm.
Summary
*depends on the model⚙️ CPU: Samsung Exynos 7885
🔥 AnTuTu
98104 (v7)
🔥 AnTuTu
98104 (v7)
🤖 Android 8.0
🔄 Android 10
🔄 Android 10
📱 5.5"
Super AMOLED
60Hz
Super AMOLED
60Hz
🔳 RAM: 3GB / 4GB*
💽 ROM: 32GB
💽 ROM: 32GB
🔌 WIFI5, BT5.0, FM
📷 (dual camera) 13MP + 5MP
🤳 (front) 8MP
🤳 (front) 8MP
🔋 3000mAh
📱 Model features | |
| Samsung Galaxy J7 Duo | |
| Model | Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) |
| Other model names | Galaxy J7 Duo (32GB + 3GB RAM) Dual-Sim, Samsung J720 |
| Country or region available |      (Europe), (Global, International), Singapore, Thailand, Vietnam |
| Brand | Samsung |
| Release date | 4/1/2018 |
| Depth | 8.2 millimeters (0.32 inches) |
| Size (width x height) | 77.2 x 153.5 millimeters (3.04 x 6.04 in) |
| Weight | 174 grams (6.09 ounces) |
| Build, materials | Plastic body, glass front |
| Protection against water and others | Not supported |
📲 Display | |
| Samsung Galaxy J7 Duo | |
| Display type | Super AMOLED |
| Screen size | 5.5" inches |
| Screen-to-body ratio | ~70.4% (screen-to-body ratio) |
| Display resolution | 720x1280 pixels (16:9) |
| Touchscreen | Capacitive Multitouch |
| Pixel density (dot pitch) | 267 PPI |
| Colors | 16 million |
| Scratch-resistant glass | Gorilla Glass |
| Refresh rate | 60Hz |
| Display features | Not supported |
🤖 Operating System | |
| Samsung Galaxy J7 Duo | |
| System version | Android 8.0 Oreo |
| Firmware update | Android 10 |
| User Interface | One UI 2.0 |
⚙️ Processor | |
| Samsung Galaxy J7 Duo | |
| Chipset | 64bit: Samsung Exynos 7885 (14nm) |
| CPU | Octa-core, 2 processors: 2x 2.2GHz ARM Cortex-A73 (Dual-core) 6x 1.6GHz ARM Cortex-A53 (Hexa-core) |
| GPU graphical controller | ARM Mali-G71 MP2 |
| Performance (benchmark) | AnTuTu: 98104 (v7) |
💽 Memory and storage | |
| Samsung Galaxy J7 Duo | |
| RAM memory | 3GB LPDDR4 |
| Internal storage | 32GB (21GB available) eMMC 5.1 |
| External storage | Until 256GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | |
| Samsung Galaxy J7 Duo | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) micro-SIM (3FF) |
| Maximum Download / Upload | 150/50 Mbps |
| Network technology | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details |
| GSM MHz band | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat4 (1, 3, 5, 7, 8, 20) TD-LTE (38, 40, 41) |
| Primary 5G network | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE |
| Secondary 2G network | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 850/900/1900/2100 |
| Secondary 4G network | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ |
📷 Camera | |
| Samsung Galaxy J7 Duo | |
| Back camera (main camera) | (dual camera) 13 megapixels 5MP depth f/1.9 |
| Main camera resolution | 4128x3096 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps |
| Flash | LED flash on both cameras |
| Focal aperture | f/1.9 (aperture) |
| Focal length | feature not registered |
| Sensor size | feature not registered |
| Pixel size | feature not registered |
| Autofocus | Autofocus |
| Touch focus | Supported |
| Image stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection |
| BSI sensor | Not supported |
| HDR | HDR photo only main camera |
| Camera extras | feature not registered |
📸 Front camera | |
| Samsung Galaxy J7 Duo | |
| Front camera (secondary) | 8 megapixels |
| Front camera resolution | 3264x2448 pixels |
| Video recording (secondary) | Full HD (1920x1080) |
| Front flash | LED |
| Focal aperture | f/1.9 (aperture) |
| Focal length | feature not registered |
| Sensor size | feature not registered |
| Pixel size | feature not registered |
🔉 Sound and multimedia | |
| Samsung Galaxy J7 Duo | |
| Loudspeaker | Mono sound (not stereo) |
| Active noise cancellation | Not supported |
| Radio | FM |
| TV | Not supported |
| Video formats | MP4, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | |
| Samsung Galaxy J7 Duo | |
| USB | MicroUSB 2.0 |
| Audio output | 3.5mm jack |
| TV output | Not supported |
| Bluetooth | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou |
| NFC | Not supported |
| Infrared port | Not supported |
🧭 Sensors | |
| Samsung Galaxy J7 Duo | |
| Sensors | Accelerometer ANT+ Face unlock Fingerprint sensor (front-mounted) Proximity sensor |
| Vibrating alert | Supported |
🔋 Battery | |
| Samsung Galaxy J7 Duo | |
| Battery type | Li-Ion: Lithium-Ion (Removable) |
| Battery capacity | 3000 mAh |
| Charger, watts | Wired charging |
| Inductive / wireless charging | Not supported |
| Talk time autonomy | 20 hours |
| Standby | feature not registered |
➕ Other features | |
| Samsung Galaxy J7 Duo | |
| Call control | Voice dialing, Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported |
| Video calling | Supported |
| Ringtones | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 |
| Antenna | Internal antenna |
| Qwerty physical keyboard | Not supported |
| Miscellaneous | • Colors: Black, Gold, Rose Gold, White • Samsung Pay |
☢️ Radiation rate | |
| Samsung Galaxy J7 Duo | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.543W/kg (head), 1.397W/kg (body) |
Samsung Galaxy J7 Duo versions (variations) with different specifications
Samsung Galaxy J7 Duo (SM-J720F)Samsung Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)Samsung Galaxy J7 Duo (SM-J720F/DS 32GB/4GB)Samsung Galaxy J7 Duo (SM-J720M)Samsung Galaxy J7 Duo (SM-J720M/DS) Samsung Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) vs 
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