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Samsung Galaxy J7 Duo SM-J720F/DS 3GB/32GB All specs

Full specifications phone: Samsung Galaxy J7 Duo SM-J720F/DS 3GB/32GB specs, detailed technical information, features, price and review. All about this phone.

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(3.4/5)
Samsung Galaxy J7 Duo

The Samsung Galaxy J7 Duo SM-J720F/DS 3GB/32GB 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 3GB/32GB 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 version A2DP/LE, WiFi 802.11 a/b/g/n/ac + MIMO (2.4Ghz, 5Ghz), but it lacks NFC connection.

Including the battery, the Samsung Galaxy J7 Duo SM-J720F/DS 3GB/32GB phone has 174 grams and it's a very thin device, only 8.2 mm.

Model and physical featuresSamsung Galaxy J7 Duo
Model
Also known asGalaxy J7 Duo 3GB RAM + 32GB Dual-Sim, Samsung J720
Country or region availableEuropeSingaporeThailandVarious (International)Vietnam
BrandSamsung
Release dateApril, 2018
Depth8.2 millimeters (0.32 inches)
Size (width x height)77.2 x 153.5 millimeters (3.04 x 6.04 in)
Weight174 grams (6.09 ounces)
Qwerty physical keyboardNot supported
AntennaInternal antenna
Build, materialsPlastic body, front glass
Protection against water and othersNot supported
Operating system (OS)Samsung Galaxy J7 Duo
Operating systemAndroid 8.0 Oreo
Firmware updatefeature not registered
HardwareSamsung Galaxy J7 Duo
Architecture - Chipset64bit - Samsung Exynos 7 Octa 7885 (14nm)
CPU processorOcta-Core, 2 processors:
2.2Ghz Dual-Core ARM Cortex-A73
1.6Ghz Hexa-Core ARM Cortex-A53
GPU graphical controllerARM Mali-G71 MP2
RAM memory3GB LPDDR4
Internal storage32GB (21GB user available)
External storageUntil 256GB microSD, microSDHC, microSDXC
(dedicated slot)
DisplaySamsung Galaxy J7 Duo
Display typeSuper AMOLED
Screen size5.5" inches
Screen-to-body ratio~70.4% (screen-to-body ratio)
TouchscreenCapacitive Multitouch
Display resolution720x1280 pixels
Pixel density (dot pitch)267 PPI
Colors16 million
Scratch-resistant glassGorilla Glass
Mobile networks and dataSamsung Galaxy J7 Duo
Dual-SIMDual SIM Standby - Call active on one sim card
(dedicated slot)
SIM card2 slots Dual-SIM
micro-SIM (3FF)
GSM Mhz bandQuad-Band 850/900/1800/1900
Primary 2G networkGSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1900/2100
Primary 4G/5G networkLTE Cat (Bands 1,3,5,7,8,20)
TD-LTE (Bands 38,40,41)
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE
Secondary 2G networkGSM 850/900/1800/1900
Secondary 3G networkNot supported
Secondary 4G networkNot supported
Secondary data networkGPRS, EDGE
Maximum download/upload150/50 Mbps
Messaging and callingSamsung Galaxy J7 Duo
MessagingSMS (T9), MMS, E-mail, Push mail
SpeakerphoneSupported
Video callingSupported
Call controlVoice dialing, Voice recorder
Primary / back cameraSamsung Galaxy J7 Duo
Main camera(dual camera)
13 megapixels
5MP depth sensor (f/1.9)
Main camera resolution4128x3096 pixels
Video recording (primary)Full HD (1920x1080 pixels) 30 fps
FlashLED flash on both cameras
Focal aperturef/1.9 (aperture)
Focal lengthfeature not registered
Sensor sizefeature not registered
Pixel sizefeature not registered
AutofocusAutofocus
Touch focusSupported
Image stabilizationEIS: Digital stabilization
ZoomOnly digital zoom
Face/smile detectionFace detection, Smile detection
BSI sensorNot supported
HDRHDR photo only main camera
Front / secondary cameraSamsung Galaxy J7 Duo
Front camera8 megapixels
Front camera resolution3264x2448 pixels
Video recording (secondary)Full HD (1920x1080 pixels)
Front flashLED
Focal aperturef/1.9 (aperture)
Focal lengthfeature not registered
Sensor sizefeature not registered
Pixel sizefeature not registered
MultimediaSamsung Galaxy J7 Duo
RadioFM
TVNot supported
Video formatsMP4, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLAC
Connectivity and interfacesSamsung Galaxy J7 Duo
USBMicroUSB 2.0
TV outputNot supported
Audio output3.5mm jack
Bluetooth5.0 version A2DP/LE
WiFi802.11 a/b/g/n/ac + MIMO (2.4Ghz, 5Ghz)
DLNANot supported
NFCNot supported
GPSA-GPS, GeoTagging, GLONASS, BeiDou
Infrared portNot supported
Other functionsSamsung Galaxy J7 Duo
Active noise cancellationNot supported
Vibrating alertSupported
RingtonesPolyphonic and customized
Web browserHTML, XHTML, HTML5
Java / Flash playerNot supported
SensorsAccelerometer
Proximity
Face unlock
Fingerprint (front-mounted)
Other features- Colors: Black, Gold, Rose Gold, White
- Samsung Pay
- ANT+ support
- WiFi direct, hotspot
Power supply and autonomySamsung Galaxy J7 Duo
BatteryLi-Ion (Removable)
Battery capacity3000 mAh
Battery model / charger (watts)feature not registered
Talk time1200 minutes | 20 hours | 0.8 day
Standbyfeature not registered
Radiation rate (SAR)Samsung Galaxy J7 Duo
SAR USA, Mexico, Colombiafeature not registered
SAR European Union, UK0.543 W/Kg (head) | 1.397 W/Kg (body)