Most-detailed Samsung Galaxy J7 Duo Specs

Main Camera
Selfie Cam
Avg. rating:
(76%) (14 reviews over 2 sources)
Key Specs
Release dateApr 12, 2018

Camera Details
Camera Resolution13-megapixel (combined with a 5-megapixel sub-cam)
Camera flashLED
Camera Features
  • Live Focus
  • Blur Shape
  • Autofocus
Camera ApertureF/1.9
Max Video Resolution1920 x 1080 px
Video frames per second30
Selfie Cam Resolution8-megapixel
Selfie flashLED
Display size5.5 inches
Display dots per inch267.22 DPI
Display TypeSuper AMOLED
Color Mode16777216 colors
Display Resolution1280 x 720 px
Display's superficy12.93 square inches
Display's superficy (metric)328.42 square mm
Display finishGorilla Glass
Display total pixels921600
Operating SystemAndroid 8.0 Oreo
ProcessorExynos 7 Series
CPU Cores8
Processor Speed1.6GHz
Physical Features
Weight (grams)174g
Thickness (metric)8.2 mm
Width (metric)77.2 mm
Height (metric)153.5 mm
Grams per cubic cm0.18 g/cu cm
Headset Jack3.5mm (stereo)
Available colors
  • Black
  • Gold
Base technologyGSM (850/900/1800/1900MHz)
3G NetworksUMTS (B1/2/5/8)
4G NetworksFDD-LTE (B1/3/5/7/8/20), TDD-LTE (B38/40/41)
SIM card typeMicro SIM (Dual)
Wi-Fi802.11 a/b/g/n/ac (2.4GHz + 5GHz, VHT80)
Wi-Fi Direct
Bluetooth Technology5.0 (LE with ANT+)
USB classUSB 2.0
Storage Memory
Memory ExpansionMicroSD
Expansion LimitUp to 256GB
Battery Life
Talk Time1200 minutes (20 hours)
Battery typeLithium-Ion (removable)
Battery Power3000mAh
mAh per gram17 mAh/g
mAh per mm thick366 mAh/mm of thickness
mAh per display square in.232mAh/sqrin.
Talk minutes per Ah400min./Ah
Music Playback Time3960 minutes (66 hours)
Browsing Time780 minutes (13 hours) (on 4G, 660 on 3G)
Wi-Fi browsing time780 minutes (13 hours)
Video Playback Time1020 minutes (17 hours)
General Specs
Phone lockFace Unlock
Special features
    Gear Circle Manager Support (::0::)
Manufacture product IDSM-J720
Other features
SensorsRGB light, Proximity, Accelerometer
PC data synchronizationSmart Switch (PC version), Gear IconX PC Manager
Video FormatsMP4, M4V, 3GP, 3G2, WMV, ASF, AVI, FLV, MKV, WEBM
Included softwareSamsung Pay Mini
Multitasking (App Pair feature)
Location servicesGPS, Glonass, Beidou
Fingerprint detector


The Samsung SM-J720 (Galaxy J7 Duo) curiously opts for a 1280 x 720 HD screen, despite a lot of comparable 5.5-inchers touting Full HD (1920 x 1080) displays, and it features a dual rear camera made up of a 13-megapixel main cam and a 5-megapixel sub-cam, consequently enabling things like post-shot focus level adjustment. Besides, it also pairs its middling 1.6GHz eight-core processor with a sizable (in this Android class) 4GB RAM.

Also known as: Samsung J7 Duo, Samsung SM-J720.

General Samsung Galaxy J7 Duo Information

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