Samsung Galaxy J7 Duo vs Samsung Galaxy A8 (2018)
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Samsung Galaxy J7 Duo
Samsung Galaxy A8 (2018)
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 900, 1900, 2100HSDPA 850, 900, 1700(AWS), 1900, 2100
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4G networkLTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500)LTE frequency band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 18(800); LTE-TDD 2300, 2500, 2600 MHz
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HSDPA speed-42.2 Mbps
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HSUPA speed-5.76 Mbps
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LTE speedLTE, Cat4, 150 Mbps download, 50 Mbps upload-
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LTE-A speed-LTE-A, (3CA) Cat11, 600 Mbps download, 75 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2018-42017-12
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Status2018-42018-1
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Design
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BuildMetalFront/back glass, aluminum frame
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SIMSingle SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by)Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
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Height153.5 mm149.2 mm
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Width77.2 mm70.6 mm
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Thickness8.2 mm8.4 mm
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Weight174 g172 g
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Payment-Samsung Pay
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Waterproof-IP68 certified, 1.5 m and 30 minutes
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Dust proof-IP68
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ColorsBlack, Gold, Rose Gold, WhiteBlack, blue, gold, orchid grey
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Display
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Display typeSuper AMOLED capacitive touchscreenSuper AMOLED capacitive touchscreen
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Physical size5.5 inches5.6 inches
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Resolution720 x 1280 pixels1080 x 2220 pixels
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Pixel density267 ppi441 ppi
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Display colors1677721616777216
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Protection2.5D curved glass screenCorning Gorilla Glass
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MultitouchYesYes
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Always on display-Yes
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Hardware
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CPUOcta-coreOcta-core
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CPUDual-core 2.2 GHz Cortex-A73Dual-core 2.2 GHz Cortex-A73
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CPU(second)Hexa-core 1.6 GHz Cortex-A53Hexa-core 1.6 GHz Cortex-A53
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ChipsetExynos 7885 OctaExynos 7885 Octa
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GPUMali-G71Mali-G71
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Internal storage32 GB32, 64 GB
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Memory RAM4 GB4 GB
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Memory cardmicroSDmicroSD
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Memory card max256 GB256 GB
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OS
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OSAndroid 8.0 (Oreo)Android 7.1.1 (Nougat)
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Main camera
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Camera typeDual-
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Camera type-Photo / Video
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Main camera13 MP, f/1.916 MP, f/1.7
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5 MP, f/1.9
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Primary camera resolution4160 x 3120 pixels4608 x 3456 pixels
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Primary camera video1080p@30fps1080p@30fps
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Primary camera Autofocusautofocusphase detection autofocus
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Primary camera flashLED flashLED flash
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Camera featuresGeo-tagging, HDR, face detection, panorama, touch focusGeo-tagging, HDR, face detection, panorama, touch focus
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Selfie camera
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FlashLED flash-
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Selfie camera type-Dual
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Selfie camera8 MP, f/1.916 MP, f/1.9
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8 MP
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Selfie camera resolution3264 x 2448 pixels4608 x 3456 pixels
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Selfie camera video720p@30fps1080p
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration; MP3, WAV ringtonesVibration; MP3, WAV ringtones
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EarpieceYes-
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Multimedia
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Radio FMFM radioFM radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11acWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYesYes
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WLAN WiFi Dual BandYesYes
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USBYesType-C 1.0 reversible connector
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Bluetoothv4.2v5.0
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Bluetooth EDR-Yes
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NFC-Yes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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BDSYesYes
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Features
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Messaging SMSSMS(threaded view)SMS(threaded view)
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IMIMIM
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Messaging Push EmailPush Email-
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Messaging Push Mail-Push Mail
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SensorsFingerprint (front-mounted), accelerometer, proximityFingerprint (rear-mounted), accelerometer, barometer, compass, gyro, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity3000 mAh3000 mAh
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Battery removableRemovableNon-removable
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Fast battery charging-Yes
