Samsung Galaxy J7 Duo vs Digma Optima 1023N 3G
Samsung Galaxy J7 Duo
Digma Optima 1023N 3G
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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 900, 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)-
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LTE speedLTE, Cat4, 150 Mbps download, 50 Mbps upload-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2018-42018-4
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Status2018-42018-4
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Design
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BuildMetalPlastic
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SIMSingle SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by)Dual SIM (Micro-SIM/Mini-SIM, dual stand-by)
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Height153.5 mm172 mm
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Width77.2 mm244 mm
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Thickness8.2 mm9.2 mm
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Weight174 g520 g
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ColorsBlack, Gold, Rose Gold, WhiteBlack, White
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Display
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Display typeSuper AMOLED capacitive touchscreenIPS
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Physical size5.5 inches10.1 inches
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Resolution720 x 1280 pixels1280 x 800 pixels
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Pixel density267 ppi149 ppi
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Display colors1677721616777216
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Protection2.5D curved glass screen-
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MultitouchYesYes
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Hardware
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CPUOcta-core-
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CPUDual-core 2.2 GHz Cortex-A73Quad-core 1.3 GHz Cortex-A7 ARM
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CPU(second)Hexa-core 1.6 GHz Cortex-A53
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ChipsetExynos 7885 OctaMediatek MT8321
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GPUMali-G71Mali-400 MP2
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Memory RAM4 GB2 GB
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Internal storage32 GB16 GB
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Memory cardmicroSDmicroSD, microSDHC, microSDXC
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Memory card max256 GB64 GB
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OS
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OSAndroid 8.0 (Oreo)Android 7.0 Nougat
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Main camera
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Camera typeDual-
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Main camera13 MP, f/1.92 MP
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5 MP, f/1.9
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Primary camera resolution4160 x 3120 pixels1600 x 1200 pixels
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Primary camera video1080p@30fps720p@30fps
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Primary camera Autofocusautofocus-
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Primary camera flashLED flashLED
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Camera featuresGeo-tagging, HDR, face detection, panorama, touch focusAutofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, scene mode
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Selfie camera
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FlashLED flash-
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Selfie camera8 MP, f/1.90.31 MP
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Selfie camera resolution3264 x 2448 pixels640 x 480 pixels
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Selfie camera video720p@30fps480p@30fps MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration; 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 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYes-
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WLAN WiFi Dual BandYes-
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USBYesmicroUSB 2.0
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Bluetoothv4.2v4.0
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Bluetooth A2DPYesYes
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bluetooth LEYes-
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYes-
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BDSYes-
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Features
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Messaging SMSSMS(threaded view)-
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Messaging MMSMMS-
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Messaging EmailEmail-
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Messaging IMIM-
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Messaging Push EmailPush Email-
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SensorsFingerprint (front-mounted), accelerometer, proximityAccelerometer
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity3000 mAh5000 mAh
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Battery removableRemovableNon-removable
