Digma Optima 8027 3G vs Samsung Galaxy J4 Core
Digma Optima 8027 3G
Samsung Galaxy J4 Core
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G networkHSDPA 2100HSDPA 850, 900, 1700(AWS), 1900, 2100
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4G network-LTE frequency band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 18(800)
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HSDPA speed-42.2 Mbps
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HSUPA speed-5.76 Mbps
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LTE speed-LTE, 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 announced2019-42018-11
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Status2019-42018-11
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Design
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BuildPlasticPlastic
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SIMDual SIM (Micro-SIM/Mini-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height123 mm160.6 mm
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Width208 mm76.1 mm
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Thickness10 mm7.9 mm
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Weight320 g177 g
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ColorsBlackBlack, Blue, Gold
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Display
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Display typeIPSIPS LCD capacitive touchscreen
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Physical size8 inches6 inches
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Resolution1280 x 800 pixels720 x 1480 pixels
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Pixel density189 ppi274 ppi
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Display colors1677721616777216
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Protection-2.5D curved glass screen
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MultitouchYesYes
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Hardware
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CPUQuad-core 1.3 GHz Cortex-A7Quad-core 1.4 GHz Cortex-A53
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ChipsetSpreadtrum SC7731EQualcomm MSM8917 Snapdragon 425
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GPUMali-T820 MP1Adreno 308
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Memory RAM1 GB1 GB
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Internal storage16 GB16 GB
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Memory cardmicroSD, microSDHC, microSDXC-
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Memory card max128 GB-
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OS
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OSAndroid 8.1 Oreo Go EditionAndroid 8.1 Oreo Go Edition
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Main camera
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Main camera2 MP8 MP, f/2.2
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Primary camera resolution1600 x 1200 pixels3264 x 2448 pixels
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Primary camera video720p@30fps1080p@30fps
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Primary camera flash-LED flash
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Camera featuresContinuous shooting, digital zoom, geotagging, HDR, white balance settings, scene modeAutofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode
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Selfie camera
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Selfie camera0.31 MP5 MP, f/2.2
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Selfie camera resolution640 x 480 pixels2560 x 1920 pixels
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Selfie camera video480p@30fps MP720p@30fps
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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EarpieceYesYes
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Multimedia
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RadioFM Radio-
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Radio FM-Stereo FM radio, recording
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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WLAN WiFi Direct-Yes
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USBmicroUSB 2.0microUSB 2.0
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USB On-The-Go-Yes
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Bluetoothv4.2v4.2
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASS-Yes
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Beidou-Yes
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Features
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SensorsAccelerometerAccelerometer, light, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity3500 mAh3300 mAh
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Battery removableNon-removableNon-removable
