Digma Optima Prime 4 3G vs Samsung Galaxy Tab A 8 (2019)
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Digma Optima Prime 4 3G
Samsung Galaxy Tab A 8 (2019)
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G networkHSDPA 1900HSDPA 850, 900, 1700(AWS), 1900, 2100
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4G network-LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 20(800), 28(700), 38(2600), 40(2300), 41(2500), 66(1700/2100)
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GPRSYesYes
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EDGEYesYes
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Availability
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Status2018-42019-4
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Oficially announced2018-42019-3
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Design
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BuildPlastic-
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SIMDual SIM (Micro-SIM/Mini-SIM, dual stand-by)Nano-SIM
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Height107.8 mm122.4 mm
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Width188 mm201.5 mm
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Thickness10 mm8.9 mm
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Weight270 g325 g
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Stylus-Yes
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ColorsBlackBlack, Gray
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Display
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Display typeTNIPS LCD capacitive touchscreen
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Physical size7 inches8.0 inches
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Resolution1024 x 600 pixels1200 x 1920 pixels
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Pixel density170 ppi283 ppi
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Display colors1677721616777216
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MultitouchYesYes
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Hardware
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CPU-Octa-core
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CPUQuad-core 1.2 GHz Cortex-A7Dual-core 1.8 GHz Cortex-A73
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CPU(second)Hexa-core 1.6 GHz Cortex-A53
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ChipsetSpreadtrum SC7731CExynos 7904
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GPUMali-400 MP1Mali-G71 MP2
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Memory RAM1 GB2 GB
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Internal storage8 GB32 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max64 GB512 GB
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OS
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OSAndroid 7.0 NougatOne UI (Android 9.0 Pie)
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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 pixels2592 x 1944 pixels
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Selfie camera video480p@30fps MP1080p@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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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac
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WLAN WiFi Hotspot-Yes
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WLAN WiFi Direct-Yes
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WLAN WiFi Dual Band-Yes
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USBmicroUSB 2.0Type-C 1.0 reversible connector
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Bluetoothv4.0v5.0
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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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GALILEO-Yes
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Beidou-Yes
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Features
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SensorsAccelerometerAccelerometer, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-PoLi-Po
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Battery capacity2200 mAh4200 mAh
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Battery removableNon-removableNon-removable
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Talk time 2G-25 h
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Talk time 3G-25 h
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Main camera
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Main camera8 MP, f/2.0
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Primary camera resolution-3264 x 2448 pixels
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Primary camera video-1080p@30fps
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Primary camera flash-LED flash
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Camera features-Autofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode
