Digma Optima Prime 4 3G vs Sharp Aquos R2 compact
Digma Optima Prime 4 3G
Sharp Aquos R2 compact
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G networkHSDPA 1900HSDPA 2100
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4G network-LTE
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LTE speed-LTE, Cat18, 1.2 Gbps download, 221 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2018-42018-11
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Status2018-42019-01
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Design
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BuildPlasticFront glass, aluminum frame, plastic back
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SIMDual SIM (Micro-SIM/Mini-SIM, dual stand-by)Nano-SIM
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Height107.8 mm131 mm
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Width188 mm64 mm
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Thickness10 mm9.3 mm
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Weight270 g135 g
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Waterproof-IP68, 1.5m and 30 minutes
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Dust proof-IP68
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ColorsBlackBlack, Green, White
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Display
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Display typeTNIGZO IPS capacitive touchscreen
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Physical size7 inches5.2 inches
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Resolution1024 x 600 pixels1080 x 2280 pixels
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Pixel density170 ppi485 ppi
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Display colors1677721616777216
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Protection-Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 3
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MultitouchYesYes
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Display features-120 Hz, HDR10, DCI-P3
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Hardware
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CPU-Octa-core
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CPUQuad-core 1.2 GHz Cortex-A7Quad-core 2.6 GHz Kryo 385 Gold
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CPU(second)quad-core 1.7 GHz Kryo 385 Silver
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ChipsetSpreadtrum SC7731CQualcomm SDM845 Snapdragon 845
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GPUMali-400 MP1Adreno 630
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Memory RAM1 GB4 GB
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Internal storage8 GB64 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 NougatAndroid 9.0 Pie
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Selfie camera
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Selfie camera0.31 MP8 MP, f/2.0
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Selfie camera resolution640 x 480 pixels3264 x 2448 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 RadioNo
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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, 802.11n 5Ghz, 802.11ac
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WLAN WiFi Hotspot-Yes
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WLAN WiFi Direct-Yes
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Wi-Fi display-Yes
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WLAN WiFi Dual Band-Yes
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USBmicroUSB 2.0Type-C 1.0 reversible connector (PowerDelivery 2.0)
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Bluetoothv4.0v5.0
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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NFC-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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QZSS-Yes
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Features
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SensorsAccelerometerAccelerometer, compass, gyroscope, fingerprint, 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 capacity2200 mAh2500 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Qualcomm Quick Charge 3.0
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Main camera
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Main camera22.6 MP, f/1.9 , 22 mm
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Primary camera resolution-5488 x 4112 pixels
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Primary camera video-2160p@30fps, 1080p@30fps
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Primary camera flash-LED flash
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Primary camera phase detection autofocus-phase detection autofocus
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Camera features-Autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode
