Allview V4 Viper vs Digma Optima Prime 4 3G
Allview V4 Viper
Digma Optima Prime 4 3G
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800
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3G networkW-CDMA 900, 2100HSDPA 1900
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4G networkLTE frequency band 1(2100), 3(1800), 7(2600), 8(900), 20(800), 38(2600)-
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HSDPA speed42.2 Mbps-
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HSUPA speed11.5 Mbps-
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LTE speedLTE Cat 4, 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 announced2019-92018-4
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Status2019-92018-4
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Design
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Build-Plastic
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SIMDual SIM (Nano-SIM, dual SIM stand-by)Dual SIM (Micro-SIM/Mini-SIM, dual stand-by)
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Height145.8 mm107.8 mm
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Width70.9 mm188 mm
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Thickness8.5 mm10 mm
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Weight138 g270 g
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ColorsBlue, RedBlack
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Display
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Display typeIPS capacitive touchscreenTN
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Physical size5.7 inches7 inches
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Resolution720 x 1520 pixels1024 x 600 pixels
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Pixel density295 ppi170 ppi
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Display colors1677721616777216
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MultitouchYesYes
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Hardware
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CPUQuad-core 2.0 GHz Cortex-A53Quad-core 1.2 GHz Cortex-A7
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ChipsetMediatek MT6761 Helio A22Spreadtrum SC7731C
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GPUPowerVR GE8320Mali-400 MP1
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Memory RAM2 GB1 GB
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Internal storage16 GB8 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max128 GB64 GB
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OS
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OSAndroid 9.0 PieAndroid 7.0 Nougat
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Main camera
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Camera typeDual-
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Main camera8 MP
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0.3 MP
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Primary camera video1080p@30fps-
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Primary camera flashLED flash-
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Selfie camera
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Selfie camera5 MP0.31 MP
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Selfie camera resolution-640 x 480 pixels
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Selfie camera video-480p@30fps MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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Earpiece-Yes
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Multimedia
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RadioFM RadioFM Radio
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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 HotspotYes-
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv4.1v4.0
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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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Features
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SensorsAccelerometer, fingerprint, proximityAccelerometer
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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 capacity2700 mAh2200 mAh
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Battery removableNon-removableNon-removable
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Cost
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Price110 USD-