DEXP BS155 vs Digma Optima Prime 4 3G
DEXP BS155
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 networkHSDPA 900, 2100HSDPA 1900
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HSDPA speed21 Mbps-
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HSUPA speed5.76 Mbps-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2019-12018-4
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Status2019-12018-4
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Design
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BuildPlastic, metalPlastic
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SIMDual SIM (Nano-SIM/Nano-SIM(microSD), dual stand-by)Dual SIM (Micro-SIM/Mini-SIM, dual stand-by)
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Height147.4 mm107.8 mm
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Width70 mm188 mm
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Thickness9 mm10 mm
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Weight146 g270 g
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ColorsBlue, SilverBlack
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Display
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Display typeIPSTN
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Physical size5.45 inches7 inches
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Resolution480 x 960 pixels1024 x 600 pixels
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Pixel density197 ppi170 ppi
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Display colors1677721616777216
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MultitouchYesYes
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Hardware
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CPUQuad-core 1.3 GHz Cortex-A7Quad-core 1.2 GHz Cortex-A7
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ChipsetMediatek MT6580MSpreadtrum SC7731C
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GPUMali-400 MP2Mali-400 MP1
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Memory RAM1 GB1 GB
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Internal storage8 GB8 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max64 GB64 GB
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OS
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OSAndroidAndroid 7.0 Nougat
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Main camera
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Camera typeDual-
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Main camera5 MP
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2 MP
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Interpolated resolution8 MP-
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Primary camera resolution2592 x 1944 pixels-
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Primary camera video1080p@30fps-
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Primary camera flashLED-
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Camera featuresAutofocus, 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 camera2 MP0.31 MP
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Selfie camera interpolated resolution5 MP-
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Selfie camera resolution1600 x 1200 pixels640 x 480 pixels
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Selfie camera video480p@30fps MP480p@30fps MP
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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 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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Bluetoothv4.0v4.0
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Bluetooth A2DPYesYes
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GPSYes, with A-GPSYes, with A-GPS
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Features
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SensorsAccelerometer, fingerprint, light, 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 capacity2200 mAh2200 mAh
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Battery removableNon-removableNon-removable