DEXP B255 vs Oppo A12
DEXP B255
Oppo A12
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 900, 2100HSDPA 800, 900, 2100
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4G network-LTE frequency band 1, 3, 5, 8, 38, 40, 41
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HSDPA speed21 Mbps42.2 Mbps
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HSUPA speed5.76 Mbps5.76 Mbps
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LTE speed-LTE-A
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2018-112020-04
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Status2018-112020-04
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Design
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BuildMetal, plasticGlass front, plastic back, plastic frame
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SIMDual SIM (Nano-SIM/Nano-SIM(microSD), dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height147.8 mm155.9 mm
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Width71.5 mm75.5 mm
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Thickness8.8 mm8.3 mm
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Weight151 g165 g
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ColorsGreyBlack, Blue
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Display
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Display typeIPSIPS LCD capacitive touchscreen
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Physical size5.5 inches6.22 inches
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Resolution640 x 1280 pixels720 x 1520 pixels
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Pixel density260 ppi270 ppi
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Display colors1677721616777216
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Protection-2.5D curved glass screen, Corning Gorilla Glass 3
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MultitouchYes-
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Display features-450 nits typ. brightness
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Hardware
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CPU-Octa-core
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CPUQuad-core 1.3 GHz Cortex-A7Quad-core 2.35 GHz Cortex-A53
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CPU(second)quad-core 1.8 GHz Cortex-A53
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ChipsetMediatek MT6580AMediatek MT6765 Helio P35
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GPUMali-400 MP2PowerVR GE8320
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Memory RAM1 GB3, 4 GB
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Internal storage8 GB32, 64 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max32 GB256 GB
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Storage-eMMC 5.1
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OS
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OSAndroid 7.0 NougatColorOS 6.1 (Android 9.0 Pie)
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Main camera
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Camera typeDualDual
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Main camera8 MP13 MP, f/2.2 , 1/3.1" , 1.12 µm
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0.3 MP2 MP, f/2.4
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Primary camera resolution3264 x 2448 pixels4160 x 3120 pixels
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Primary camera video1080p@30fps1080p@30fps
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Primary camera flashLEDLED flash
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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 modeAutofocus, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus, night mode
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Selfie camera
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Selfie camera2 MP5 MP, f/2.0 , 1/5" , 1.12 µm
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Selfie camera resolution1600 x 1200 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 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, 802.11n 5Ghz, 802.11ac
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WLAN WiFi HotspotYesYes
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WLAN WiFi Direct-Yes
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WLAN WiFi Dual Band-Yes
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USBmicroUSB 2.0microUSB 2.0
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USB On-The-Go-Yes
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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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Beidou-Yes
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Features
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SensorsAccelerometerAccelerometer, compass, fingerprint, gyroscope, 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 capacity3000 mAh4230 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Yes
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Cost
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Price-130 USD
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