Cubot J3 Pro vs Plum Optimax 13
Cubot J3 Pro
Plum Optimax 13
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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 850, 1900, 2100
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4G networkLTE frequency band 1(2100), 3(1800), 7(2600), 8(900), 18(800)-
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HSDPA speed-21.1 Mbps
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HSUPA speed-5.76 Mbps
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LTE speedLTE, Cat6, 301 Mbps download, 51 Mbps upload-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2018-52018-12
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Status2018-52019-1
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Design
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BuildAluminium alloy, polycarbonate-
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SIMDual SIM (Nano-SIM/Nano-SIM)Dual SIM (Mini-SIM, dual stand-by)
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Height153 mm250.8 mm
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Width72 mm158.8 mm
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Thickness8.8 mm10.2 mm
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Weight164 g510 g
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ColorsBlack, Blue, GrayBlack, Gold, White
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Display
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Display typeIPS capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size5.5 inches10.1 inches
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Resolution480 x 960 pixels800 x 1280 pixels
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Pixel density195 ppi149 ppi
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Display colors1677721616777216
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Protection2.5D curved glass screen, GFF full lamination-
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MultitouchYesYes, max 5 fingers
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Hardware
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CPUQuad-core 1.5 GHz Cortex-A53Quad-core 1.3 GHz Cortex-A7
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ChipsetMediatek MT6739Spreadtrum SC7731
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GPUPowerVR GE8100Mali-400
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Memory RAM1 GB1 GB
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Internal storage16 GB8 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD
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Memory card max128 GB32 GB
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OS
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OSAndroid OS, v8.1 OreoAndroid 8.0 Oreo Go Edition
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Main camera
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Camera typeDual-
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Main camera8 MP, f/2.05 MP
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2 MP
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Interpolated resolution13 MP-
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Primary camera resolution3264 x 2448 pixels-
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Primary camera video1080p@30fps720p@30fps
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Primary camera flashLED flashLED 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-mode-
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Selfie camera
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Selfie camera5 MP2 MP
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Selfie camera resolution2560 x 1920 pixels-
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Selfie camera video480p@30fps480p@30fps
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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Multimedia
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Radio-FM Radio
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Radio FMFM radio-
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11n, 802.11n 5GHzWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYesYes
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WLAN WiFi Dual BandYes-
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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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HTMLHTML5WAP
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity2800 mAh4700 mAh
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Battery removableRemovableNon-removable
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Talk time-3.5 h
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Talk time 2G12 h-
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Talk time 3G12 h-
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Standby time-72 h
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Standby time 2G240 h-
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Standby time 3G240 h-
