UMIDIGI C2 vs vivo Y31
UMIDIGI C2
vivo Y31
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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, 900, 2100
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4G networkLTE frequency band 1(2100), 3(1800), 7(2600), 18(800)-
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HSPA speed-HSPA
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LTE speedLTE, Cat4, 150 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 announced20172015-9
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Status20172015-10
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Design
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BuildAluminium alloy-
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SIMDual SIM (Nano-SIM/Nano-SIM(microSD))Dual SIM
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Height142.6 mm137.2 mm
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Width69.25 mm68.8 mm
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Thickness9.5 mm8.4 mm
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Weight148 g137 g
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ColorsBlackBlack, White
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Display
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Display typeIGZOIPS LCD capacitive touchscreen
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Physical size5 inches4.7 inches
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Resolution1080 x 1920 pixels720 x 1280 pixels
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Pixel density441 ppi312 ppi
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Display colors1677721616777216
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ProtectionScratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 4-
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MultitouchYes-
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Hardware
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CPUOcta-core-
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CPUQuad-core 1.5 GHz Cortex-A53Quad-core 1.3 GHz
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CPU(second)quad-core 1.0 GHz Cortex-A53
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ChipsetMediatek MT6750TMediatek MT6580
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GPUMali-T860 MP2-
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Memory RAM4 GB1 GB
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Internal storage64 GB8 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD
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Memory card max256 GB128 GB
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StorageeMMC-
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OS
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OSUMI OS(Android 7.0 Nougat)Android OS, v5.1 (Lollipop)
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Main camera
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Main camera13 MP, 1.127 µm8 MP
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Primary camera resolution4160 x 3120 pixels3264 x 2448 pixels
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Primary camera video1080p@30fpsvideo
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Primary camera flashLED flashLED flash
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Primary camera phase detection autofocusphase detection autofocus-
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Camera featuresAutofocus, continuous shooting, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-modeGeo-tagging, HDR, touch focus
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Selfie camera
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Selfie camera5 MP, 1.127 µm2 MP
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Selfie camera resolution2592 x 1944 pixels-
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Selfie camera video480p@30fps-
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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Notifications-Vibration; MP3, WAV ringtones
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Multimedia
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Radio FMFM radioFM radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11nWi-Fi
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WLAN WiFi HotspotYes-
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USBmicroUSB 2.0microUSB 2.0
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USB On-The-GoYes-
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Bluetoothv4.0Yes
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Bluetooth A2DPYes-
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GPSYes, with A-GPSYes, with A-GPS
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Features
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Messaging SMS-SMS(threaded view)
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Messaging MMS-MMS
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Messaging Email-Email
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Messaging IM-IM
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Messaging Push Mail-Push Mail
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Java-No
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SensorsAccelerometer, compass, fingerprint, gyroscope, hall, light, proximityAccelerometer, compass, 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 capacity4000 mAh2100 mAh
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Battery removableNon-removable-
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Talk time--
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Talk time 2G48 h-
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Talk time 3G48 h-
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Standby time--
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Standby time 2G420 h-
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Standby time 3G420 h-