vivo Y31 vs vivo Y51
vivo Y31
vivo Y51
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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 850, 900, 2100TD-SCDMA
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HSPA speedHSPA-
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TD-SCDMA speed-TD-SCDMA
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TD-LTE speed-TD-LTE
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2015-92015-12
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Status2015-102015-12
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Design
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SIMDual SIMDual SIM
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Height137.2 mm143.8 mm
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Width68.8 mm71.7 mm
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Thickness8.4 mm7.5 mm
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Weight137 g157 g
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ColorsBlack, WhiteWhite
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Display
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Display typeIPS LCD capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size4.7 inches5.0 inches
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Resolution720 x 1280 pixels540 x 960 pixels
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Pixel density312 ppi220 ppi
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Display colors1677721616777216
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Hardware
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CPUQuad-core 1.3 GHzQuad-core 1.2 GHz
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ChipsetMediatek MT6580-
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Memory RAM1 GB2 GB
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Internal storage8 GB16 GB
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Memory cardmicroSDmicroSD
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Memory card max128 GB128 GB
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OS
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OSAndroid OS, v5.1 (Lollipop)Android OS, v5.0.2 (Lollipop)
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Main camera
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Main camera8 MP8 MP
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Primary camera resolution3264 x 2448 pixels3264 x 2448 pixels
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Primary camera videovideo1080p@30fps
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Primary camera Autofocus-autofocus
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Primary camera flashLED flashLED flash
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Camera featuresGeo-tagging, HDR, touch focusGeo-tagging, HDR, face detection, panorama, touch focus
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Selfie camera
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Selfie camera2 MP5 MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration; MP3, WAV ringtonesVibration; 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-FiWi-Fi
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USBmicroUSB 2.0microUSB 2.0
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BluetoothYesYes
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GPSYes, with A-GPSYes, with A-GPS
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BDS-Yes
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Features
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Messaging SMSSMS(threaded view)SMS(threaded view)
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IMIMIM
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Messaging Push MailPush MailPush Mail
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JavaNoNo
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SensorsAccelerometer, compass, 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-Ion
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Battery capacity2100 mAh2350 mAh
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Talk time--
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Standby time--