Yezz Epic T7FD vs vivo Y31
Yezz Epic T7FD
vivo Y31
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Network
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2G networkGSM 850, 900, 1800, 1900
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3G network-HSDPA 850, 900, 2100
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HSPA speed-HSPA
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2013-122015-9
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Status2014-12015-10
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Design
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SIMNoDual SIM
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Height192 mm137.2 mm
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Width112 mm68.8 mm
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Thickness10.2 mm8.4 mm
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Weight274 g137 g
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ColorsBlack, Blue, Dark Gray, Green, OrangeBlack, White
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Display
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Display typeTFT capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size7.0 inches4.7 inches
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Resolution480 x 800 pixels720 x 1280 pixels
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Pixel density133 ppi312 ppi
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Display colors1677721616777216
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Hardware
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CPUDual-core 1.5 GHz ARM Cortex-A9Quad-core 1.3 GHz
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ChipsetVia WM8880Mediatek MT6580
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GPUMali-400MP2-
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Memory ROM4 GB-
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Memory RAM1 GB1 GB
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Internal storage-8 GB
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Memory cardmicroSDmicroSD
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Memory card max32 GB128 GB
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OS
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OSAndroid OS, v4.2 (Jelly Bean)Android OS, v5.1 (Lollipop)
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Main camera
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Main camera3.15 MP8 MP
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Primary camera resolution2048 x 1536 pixels3264 x 2448 pixels
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Primary camera video1080p@30fpsvideo
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Primary camera flash-LED flash
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Camera features-Geo-tagging, HDR, touch focus
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Selfie camera
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Selfie camera1.3 MP2 MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsN/AVibration; MP3, WAV ringtones
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Multimedia
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Radio FMStereo FM 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 Dual BandYes-
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv2.0Yes
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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 EmailEmailEmail
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Messaging IMIMIM
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Messaging Push EmailPush Mail-
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Messaging Push Mail-Push Mail
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JavaYes, via Java MIDP emulatorNo
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Sensors-Accelerometer, compass, proximity
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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 capacity2500 mAh2100 mAh
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Battery removableNon-removable-
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Talk time--
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Standby time300 h-
