Celkon Campus Buddy A404 vs Oppo A31 (2015)
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Celkon Campus Buddy A404
Oppo A31 (2015)
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G networkHSDPA 2100TD-SCDMA 1880, 2010
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Speed YesYes-
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LTE speed-LTE, Cat4, 150 Mbps download, 50 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-72015-4
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Status2014-72015
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Design
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SIMDual SIMDual SIM (Nano-SIM/ Micro-SIM, dual stand-by)
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Height126.5 mm131.9 mm
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Width64.2 mm65.5 mm
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Thickness9.8 mm8 mm
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Weight131 g135 g
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ColorsBlack, WhiteBlue, White
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Display
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Display typeCapacitive touchscreenIPS LCD capacitive touchscreen
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Physical size4.0 inches4.5 inches
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Resolution480 x 800 pixels480 x 854 pixels
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Pixel density233 ppi218 ppi
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Display colors-16777216
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Hardware
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CPUDual-core 1.3 GHzQuad-core ARM Cortex-A53
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Chipset-Qualcomm MSM8916 Snapdragon 410
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GPU-Adreno 306
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Memory RAM512 MB1 GB
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Internal storage4 GB8 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, v4.2.2 (Jelly Bean)Android OS, v4.4 (KitKat)
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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 video720p1080p@30fps
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Primary camera Autofocus-autofocus
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Primary camera flashLED flashLED flash
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Camera featuresYesGeo-tagging
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Selfie camera
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Selfie camera1.3 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 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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BluetoothYesv4.0
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GPSYesYes, with A-GPS
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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 Push Email-Push Email
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JavaNoNo
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SensorsAccelerometerAccelerometer, proximity
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Browser
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HTMLYesYes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1500 mAh2000 mAh
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Talk time-7 h
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Standby time-240 h
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