Celkon Campus Buddy A404 vs Nokia Lumia 820
Celkon Campus Buddy A404
Nokia Lumia 820
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G networkHSDPA 2100HSDPA 850, 900, 1900, 2100
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4G network-LTE 800, 900, 1800, 2100, 2600
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HSDPA speed-HSDPA, 42 Mbps
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HSUPA speed-HSUPA, 5.76 Mbps
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Speed YesYes-
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LTE speed-LTE, Cat3, 100 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 announced2014-72012-9
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Status2014-72012-11
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Design
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SIMDual SIMMicro-SIM
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Height126.5 mm123.8 mm
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Width64.2 mm68.5 mm
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Thickness9.8 mm9.9 mm
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Weight131 g160 g
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ColorsBlack, WhiteBlack, Blue, Gray, Red, Violet, White, Yellow
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Display
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Display typeCapacitive touchscreenAMOLED capacitive touchscreen
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Physical size4.0 inches4.3 inches
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Resolution480 x 800 pixels480 x 800 pixels
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Pixel density233 ppi217 ppi
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Display colors-16777216
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Hardware
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CPUDual-core 1.3 GHzDual-core 1.5 GHz Krait
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Chipset-Qualcomm MSM8960 Snapdragon
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GPU-Adreno 225
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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 GB64 GB
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OS
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OSAndroid OS, v4.2.2 (Jelly Bean)Microsoft Windows Phone 8
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Main camera
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Camera type-Photo / Video
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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 optics-Carl Zeiss optics
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Primary camera Autofocus-autofocus
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Primary camera flashLED flashLED flash
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Camera featuresYes-
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Selfie camera
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Secondary camera-VGA camera
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Selfie camera1.3 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 802.11a, 802.11b, 802.11g, 802.11n
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WLAN WiFi Direct-Yes
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WLAN WiFi Dual Band-Yes
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USBmicroUSB 2.0microUSB 2.0
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BluetoothYesv3.1
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Bluetooth A2DP-Yes
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Bluetooth EDR-Yes
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GPSYesYes, with A-GPS
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GLONASS-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 IM-IM
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Messaging Push Email-Push Email
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JavaNoNo
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SensorsAccelerometer-
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Browser
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HTMLYesHTML5
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1500 mAh1650 mAh
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Talk time--
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Talk time 2G-14 h
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Talk time 3G-8 h
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Standby time--
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Standby time 2G-330 h
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Standby time 3G-330 h