Celkon A518 vs Nokia Lumia 638
Celkon A518
Nokia Lumia 638
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G networkHSDPAHSDPA 850, 900, 1900, 2100
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HSDPA speed-42.2 Mbps
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HSUPA speed-5.76 Mbps
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HSPA speedHSPA-
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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 announced2015-42014-12
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Status2015-42014-12
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Design
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SIMDual SIMMicro-SIM
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Height145 mm129.5 mm
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Width73 mm66.7 mm
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Thickness9.8 mm9.2 mm
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Weight164 g136 g
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ColorsBlue, WhiteBlack
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Display
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Display typeCapacitive touchscreenIPS LCD capacitive touchscreen
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Physical size5.0 inches4.5 inches
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Resolution480 x 854 pixels480 x 854 pixels
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Pixel density196 ppi218 ppi
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Display colors-16777216
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Hardware
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CPU1 GHz1.2 GHz Quad-core ARM Cortex-A7
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ChipsetSpreadtrum 7715Qualcomm Snapdragon 400
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GPUMali-400Adreno 305
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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, v4.4.2 (KitKat)Microsoft Windows Phone 8.1
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Main camera
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Main camera3.15 MP5 MP
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Primary camera resolution2048 x 1536 pixels2592 x 1944 pixels
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Primary camera videovideovideo
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Primary camera Autofocus-autofocus
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Primary camera flashLED flash-
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Camera featuresYes1/4'' sensor size, geo-tagging, panorama
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Selfie camera
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Secondary camera-No
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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-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi Hotspot-Yes
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WLAN DLNA-Yes
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USBYesmicroUSB 2.0
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BluetoothYesv4.0
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Bluetooth A2DP-Yes
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bluetooth LE-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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SensorsAccelerometerAccelerometer
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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 capacity2000 mAh1830 mAh
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Talk time--
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Standby time--