Celkon A40 vs Nokia Lumia 900
Celkon A40
Nokia Lumia 900
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G network-HSDPA 850, 900, 1900, 2100
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HSDPA speed-HSDPA, 42 Mbps
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HSUPA speed-HSUPA, 5.76 Mbps
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-12012-2
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Status2014-12012-5
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Design
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SIMDual SIMMicro-SIM
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Height126.2 mm127.8 mm
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Width64 mm68.5 mm
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Thickness10.8 mm11.5 mm
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Weight126.5 g160 g
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ColorsBlue, White, YellowBlack, cyan, magenta, white
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Display
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Display typeTFT 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 GHz1.4 GHz Scorpion
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Chipset-Qualcomm APQ8055 Snapdragon
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GPU-Adreno 205
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Internal storage4 GB16 GB
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Memory RAM512 MB512 MB
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Memory cardmicroSD
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Memory card max32 GB-
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OS
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OSAndroid OS, v4.2.2 (Jelly Bean)Microsoft Windows Phone 7.5 Mango
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Main camera
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Camera type-Photo / Video
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Main camera5 MP8 MP
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Primary camera resolution2592 x 1944 pixels3264 x 2448 pixels
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Primary camera videovideo720p@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 flash-LED flash
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Selfie camera
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Secondary cameraNo-
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Selfie camera1 MP
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Selfie camera video-15fps
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration, Polyphonic, MP3 ringtonesVibration; MP3, WAV ringtones
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Multimedia
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Radio FMFM radioStereo FM radio with RDS
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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 HotspotYes-
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USBmicroUSB 2.0microUSB 2.0
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BluetoothYesv2.1
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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 IMIMIM
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Messaging Push Email-Push Email
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JavaNoNo
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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 mAh1830 mAh
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Battery removable-Non-removable
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Talk time--
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Talk time 2G-7 h
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Talk time 3G-7 h
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Standby time--
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Standby time 2G-300 h
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Standby time 3G-300 h