Celkon A20 vs Nokia C7 Astound
Celkon A20
Nokia C7 Astound
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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, 1700, 2100
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HSDPA speed-HSDPA, 10.2 Mbps
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HSUPA speed-HSUPA, 2 Mbps
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Speed YesYes, 384 kbps-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2013-82011
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Status2013-8
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Design
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SIMDual SIM (Mini-SIM)Mini-SIM
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Height117.3 mm
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Width56.8 mm
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Thickness10.5 mm
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Weight130 g
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ColorsBlackFrosty metal
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Display
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Display typeTFT capacitive touchscreenAMOLED capacitive touchscreen
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Physical size4.0 inches3.5 inches
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Resolution480 x 800 pixels360 x 640 pixels
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Pixel density233 ppi210 ppi
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Display colors-16777216
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Hardware
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CPUDual-core 1.2 GHz680 MHz ARM 11
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GPU-Broadcom BCM2727
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Memory ROM256 MB-
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Memory RAM512 MB256 MB
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Internal storage-8 GB
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 GB
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OS
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OSAndroid OS, v4.2.0 (Jelly Bean)Symbian 3 OS
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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 videovideo720p@25fps
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Primary camera flash-LED flash
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Primary camera fixed focus-fixed focus
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Selfie camera
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Secondary cameraVGA cameraVGA camera
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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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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11b, 802.11g, 802.11n
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USBmicroUSB 2.0microUSB 2.0
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USB On-The-Go-Yes
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BluetoothYesv3.0
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Bluetooth A2DP-Yes
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GPSNoYes, with A-GPS
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GPS Maps-Ovi Maps 3.0
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Features
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Messaging SMSSMS(threaded view)SMS
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IMIMIM
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Messaging Push EmailPush EmailPush Email
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WAP-WAP 2.0/xHTML
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JavaYes, via Java MIDP emulatorYes
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Java MIDP-MIDP 2.1
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Browser
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HTMLYesYes
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Adobe Flash-Adobe Flash Lite
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1500 mAh1200 mAh
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Talk time--
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Talk time 2G-9 h 30 min
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Talk time 3G-5 h
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Standby time--
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Standby time 2G-555 h
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Standby time 3G-656 h
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Multimedia
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Radio FM-Stereo FM radio with RDS
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Radio transmitter-FM transmitter