Celkon A20 vs Nokia Asha 503 Dual SIM
Celkon A20
Nokia Asha 503 Dual SIM
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G networkHSDPA 2100HSDPA 900, 2100
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HSDPA speed-HSDPA, 7.2 Mbps
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HSUPA speed-HSUPA, 5.76 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 announced2013-82013-10
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Status2013-82013-11
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Design
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SIMDual SIM (Mini-SIM)Dual SIM (Micro-SIM, dual stand-by)
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Height102.6 mm
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Width60.6 mm
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Thickness12.7 mm
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Weight111.4 g
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ColorsBlackYellow, black, blue, green, red, white
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Display
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Display typeTFT capacitive touchscreenTFT capacitive touchscreen
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Physical size4.0 inches3.0 inches
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Resolution480 x 800 pixels240 x 320 pixels
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Pixel density233 ppi133 ppi
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Display colors-262144
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Hardware
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CPUDual-core 1.2 GHz
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Memory ROM256 MB-
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Memory RAM512 MB-
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 GB
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Memory card included-4 GB
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OS
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OSAndroid OS, v4.2.0 (Jelly Bean)Nokia Asha software platform 1.2
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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 videovideo480p@19fps
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Primary camera flash-LED flash
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Selfie camera
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Secondary cameraVGA cameraNo
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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 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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BluetoothYesv3.0
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Bluetooth A2DP-Yes
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GPSNoNo
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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 EmailPush Email-
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WAP-WAP 2.0/xHTML
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JavaYes, via Java MIDP emulatorYes
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Browser
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HTMLYes-
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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-12 h
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Talk time 3G-4 h 30 min
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Standby time--
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Standby time 2G-480 h
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Standby time 3G-480 h
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Multimedia
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Radio FM-Stereo FM radio
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