Celkon A20 vs Unnecto Shell
Celkon A20
Unnecto Shell
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G networkHSDPA 2100-
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Speed YesYes, 384 kbps-
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GPRSYesYes
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EDGEYes
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Availability
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Status2013-82011-8
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Oficially announced2013-82011-6
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Design
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SIMDual SIM (Mini-SIM)Dual SIM (dual stand-by)
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Height111.5 mm
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Width60 mm
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Thickness14.3 mm
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Weight240 g
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Keyboard-QWERTY
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ColorsBlackBlack, Silver
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Display
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Display typeTFT capacitive touchscreenTFT
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Physical size4.0 inches2.2 inches
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Resolution480 x 800 pixels320 x 240 pixels
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Pixel density233 ppi182 ppi
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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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Internal storage-128 MB
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 GB
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Memory card included-2 GB
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OS
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OSAndroid OS, v4.2.0 (Jelly Bean)-
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Main camera
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Main camera3.15 MP1.3 MP
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Primary camera resolution2048 x 1536 pixels1280 x 1024 pixels
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Primary camera videovideovideo
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Selfie camera
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Secondary cameraVGA cameraNo
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Sound
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3.5mm jackYesNo
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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, 802.11n
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USBmicroUSB 2.0Yes
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BluetoothYesv2.1
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Bluetooth EDR-Yes
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GPSNoNo
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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 2.0
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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 mAh1000 mAh
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Talk time-4 h
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Standby time-150 h
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Multimedia
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Radio FM-FM radio
