Celkon CT 2 vs NIU C21A
Celkon CT 2
NIU C21A
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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GPRSYes
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EDGE
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Availability
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Oficially announced2012-92013-3
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Status20122013-4
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Design
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SIMMini-SIMDual SIM (Mini-SIM)
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Height194 mm106 mm
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Width120 mm45 mm
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Thickness11.6 mm14.5 mm
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Weight73 g
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ColorsBlackBlack, Blue, Fuchsia, Green, Purple, Red, White
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Display
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Display typeTFT capacitive touchscreenTFT
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Physical size7.0 inches1.8 inches
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Resolution480 x 800 pixels128 x 160 pixels
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Pixel density133 ppi114 ppi
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Display colors-262144
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Hardware
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CPU1 GHz ARM Cortex-A8
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Internal storage-64 Mbit
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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, v4.0 (Ice Cream Sandwich)-
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Main camera
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Primary cameraYes-
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Primary camera resolution-640 x 480 pixels
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Primary camera videovideono
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Camera features-No
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Selfie camera
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Secondary cameraNoNo
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Sound
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3.5mm jackYesNo
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LoudspeakerYes, with stereo speakersYes
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NotificationsN/AVibration, Polyphonic
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Multimedia
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RadioNo-
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Radio FM-Stereo FM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g
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USBYesYes
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BluetoothYesv2.0
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GPSYesNo
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Features
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Messaging SMSSMS(threaded view)SMS
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Messaging MMSMMS-
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Messaging EmailEmail-
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Messaging IMIMIM
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WAP-Yes
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JavaYes, via Java MIDP emulatorNo
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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 capacity3000 mAh600 mAh
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Battery removableNon-removable-
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Talk time3 h4 h
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Standby time100 h200 h
