Celkon CT-910 vs NIU C21A
Celkon CT-910
NIU C21A
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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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HSDPA speedHSDPA-
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HSUPA speedHSUPA-
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2013-32013-3
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Status2013-32013-4
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Design
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SIMMini-SIMDual SIM (Mini-SIM)
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Height106 mm
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Width45 mm
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Thickness14.5 mm
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Weight73 g
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ColorsGrayBlack, Blue, Fuchsia, Green, Purple, Red, White
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Display
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Display typeCapacitive 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
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ChipsetQualcomm MSM7227A Snapdragon-
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Memory RAM512 MB-
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Internal storage4 GB64 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, v4.0.4 (Ice Cream Sandwich)-
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Main camera
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Main camera2 MP
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Primary camera resolution1600 x 1200 pixels640 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 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, 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
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USBYesYes
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BluetoothYesv2.0
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GPSYes, with A-GPSNo
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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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BrowserYes-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity3500 mAh600 mAh
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Battery removableNon-removable-
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Talk time10 h4 h
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Standby time300 h200 h
