Celkon CT-910 vs Karbonn A4
Celkon CT-910
Karbonn A4
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Network
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2G networkGSM 900, 1800GSM 850, 1900
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3G networkHSDPA 2100HSDPA 900, 2100
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HSDPA speedHSDPAHSDPA
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HSUPA speedHSUPAHSUPA
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2013-32013-3
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Status2013-32013-3
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Design
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SIMMini-SIMDual SIM (Mini-SIM)
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Height124.8 mm
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Width66 mm
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Thickness9.5 mm
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Weight75 g
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ColorsGrayWhite/Black
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Display
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Display typeCapacitive touchscreenTFT capacitive touchscreen
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Physical size7.0 inches4.0 inches
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Resolution480 x 800 pixels320 x 480 pixels
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Pixel density133 ppi144 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 GB256, 512 MB
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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)Android OS, v2.3.6 (Gingerbread)
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Main camera
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Main camera2 MP3.15 MP
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Primary camera resolution1600 x 1200 pixels2048 x 1536 pixels
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Primary camera videovideovideo
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Selfie camera
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Secondary cameraVGA cameraYes
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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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Multimedia
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RadioNo-
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Radio FM-FM radio
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Connectivity
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WLANWi-FiWi-Fi
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WLAN WiFi Hotspot-Yes
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USBYesYes
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BluetoothYesYes
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GPSYes, with A-GPSNo
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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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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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Browser
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HTML-Yes
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BrowserYes-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity3500 mAh1400 mAh
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Battery removableNon-removable-
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Talk time10 h4 h 20 min
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Standby time300 h250 h
