Alcatel OT-991 vs Celkon Campus Colt A401
Alcatel OT-991
Celkon Campus Colt A401
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800
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3G networkHSDPA 850, 1900, 2100HSDPA 2100
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HSDPA speedHSDPA, 7.2 Mbps-
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Speed Yes-Yes
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2012-22014-10
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Status20122014-10
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Design
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SIMMini-SIMDual SIM
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Height122 mm124.9 mm
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Width68 mm64 mm
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Thickness10.8 mm10.4 mm
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Weight131.3 g
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ColorsBlack, WhiteBlack, Blue, White
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Display
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Display typeTFT capacitive touchscreenCapacitive touchscreen
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Physical size4.0 inches4.0 inches
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Resolution320 x 480 pixels480 x 800 pixels
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Pixel density144 ppi233 ppi
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Display colors262144-
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Hardware
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CPU800 MHz ARM Cortex-A91 GHz
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ChipsetMediatek MT6573Spreadtrum SC7715
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GPUPowerVR SGX531Mali-400
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Internal storage150 MB4 GB
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Memory RAM-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, v2.3 (Gingerbread)Android OS, v4.4.2 (KitKat)
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Main camera
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Main camera3.15 MP3.15 MP
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Primary camera resolution2048 x 1536 pixels2048 x 1536 pixels
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Primary camera videovideovideo
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Primary camera flashLED flashLED flash
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Selfie camera
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Secondary cameraYesYes
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration; MP3 ringtonesVibration; MP3, WAV ringtones
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Multimedia
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Radio FMStereo FM radio with RDSFM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi
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WLAN WiFi HotspotYes-
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv4.0v4.0
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Bluetooth A2DPYes-
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GPSYes, with A-GPSYes
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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 IMIM-
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WAPWAP 2.0/xHTML-
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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Sensors-Accelerometer, proximity
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Browser
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HTMLYesYes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1500 mAh1400 mAh
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Talk time--
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Talk time 2G12 h-
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Talk time 3G10 h-
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Standby time400 h-
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