Alcatel OT-997D vs Celkon A115
Alcatel OT-997D
Celkon A115
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800
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3G networkHSDPA 900, 2100HSDPA 2100
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HSDPA speedHSDPA, 7.2 MbpsHSDPA
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HSUPA speedHSUPA, 5.76 Mbps-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2012-72014-12
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Status2012-92014-12
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Design
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SIMDual SIM (Mini-SIM, dual stand-by)Dual SIM (Mini-SIM)
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Height129.8 mm148 mm
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Width68 mm74 mm
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Thickness11 mm9.3 mm
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Weight143 g164 g
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ColorsBlack, WhiteBlack, White
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Display
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Display typeTFT capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size4.3 inches5.0 inches
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Resolution480 x 800 pixels480 x 854 pixels
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Pixel density217 ppi196 ppi
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Display colors16777216-
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Hardware
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CPUDual-core 1 GHz ARM Cortex-A9Dual-core 1.3 GHz
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ChipsetMediatek MT6577Mediatek MT6582
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GPUPowerVR SGX531u-
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Memory RAM1 GB512 MB
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Internal storage4 GB4 GB
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Memory cardmicroSDmicroSD
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Memory card max32 GB64 GB
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OS
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OSAndroid OS, v4.0 (Ice Cream Sandwich)Android OS, v4.2.2 (Jelly Bean)
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Main camera
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Main camera8 MP8 MP
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Primary camera resolution3264 x 2448 pixels3264 x 2448 pixels
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Primary camera video720p@30fpsvideo
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Primary camera Autofocusautofocus-
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Primary camera flashLED flash-
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Selfie camera
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Secondary cameraVGA camera-
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Selfie camera1.3 MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration; MP3 ringtonesVibration, Polyphonic, MP3 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 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv4.0Yes
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Bluetooth A2DPYes-
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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 IMIM-
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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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 capacity1800 mAh2000 mAh
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Talk time 2G16 h-
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Talk time 3G8 h 30 min18 h
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Standby time 2G400 h-
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Standby time 3G350 h360 h