Alcatel OT-978 vs Celkon A20
Alcatel OT-978
Celkon A20
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800
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3G networkHSDPA 2100HSDPA 2100
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HSDPA speedHSDPA-
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Speed Yes-Yes, 384 kbps
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-122013-8
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Status2013-8
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Design
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SIMMini-SIMDual SIM (Mini-SIM)
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Height127.4 mm
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Width66.1 mm
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Thickness10.9 mm
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Weight144.5 g
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ColorsBlackBlack
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Display
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Display typeTFT capacitive touchscreenTFT capacitive touchscreen
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Physical size4.0 inches4.0 inches
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Resolution480 x 800 pixels480 x 800 pixels
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Pixel density233 ppi233 ppi
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Display colors16777216-
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Hardware
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CPUDual-core 1.2 GHz
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Memory ROM-256 MB
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Internal storage512 MB-
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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, v4.2.0 (Jelly Bean)
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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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Selfie camera
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Secondary cameraVGA cameraVGA camera
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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 FMFM radio-
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Connectivity
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WLANWi-Fi 802.11b, 802.11gWi-Fi 802.11b, 802.11g, 802.11n
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv3.0Yes
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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 IMIMIM
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Messaging Push Email-Push Email
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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 capacity-1500 mAh
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Talk time--
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Standby time--
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