Casio GzOne Ravine 2 vs Celkon A20
Casio GzOne Ravine 2
Celkon A20
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Network
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2G networkCDMA 800, 1900GSM 900, 1800
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3G networkCDMA2000 1xEV-DOHSDPA 2100
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EV-DO speed3.1 Mbps-
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Speed Yes-Yes, 384 kbps
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2011-112013-8
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Status2011-112013-8
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Design
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SIMMini-SIMDual SIM (Mini-SIM)
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Height109.9 mm
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Width50.5 mm
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Thickness21.1 mm
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Weight138 g
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ColorsBlackBlack
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Display
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Display typeTFTTFT capacitive touchscreen
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Physical size2.2 inches4.0 inches
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Resolution240 x 320 pixels480 x 800 pixels
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Pixel density182 ppi233 ppi
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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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Memory RAM256 MB512 MB
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Internal storage512 MB-
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 GB
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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 Autofocusautofocus-
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Primary camera flashLED flash-
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Selfie camera
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Secondary cameraNoVGA camera
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Sound
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3.5mm jackNoYes
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LoudspeakerYesYes
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NotificationsVibration; MP3Vibration, Polyphonic, MP3 ringtones
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Multimedia
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RadioNo-
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Connectivity
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WLANWi-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 SMSSMSSMS(threaded view)
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IM-IM
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Messaging Push Email-Push Email
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JavaNoYes, 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 capacity1150 mAh1500 mAh
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Talk time4 h 41 min-
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Standby time506 h-
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OS
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OS-Android OS, v4.2.0 (Jelly Bean)
