Sony Ericsson Vivaz vs i-mobile 638CG
Sony Ericsson Vivaz
i-mobile 638CG
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800, 1900
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3G networkHSDPA 900, 2100-
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HSDPA speedHSDPA, 10.2 Mbps-
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HSUPA speedHSUPA, 2 Mbps-
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2010-12009
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Status2010-3
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Design
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SIMMini-SIMDual SIM (Mini-SIM)
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Height107 mm113 mm
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Width51.7 mm51 mm
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Thickness12.5 mm14.5 mm
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Weight97 g
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ColorsCosmic Black, Galaxy Blue, Pink, Silver Moon, Venus RubyBlack
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Display
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Display typeTFT resistive touchscreenTFT
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Physical size3.2 inches2.4 inches
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Resolution360 x 640 pixels240 x 320 pixels
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Pixel density229 ppi167 ppi
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Display colors16777216262144
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Hardware
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CPU720 MHz PowerVR SGX
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Internal storage75 MB25 MB
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Memory cardmicroSDmicroSD
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Memory card max32 GB8 GB
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Memory card included8 GB-
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OS
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OSSymbian-
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Main camera
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Camera typePhoto-
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Main camera8 MP3.15 MP
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Primary camera resolution3264 x 2448 pixels2048 x 1536 pixels
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Primary camera video720p@24fpsvideo
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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 cameraNoNo
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes
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NotificationsVibration; MP3 ringtonesVibration; Downloadable polyphonic, MP3 ringtones
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Multimedia
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Radio FMStereo FM radioFM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g
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WLAN DLNAYes-
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USBmicroUSB 2.0Yes
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Bluetoothv2.1Yes
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Bluetooth A2DPYes-
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GPSYes, with A-GPSNo
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GPS NavigatorWisepilot navigation-
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Features
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Messaging SMSSMS(threaded view)SMS(threaded view)
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Messaging EMS-EMS
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Messaging MMSMMSMMS
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Messaging EmailEmail-
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Messaging IMIM-
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Messaging Push EmailPush Email-
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WAPWAP 2.0 / xHTML (NetFront)WAP 2.0/xHTML
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JavaYesNo
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Java MIDPMIDP 2.1-
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity1200 mAh1050 mAh
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Talk time-8 h 30 min
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Talk time 2G13 h-
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Talk time 3G5 h 20 min-
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Standby time-400 h
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Standby time 2G430 h-
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Standby time 3G440 h-
