Samsung R640 Character vs i-mobile 638CG
Samsung R640 Character
i-mobile 638CG
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Network
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2G networkCDMA 800, 1900GSM 900, 1800, 1900
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3G networkCDMA2000 1x-
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Speed YesYes-
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GPRSYes
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EDGE
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Availability
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Status2011-7
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Oficially announced2011-72009
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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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Width55 mm51 mm
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Thickness15 mm14.5 mm
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Weight120 g
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KeyboardQWERTY-
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ColorsElectric BlueBlack
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Display
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Display typeTFT touchscreenTFT
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Physical size2.8 inches2.4 inches
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Resolution-240 x 320 pixels
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Pixel density-167 ppi
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Display colors262144262144
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Hardware
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Internal storage-25 MB
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Memory cardmicroSDmicroSD
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Memory card max32 GB8 GB
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Main camera
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Main camera1.3 MP3.15 MP
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Primary camera resolution1280 x 1024 pixels2048 x 1536 pixels
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Primary camera videonovideo
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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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RadioNo-
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Radio FM-FM radio
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Connectivity
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WLAN
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USBmicroUSB 2.0Yes
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Bluetoothv2.1Yes
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Bluetooth A2DPYes-
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Bluetooth EDRYes-
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GPSNoNo
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Features
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Messaging SMSSMSSMS(threaded view)
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Messaging EMS-EMS
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Messaging MMS-MMS
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Messaging EmailEmail-
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WAPWAP 2.0/xHTMLWAP 2.0/xHTML
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JavaNoNo
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Browser
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HTMLYes-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1000 mAh1050 mAh
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Talk time5 h8 h 30 min
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Standby time288 h400 h