Samsung i640 vs i-mate JASJAM
Samsung i640
i-mate JASJAM
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Network
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2G networkGSM 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 2100HSDPA 850, 1900, 2100
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HSDPA speedHSDPA, 3.6 MbpsHSDPA, 1.8 Mbps
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GPRSYesYes
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EDGEYesYes
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Availability
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Status
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Oficially announced2008-22006-6
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Design
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SIMMini-SIMMini-SIM
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Height94.4 mm112.5 mm
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Width61 mm58 mm
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Thickness16.9 mm22 mm
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Weight148 g176 g
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KeyboardQWERTYQWERTY
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ColorsSilverSilver
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Display
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Display typeTFTTFT resistive touchscreen
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Physical size2.4 inches2.8 inches
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Resolution320 x 240 pixels240 x 320 pixels
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Pixel density167 ppi143 ppi
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Display colors6656066560
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Hardware
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CPU32-bit 416 MHz400 MHz Samsung
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Memory ROM128 MB128 MB
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Memory RAM64 MB64 MB
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Memory cardmicroSDmicroSD
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OS
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OSMicrosoft Windows Mobile 6.0 StandardMicrosoft Windows Mobile 5.0 PocketPC
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Main camera
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Main camera2 MP2 MP
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Primary camera resolution1600 x 1200 pixels1600 x 1200 pixels
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Primary camera videovideovideo
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Primary camera flash-LED flash
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Selfie camera
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Secondary cameraVGA cameraQCIF videocall camera
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Sound
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3.5mm jackNoNo
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LoudspeakerYesYes
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NotificationsVibration; Downloadable polyphonic, MP3 ringtonesVibration; Downloadable polyphonic, MP3 ringtones
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Multimedia
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RadioNoNo
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Connectivity
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WLANWi-Fi 802.11b, 802.11g
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USB1.1Yes
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Bluetoothv2.0v2.0
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Infrared-Yes
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GPSNoNo
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Features
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Messaging SMSSMSSMS
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Messaging MMSMMSMMS
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Messaging Instant MessagingInstant MessagingInstant Messaging
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Messaging EmailEmailEmail
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WAPWAP 2.0/xHTMLWAP 2.0/xHTML
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JavaYesYes
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Java MIDPMIDP 2.0MIDP 2.0
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Browser
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HTMLYesHTML (PocketIE)
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1000 mAh1300 mAh
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Talk time6 h5 h
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Standby time250 h200 h
