Samsung i640 vs T-Mobile MDA Vario IV
Samsung i640
T-Mobile MDA Vario IV
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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 900, 2100
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HSDPA speedHSDPA, 3.6 MbpsHSDPA, 7.2 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 announced2008-22014-12
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Design
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SIMMini-SIMMini-SIM
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Height94.4 mm102 mm
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Width61 mm51 mm
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Thickness16.9 mm18.1 mm
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Weight148 g165 g
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KeyboardQWERTYQWERTY
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ColorsSilverBlack
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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 pixels480 x 640 pixels
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Pixel density167 ppi286 ppi
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Display colors6656066560
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Hardware
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CPU32-bit 416 MHz528 MHz ARM 11
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Chipset-Qualcomm MSM7201A
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GPU-Adreno 130
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Memory ROM128 MB512 MB
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Memory RAM64 MB256 MB
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Memory cardmicroSDmicroSD
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OS
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OSMicrosoft Windows Mobile 6.0 StandardMicrosoft Windows Mobile 6.1 Professional
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Main camera
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Main camera2 MP3.15 MP
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Primary camera resolution1600 x 1200 pixels2048 x 1536 pixels
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Primary camera videovideovideo
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Primary camera Autofocus-autofocus
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Primary camera flash-LED flash
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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 jackNoNo
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LoudspeakerYesYes
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NotificationsVibration; Downloadable polyphonic, MP3 ringtonesVibration; Downloadable polyphonic, MP3, WAV, WMA ringtones
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Multimedia
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RadioNo-
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Radio FM-Stereo FM radio with RDS
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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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Bluetooth A2DP-Yes
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GPSNoYes, with A-GPS
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Features
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Messaging SMSSMSSMS(threaded view)
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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 (Opera 9.5)
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1000 mAh1340 mAh
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Talk time6 h8 h
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Standby time250 h406 h
