Garmin-Asus nuvifone M20 vs Samsung R640 Character
Garmin-Asus nuvifone M20
Samsung R640 Character
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Network
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2G networkGSM 900, 1800, 1900CDMA 800, 1900
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3G networkHSDPA 900, 2100CDMA2000 1x
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HSDPA speedHSDPA, 7.2 Mbps-
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Speed Yes-Yes
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2009-92011-7
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Status2011-7
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Design
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SIMMini-SIMMini-SIM
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Height95.3 mm107 mm
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Width52.5 mm55 mm
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Thickness12.8 mm15 mm
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Weight99 g120 g
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Keyboard-QWERTY
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ColorsBlack, Blue, Green, RedElectric Blue
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Display
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Display typeTFT resistive touchscreenTFT touchscreen
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Physical size2.8 inches2.8 inches
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Resolution480 x 640 pixels-
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Pixel density286 ppi-
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Display colors66560262144
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Hardware
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CPU528 MHz ARM 11
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ChipsetQualcomm MSM7200A-
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GPUAdreno 130-
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Internal storage4, 8 GB-
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Memory cardmicroSD
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Memory card max-32 GB
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OS
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OSMicrosoft Windows Mobile 6.1 Professional-
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Main camera
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Main camera3.15 MP1.3 MP
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Primary camera resolution2048 x 1536 pixels1280 x 1024 pixels
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Primary camera video320p@15fpsno
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Primary camera Autofocusautofocus-
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Selfie camera
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Secondary cameraYesNo
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Sound
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3.5mm jackNoYes
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LoudspeakerYesYes
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NotificationsVibration; Downloadable polyphonic, MP3 ringtonesVibration; 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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USB2.0microUSB 2.0
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Bluetoothv2.0v2.1
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Bluetooth A2DPYesYes
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Bluetooth EDR-Yes
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GPSYesNo
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Features
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Messaging SMSSMS(threaded view)SMS
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Messaging MMSMMS-
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Messaging Instant MessagingInstant Messaging-
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Messaging EmailEmailEmail
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Messaging Push EmailPush email-
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WAPWAP 2.0WAP 2.0/xHTML
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JavaYesNo
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Java MIDPMIDP 2.0-
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Browser
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HTML-Yes
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HTTPYes-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity920 mAh1000 mAh
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Talk time2 h 48 min5 h
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Standby time-288 h
