Panasonic T31 vs Samsung R640 Character
Panasonic T31
Samsung R640 Character
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Network
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2G networkGSM 850, 900, 1800, 1900CDMA 800, 1900
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3G networkHSDPA 850, 1900, 2100CDMA2000 1x
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HSDPA speedHSDPA, 21 Mbps-
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HSUPA speedHSUPA, 5.76 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 announced2013-102011-7
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Status2013-102011-7
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Design
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SIMDual SIM (Mini-SIM, dual stand-by)Mini-SIM
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Height122 mm107 mm
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Width64.4 mm55 mm
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Thickness11.2 mm15 mm
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Weight120 g120 g
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Keyboard-QWERTY
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ColorsBluish Black, Pure WhiteElectric Blue
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Display
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Display typeTFT capacitive touchscreenTFT touchscreen
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Physical size4.0 inches2.8 inches
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Resolution480 x 800 pixels-
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Pixel density233 ppi-
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Display colors16777216262144
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Hardware
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CPUDual-core 1.3 GHz
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ChipsetMediatek MT6572M-
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GPUMali-400-
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Internal storage4 GB-
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Memory RAM512 MB-
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 GB
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OS
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OSAndroid OS, v4.2.2 (Jelly Bean)-
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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 video720p@24fpsno
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Selfie camera
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Secondary cameraVGA cameraNo
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration; MP3, WAV ringtonesVibration; MP3 ringtones
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Multimedia
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Radio-No
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Radio FMFM radio-
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYes-
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WLAN WiFi DirectYes-
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv4.0v2.1
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Bluetooth A2DPYesYes
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Bluetooth EDR-Yes
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GPSYes, with A-GPSNo
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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 EmailEmailEmail
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Messaging IMIM-
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Messaging Push EmailPush Mail-
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WAP-WAP 2.0/xHTML
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JavaYes, via Java MIDP emulatorNo
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Browser
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HTMLYesYes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1300 mAh1000 mAh
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Talk time-5 h
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Talk time 2G3 h 30 min-
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Talk time 3G9 h 30 min-
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Standby time-288 h
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Standby time 2G510 h-
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Standby time 3G400 h-
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