Samsung A637 vs Samsung X520
Samsung A637
Samsung X520
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800, 1900
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3G networkUMTS 850, 1900-
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Speed YesYes, 384 kbps-
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2008-102006-10
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Status
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Design
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SIMMini-SIMMini-SIM
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Height86 mm89 mm
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Width43 mm42 mm
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Thickness20 mm18 mm
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Weight92 g80 g
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ColorsWhiteBlack, Blue, Green, Red
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Display
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Display typeTFTTFT
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Physical size1.9 inches1.9 inches
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Resolution144 x 176 pixels128 x 160 pixels
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Pixel density120 ppi108 ppi
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Display colors26214466560
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Hardware
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Internal storage50 MB2.8 MB
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Memory cardmicroSD
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Memory card max8 GB-
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Main camera
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Main camera1.3 MP
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Primary camera resolution1280 x 1024 pixels640 x 480 pixels
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Primary camera videovideono
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Selfie camera
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Secondary cameraNoNo
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Sound
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3.5mm jackNoNo
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LoudspeakerNoYes
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NotificationsVibration; Downloadable polyphonic, MP3 ringtonesVibration; Downloadable polyphonic ringtones
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Multimedia
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RadioNo-
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Radio FM-Stereo FM radio
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Connectivity
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WLAN
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USBYesYes
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Bluetoothv2.0
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Bluetooth A2DPYes-
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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 EMSEMSEMS
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Messaging MMSMMSMMS
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Messaging EmailEmail-
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WAPWAP 2.0/xHTMLWAP 1.2/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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HTMLYes-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity800 mAh750 mAh
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Talk time4 h6 h 20 min
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Standby time350 h310 h
