Samsung A657 vs Samsung Convoy 2
Samsung A657
Samsung Convoy 2
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Network
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2G networkGSM 850, 900, 1800, 1900CDMA 800, 1900
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3G networkHSDPA 850, 1900CDMA2000 1xEV-DO
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HSDPA speedHSDPA, 3.6 Mbps-
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EV-DO speed-3.1 Mbps
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2009-42011-8
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Status20092011-8
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Design
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SIMMini-SIMMini-SIM
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Height115 mm99 mm
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Width52 mm51 mm
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Thickness19.5 mm22 mm
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Weight123 g111 g
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ColorsBlackBlack
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Display
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Display typeTFTTFT
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Physical size1.9 inches2.2 inches
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Resolution176 x 220 pixels240 x 320 pixels
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Pixel density148 ppi182 ppi
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Display colors262144262144
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Hardware
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Memory ROM-256 MB
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Internal storage128 MB-
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Memory RAM-128 MB
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Memory cardmicroSDmicroSD
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Memory card max8 GB32 GB
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Sound
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3.5mm jackNoNo
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LoudspeakerYesYes, with stereo speakers
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NotificationsVibration; Polyphonic(72), MP3 ringtonesVibration, MP3 ringtones
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Multimedia
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RadioNoNo
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Connectivity
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WLAN
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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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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 EmailEmailEmail
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Messaging IM-IM
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WAPWAP 2.0/xHTML-
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JavaYesNo
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Java MIDPMIDP 2.0-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1420 mAh1300 mAh
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Talk time3 h6 h 30 min
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Standby time250 h450 h
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Main camera
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Main camera3.15 MP
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Primary camera resolution-2048 x 1536 pixels
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Primary camera video-video
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Primary camera flash-LED flash
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Selfie camera
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Secondary camera-No
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Browser
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HTML-Yes
