BenQ-Siemens EF51 vs Sewon SGD-1020
BenQ-Siemens EF51
Sewon SGD-1020
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Network
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2G networkGSM 900, 1800, 1900GSM 900, 1800
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GPRSYes
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EDGE
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Availability
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Oficially announced2006-22004
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Status
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Design
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SIMMini-SIMMini-SIM
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Height89 mm82 mm
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Width49 mm42.4 mm
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Thickness18 mm21 mm
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Weight95 g90 g
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ColorsBlack, Flashy White-
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Display
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Display typeTFTSTN
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Physical size2.2 inches-
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Resolution120 x 128 pixels128 x 128 pixels
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Pixel density80 ppi-
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Display colors26214466560
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Hardware
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Internal storage20 MB-
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Memory cardminiSD
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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 videonono
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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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LoudspeakerNoNo
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NotificationsVibration; Downloadable polyphonic, MP3 ringtonesVibration; Downloadable polyphonic 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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WLAN
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USBYes
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Bluetoothv1.2
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Bluetooth A2DPYes-
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GPSNoNo
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Features
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Messaging SMSSMSSMS
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Messaging MMSMMS-
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WAPWAP 2.0/xHTMLYes
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JavaYesNo
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Java MIDPMIDP 2.0-
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Languages-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity870 mAh900 mAh
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Talk time4 h-
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Standby time200 h-
