BenQ-Siemens EF51 vs Sony Ericsson K550im
BenQ-Siemens EF51
Sony Ericsson K550im
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Network
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2G networkGSM 900, 1800, 1900GSM 850, 900, 1800, 1900
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2006-22007-2
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Status
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Design
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SIMMini-SIMMini-SIM
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Height89 mm102 mm
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Width49 mm46 mm
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Thickness18 mm14 mm
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Weight95 g85 g
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ColorsBlack, Flashy WhiteJet Black
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Display
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Display typeTFTTFD
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Physical size2.2 inches1.9 inches
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Resolution120 x 128 pixels176 x 220 pixels
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Pixel density80 ppi148 ppi
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Display colors262144262144
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Hardware
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Internal storage20 MB77 MB
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Memory cardminiSDMemory Stick Micro (M2)
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Memory card max-2 GB
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Main camera
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Main camera1.3 MP2 MP
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Primary camera resolution1280 x 1024 pixels1632 x 1224 pixels
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Primary camera videonoQCIF
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Primary camera Autofocus-autofocus
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Primary camera flash-LED flash
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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, MP3, AAC ringtones, composer
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Multimedia
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Radio FMFM radioStereo FM radio with RDS
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Connectivity
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WLAN
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USBYes2.0
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Bluetoothv1.2v2.0
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Bluetooth A2DPYesYes
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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 MMSMMS-
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Messaging iMMS-iMMS
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Messaging Instant Messaging-Instant Messaging
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Messaging iEmail-iEmail
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WAPWAP 2.0/xHTML-
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JavaYesYes
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Java DoJa-DoJa
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Java MIDPMIDP 2.0-
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity870 mAh950 mAh
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Talk time4 h7 h
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Standby time200 h350 h
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Browser
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Browser-i-mode
