BenQ-Siemens EF51 vs Sony Ericsson K660
BenQ-Siemens EF51
Sony Ericsson K660
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Network
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2G networkGSM 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G network-HSDPA 2100
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HSDPA speed-HSDPA, 3.6 Mbps
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2006-22008-2
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Status
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Design
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SIMMini-SIMMini-SIM
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Height89 mm104 mm
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Width49 mm47 mm
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Thickness18 mm15 mm
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Weight95 g95 g
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ColorsBlack, Flashy WhiteCyan on black, Lime on white, Silver on black, Wine on black
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Display
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Display typeTFTTFT
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Physical size2.2 inches2.0 inches
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Resolution120 x 128 pixels240 x 320 pixels
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Pixel density80 ppi200 ppi
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Display colors262144262144
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Hardware
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Internal storage20 MB32 MB
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Memory cardminiSDMemory Stick Micro (M2)
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Memory card max-4 GB
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Memory card included-256 MB
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Main camera
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Main camera1.3 MP2 MP
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Primary camera resolution1280 x 1024 pixels1600 x 1200 pixels
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Primary camera videono320p@15fps
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Selfie camera
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Secondary cameraNo-
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Secondary camera videocalling-videocalling
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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
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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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GPSNoNo
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Features
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Messaging SMSSMSSMS
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Messaging EMS-EMS
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Messaging MMSMMSMMS
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Messaging Instant Messaging-Instant Messaging
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Messaging Email-Email
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RSS-RSS feeds
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WAPWAP 2.0/xHTMLWAP 2.0/xHTML
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JavaYesYes
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Java MIDPMIDP 2.0MIDP 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 h-
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Talk time 2G-9 h
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Talk time 3G-4 h 30 min
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Standby time200 h-
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Standby time 2G-330 h
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Standby time 3G-330 h
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Browser
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HTML-HTML (NetFront 3.4)
