BenQ-Siemens EF81 vs Siemens AF51
BenQ-Siemens EF81
Siemens AF51
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Network
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2G networkGSM 900, 1800, 1900GSM 900, 1800, 1900
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3G networkUMTS 2100-
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Speed YesYes, 384 kbps-
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GPRSYesYes
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EDGE
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Availability
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Oficially announced2006-12005-11
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Status
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Design
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SIMMini-SIMMini-SIM
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Height94 mm79 mm
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Width51 mm41 mm
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Thickness15.9 mm19.6 mm
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Weight110 g80 g
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ColorsTitanium SilverDolphin Grey, Panther Black
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Display
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Display typeTFTCSTN
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Physical size2.2 inches-
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Resolution240 x 320 pixels130 x 130 pixels
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Pixel density182 ppi-
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Display colors26214466560
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Hardware
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Internal storage64 MB-
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Memory cardmicroSD
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Memory card max1 GB-
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Main camera
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Main camera2 MP
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Primary camera resolution1600 x 1200 pixels-
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Primary camera videovideo-
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Primary camera rotating lensrotating lens-
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Selfie camera
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Secondary cameraNo-
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Sound
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3.5mm jackNoNo
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LoudspeakerNoYes
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NotificationsVibration; Downloadable polyphonic, AAC ringtonesVibration; Polyphonic(32) 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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USBYes
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BluetoothYes
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GPSNoNo
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Features
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Messaging SMSSMSSMS
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Messaging MMSMMSMMS
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Messaging EmailEmail-
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WAPWAP 2.0/xHTMLWAP 1.2.1
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JavaYesYes
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Java MIDPMIDP 2.0MIDP 1.0
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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 capacity950 mAh620 mAh
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Talk time4 h 30 min5 h
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Standby time300 h220 h
