BenQ-Siemens SL91 vs O2 X4
BenQ-Siemens SL91
O2 X4
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Network
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2G networkGSM 900, 1800, 1900GSM 900, 1800
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3G networkUMTS 2100UMTS 2100
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Speed YesYes, 384 kbpsYes, 384 kbps
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GPRSYesYes
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EDGE
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Availability
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Oficially announced2006-72004
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Status
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Design
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SIMMini-SIMMini-SIM
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Height89 mm89.9 mm
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Width47 mm45.1 mm
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Thickness23 mm24 mm
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Weight109 g116 g
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ColorsMagic Black-
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Display
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Display typeTFTTFT
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Physical size2.0 inches-
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Resolution240 x 320 pixels176 x 220 pixels
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Pixel density200 ppi-
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Display colors16777216262144
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Hardware
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Internal storage64 MB-
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Memory cardmicroSDminiSD
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Memory card included-32 MB
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Main camera
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Main camera3.15 MP1.3 MP
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Primary camera resolution2048 x 1536 pixels1280 x 960 pixels
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Primary camera videovideovideo
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Primary camera Autofocusautofocus-
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Primary camera flash-LED flash
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Selfie camera
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Secondary cameraVGA cameraNo
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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, MP3 ringtones
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Multimedia
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Radio-No
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Radio FMStereo FM radio with RDS-
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Connectivity
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WLAN
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USB2.0Yes
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BluetoothYes
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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 MMSMMSMMS
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Messaging EmailEmail-
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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-Ion
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Battery capacity950 mAh-
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Talk time3 h 15 min3 h
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Standby time310 h180 h
