BenQ-Siemens S81 vs O2 XDA Zest
BenQ-Siemens S81
O2 XDA Zest
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Network
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2G networkGSM 900, 1800, 1900GSM 900, 1800, 1900
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3G networkUMTS 2100HSDPA 2100
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HSDPA speed-HSDPA, 3.6 Mbps
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Speed YesYes, 384 kbps-
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2006-22008-11
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Status
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Design
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SIMMini-SIMMini-SIM
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Height109 mm102 mm
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Width48 mm60.5 mm
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Thickness13 mm16.5 mm
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Weight99 g102.5 g
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ColorsBlack/SilverBlack
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Display
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Display typeTFTTFT resistive touchscreen
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Physical size2.0 inches2.8 inches
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Resolution176 x 220 pixels480 x 640 pixels
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Pixel density141 ppi286 ppi
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Display colors26214466560
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Hardware
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CPU624 MHz Marvell TavorP
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Memory ROM-256 MB
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Internal storage30 MB-
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Memory RAM-128 MB
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Memory cardmicroSDmicroSD
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Memory card max-16 GB
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Main camera
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Main camera1.3 MP3.15 MP
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Primary camera resolution1280 x 1024 pixels2048 x 1536 pixels
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Primary camera videovideovideo
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Primary camera Autofocus-autofocus
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Primary camera flashLED flash-
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Selfie camera
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Secondary cameraVGA cameraVGA camera
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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, AAC ringtonesVibration; Downloadable polyphonic, MP3, WAV, WMA ringtones
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Multimedia
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RadioNoNo
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Connectivity
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WLANWi-Fi 802.11b, 802.11g
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USBYesminiUSB 1.1
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Bluetoothv1.1v2.0
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Bluetooth A2DP-Yes
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GPSNoYes, with A-GPS, SiRF Star III chipset
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Features
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Messaging SMSSMSSMS(threaded view)
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Messaging MMSMMSMMS
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Messaging Instant Messaging-Instant Messaging
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Messaging EmailEmailEmail
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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 capacity920 mAh1300 mAh
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Talk time4 h 50 min5 h
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Standby time320 h260 h
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OS
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OS-Microsoft Windows Mobile 6.1 Professional
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Browser
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HTML-Yes
