Motorola A728 vs O2 XDA Comet
Motorola A728
O2 XDA Comet
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Network
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2G networkGSM 900, 1800, 1900GSM 900, 1800, 1900
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3G network-HSDPA 1900, 2100
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HSDPA speed-HSDPA
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2005-72007-9
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Status
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Design
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SIMMini-SIMMini-SIM
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Height101 mm106 mm
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Width53 mm58 mm
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Thickness21 mm19 mm
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Weight120 g145 g
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ColorsBlackSilver
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Display
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Display typeTFT resistive touchscreenTFT resistive touchscreen
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Physical size-2.7 inches
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Resolution240 x 320 pixels240 x 320 pixels
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Pixel density-148 ppi
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Display colors6656066560
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Hardware
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CPU620 MHz Intel XScale PXA 270
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Memory ROM-1 GB
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Internal storage8 MB-
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Memory RAM-64 MB
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Memory cardminiSD
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OS
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OSLinuxMicrosoft Windows Mobile 6.0 Professional
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Main camera
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Main camera2 MP
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Primary camera resolution352 x 288 pixels1600 x 1200 pixels
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Primary camera videovideovideo
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Primary camera flash-LED flash
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Selfie camera
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Secondary cameraNoVGA 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 ringtonesVibration; Downloadable polyphonic, MP3 ringtones
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Multimedia
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RadioNo-
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Radio FM-Stereo FM radio with RDS
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Connectivity
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WLANWi-Fi 802.11b, 802.11g
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USBYesYes
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BluetoothYesv1.2
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InfraredYesYes
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GPSNoNo
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Features
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Messaging SMSSMSSMS
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Messaging EMSEMS-
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Messaging MMSMMSMMS
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Messaging Instant MessagingInstant MessagingInstant 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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Browser
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HTMLYesHTML (PocketIE)
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Battery
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Battery typeLi-IonLi-Ion
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Talk time-6 h
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Standby time-200 h
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