O2 X4 vs Samsung Z720
O2 X4
Samsung Z720
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Network
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2G networkGSM 900, 1800GSM 900, 1800, 1900
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3G networkUMTS 2100HSDPA 2100
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HSDPA speed-HSDPA
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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 announced20042006-8
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Status
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Design
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SIMMini-SIMMini-SIM
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Height89.9 mm104.5 mm
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Width45.1 mm51.3 mm
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Thickness24 mm13.8 mm
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Weight116 g80 g
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Colors-Red, Silver, Violet/Gold
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Display
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Display typeTFTTFT
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Physical size-2.1 inches
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Resolution176 x 220 pixels240 x 320 pixels
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Pixel density-190 ppi
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Display colors262144262144
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Hardware
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Internal storage-20 MB
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Memory cardminiSDmicroSD
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Memory card included32 MB-
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Main camera
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Main camera1.3 MP3.15 MP
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Primary camera resolution1280 x 960 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 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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RadioNoNo
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Connectivity
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WLAN
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USBYes1.1
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Bluetoothv2.0
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Bluetooth A2DP-Yes
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InfraredYes-
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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 Email-Email
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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 capacity-900 mAh
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Talk time3 h5 h
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Standby time180 h300 h
