Allview A4 Duo vs BLU Ultra
Allview A4 Duo
BLU Ultra
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Network
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2G networkGSM 900, 1800GSM 850, 1900
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3G networkHSDPA 900, 2100-
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HSDPA speedHSDPA-
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HSUPA speedHSUPA-
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GPRSYes
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EDGEYes
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Availability
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Status2013-11
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Oficially announced2013-112011
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Design
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SIMDual SIM (dual stand-by)Mini-SIM
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Height116.1 mm105.5 mm
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Width63.2 mm45 mm
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Thickness12 mm12.7 mm
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Weight110.6 g
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ColorsBlackBlack, Blue, Red, Yellow
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Display
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Display typeTFT capacitive touchscreenMonochrome graphic
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Physical size3.5 inches1.31 inches
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Resolution320 x 480 pixels96 x 64 pixels
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Pixel density165 ppi88 ppi
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Hardware
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CPUDual-core 1 GHz ARM Cortex-A7
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GPUMali-400-
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Memory RAM512 MB-
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Internal storage-16 MB
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Memory cardmicroSD
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Memory card max-4 GB
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OS
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OSAndroid OS, v4.2 (Jelly Bean)-
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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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Selfie camera
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Secondary cameraNo-
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes
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NotificationsVibration, MP3, WAV ringtonesVibration, Polyphonic
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Multimedia
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Radio FMFM radioFM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYes-
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WLAN WiFi DirectYes-
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USBmicroUSB 2.0Yes
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Bluetoothv4.0
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Bluetooth A2DPYes-
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Bluetooth EDRYes-
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GPSNoNo
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Features
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Messaging SMSSMS(threaded view)SMS
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Messaging MMSMMS-
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Messaging EmailEmail-
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Messaging IMIM-
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Messaging Push EmailPush Email-
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JavaYes, via Java MIDP emulatorNo
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Browser
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HTMLYes-
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Browser-No
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1200 mAh500 mAh
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Talk time8 h 20 min8 h
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Standby time200 h400 h
