Allview A4 Duo vs Allview E3 Sign
Allview A4 Duo
Allview E3 Sign
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G networkHSDPA 900, 2100HSDPA 900, 2100
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HSDPA speedHSDPA21.1 Mbps
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HSUPA speedHSUPA11.5 Mbps
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2013-112015-3
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Status2013-112015-3
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Design
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SIMDual SIM (dual stand-by)Dual SIM (Micro-SIM, dual stand-by)
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Height116.1 mm152.5 mm
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Width63.2 mm75.9 mm
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Thickness12 mm9.3 mm
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Weight110.6 g161.9 g
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ColorsBlackBlack
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Display
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Display typeTFT capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size3.5 inches5.5 inches
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Resolution320 x 480 pixels720 x 1280 pixels
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Pixel density165 ppi267 ppi
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Hardware
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CPUDual-core 1 GHz ARM Cortex-A7Quad-core 1.3 GHz ARM Cortex-A7
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Chipset-Mediatek MT6582
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GPUMali-400Mali-400
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Memory RAM512 MB2 GB
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Internal storage-16 GB
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Memory cardmicroSD
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Memory card max-32 GB
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OS
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OSAndroid OS, v4.2 (Jelly Bean)Android OS, v4.4.2 (KitKat)
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Main camera
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Main camera2 MP8 MP
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Primary camera resolution1600 x 1200 pixels3264 x 2448 pixels
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Primary camera videovideo1080p@30fps
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Primary camera Autofocus-autofocus
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Primary camera flash-LED flash
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Camera features-Geo-tagging, HDR, face/smile detection, touch focus
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Selfie camera
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Secondary cameraNo-
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Selfie camera2 MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration, MP3, WAV ringtonesVibration; MP3, WAV ringtones
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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, 802.11nWi-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 2.0microUSB 2.0
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Bluetoothv4.0v4.0
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Bluetooth A2DPYesYes
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Bluetooth EDRYesYes
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Infrared-Yes
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GPSNoYes, with A-GPS
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Features
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Messaging SMSSMS(threaded view)SMS(threaded view)
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IMIMIM
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Messaging Push EmailPush Email-
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Messaging Push Mail-Push Mail
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JavaYes, via Java MIDP emulatorNo
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Sensors-Accelerometer, proximity
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Browser
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HTMLYesHTML5
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity1200 mAh2800 mAh
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Talk time8 h 20 min10 h 20 min
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Standby time200 h280 h