Allview A4 Duo vs Samsung Galaxy Tab 7.7 LTE I815
Allview A4 Duo
Samsung Galaxy Tab 7.7 LTE I815
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Network
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2G networkGSM 900, 1800CDMA 800, 1900
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3G networkHSDPA 900, 2100CDMA2000 1xEV-DO
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4G network-LTE 700 MHz Class 13
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HSDPA speedHSDPA-
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HSUPA speedHSUPA-
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EV-DO speed-3.1 Mbps
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LTE speed-LTE
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2013-112012-1
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Status2013-112012
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Design
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SIMDual SIM (dual stand-by)Mini-SIM
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Height116.1 mm196.6 mm
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Width63.2 mm133.1 mm
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Thickness12 mm7.9 mm
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Weight110.6 g340.2 g
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ColorsBlackMetallic Gray and White
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Display
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Display typeTFT capacitive touchscreenSuper AMOLED Plus capacitive touchscreen
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Physical size3.5 inches7.7 inches
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Resolution320 x 480 pixels800 x 1280 pixels
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Pixel density165 ppi196 ppi
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Display colors-16777216
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Hardware
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CPUDual-core 1 GHz ARM Cortex-A7Dual-core 1.4 GHz
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Chipset-Exynos 4210
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GPUMali-400Mali-400
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Memory RAM512 MB1 GB
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Internal storage-16, 32 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, v3.2 (Honeycomb)
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Main camera
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Main camera2 MP3.15 MP
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Primary camera resolution1600 x 1200 pixels2048 x 1536 pixels
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Primary camera videovideo720p
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Primary camera Autofocus-autofocus
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Primary camera flash-LED flash
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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, with stereo speakers
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NotificationsVibration, MP3, WAV ringtonesN/A
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Multimedia
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Radio-No
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Radio FMFM 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 HotspotYesYes
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WLAN WiFi DirectYes-
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USBmicroUSB 2.02.0
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Bluetoothv4.0v3.0
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Bluetooth A2DPYesYes
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Bluetooth EDRYes-
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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 EmailPush Mail
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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Browser
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HTMLYesHTML5
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Adobe Flash-Yes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1200 mAh5100 mAh
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Battery removable-Non-removable
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Talk time8 h 20 min-
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Talk time 3G-13 h
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Standby time200 h-
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Standby time 3G-392 h
