Acer Iconia One 7 B1-730 vs Karbonn A4
Acer Iconia One 7 B1-730
Karbonn A4
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Network
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2G networkGSM 850, 1900
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3G network-HSDPA 900, 2100
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HSDPA speed-HSDPA
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HSUPA speed-HSUPA
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2014-42013-3
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Status2014-62013-3
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Design
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SIMNoDual SIM (Mini-SIM)
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Height124.8 mm
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Width66 mm
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Thickness9.5 mm
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Weight75 g
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ColorsRed, black, blue, pink, whiteWhite/Black
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Display
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Display typeIPS LCD capacitive touchscreenTFT capacitive touchscreen
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Physical size7.0 inches4.0 inches
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Resolution800 x 1280 pixels320 x 480 pixels
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Pixel density216 ppi144 ppi
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Display colors-262144
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Hardware
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CPUDual-core 1.6 GHz
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ChipsetIntel Atom Z2560-
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GPUPowerVR SGX544-
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Memory RAM1 GB-
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Internal storage8 GB256, 512 MB
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 GB
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OS
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OSAndroid OS, v4.2.2 (Jelly Bean)Android OS, v2.3.6 (Gingerbread)
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Main camera
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Main camera5 MP3.15 MP
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Primary camera resolution2592 x 1944 pixels2048 x 1536 pixels
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Primary camera videovideovideo
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Selfie camera
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Secondary cameraYesYes
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Sound
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3.5mm jackYesYes
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LoudspeakerYes, with stereo speakersYes
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NotificationsN/AVibration, MP3, WAV ringtones
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Multimedia
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RadioNo-
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Radio FM-FM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi
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WLAN WiFi Hotspot-Yes
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USBmicroUSB 2.0Yes
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BluetoothYesYes
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GPSNoNo
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Features
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Messaging SMS-SMS(threaded view)
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Messaging MMS-MMS
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Messaging EmailEmailEmail
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Messaging IMIMIM
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Messaging Push EmailPush Email-
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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Browser
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HTMLHTML5Yes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity3700 mAh1400 mAh
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Talk time7 h4 h 20 min
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Standby time-250 h
