HP 7 VoiceTab vs Karbonn A4
HP 7 VoiceTab
Karbonn A4
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 1900
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3G networkHSDPAHSDPA 900, 2100
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HSDPA speed-HSDPA
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HSUPA speed-HSUPA
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HSPA speedHSPA-
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GPRSYesYes
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EDGEYesYes
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Availability
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Status2014-102013-3
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Oficially announced2014-102013-3
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Design
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SIMMicro-SIMDual SIM (Mini-SIM)
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Height102.2 mm124.8 mm
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Width192.1 mm66 mm
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Thickness10.2 mm9.5 mm
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Weight305 g75 g
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ColorsBlack/WhiteWhite/Black
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Display
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Display typeTFT capacitive touchscreenTFT capacitive touchscreen
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Physical size6.95 inches4.0 inches
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Resolution600 x 1024 pixels320 x 480 pixels
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Pixel density171 ppi144 ppi
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Display colors16777216262144
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Hardware
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CPUQuad-core 1.3 GHz ARM Cortex-A7
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ChipsetMediatek MT8382-
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GPUMali-400MP2-
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Internal storage8 GB256, 512 MB
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Memory RAM1 GB-
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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, v4.4.2 (KitKat)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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Primary camera flashLED flash-
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Selfie camera
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Secondary cameraVGA cameraYes
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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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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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Bluetoothv4.0Yes
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GPSYes, with A-GPSNo
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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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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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SensorsAccelerometer, proximity-
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Browser
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HTMLYesYes
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Battery
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Battery type-Li-Ion
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Battery capacity-1400 mAh
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Battery removableNon-removable-
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Talk time-4 h 20 min
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Standby time-250 h
