Celkon A20 vs HP 7 VoiceTab
Celkon A20
HP 7 VoiceTab
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G networkHSDPA 2100HSDPA
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HSPA speed-HSPA
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Speed YesYes, 384 kbps-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2013-82014-10
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Status2013-82014-10
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Design
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SIMDual SIM (Mini-SIM)Micro-SIM
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Height102.2 mm
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Width192.1 mm
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Thickness10.2 mm
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Weight305 g
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ColorsBlackBlack/White
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Display
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Display typeTFT capacitive touchscreenTFT capacitive touchscreen
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Physical size4.0 inches6.95 inches
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Resolution480 x 800 pixels600 x 1024 pixels
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Pixel density233 ppi171 ppi
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Display colors-16777216
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Hardware
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CPUDual-core 1.2 GHzQuad-core 1.3 GHz ARM Cortex-A7
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Chipset-Mediatek MT8382
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GPU-Mali-400MP2
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Memory ROM256 MB-
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Memory RAM512 MB1 GB
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Internal storage-8 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, v4.2.0 (Jelly Bean)Android OS, v4.4.2 (KitKat)
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Main camera
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Main camera3.15 MP5 MP
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Primary camera resolution2048 x 1536 pixels2592 x 1944 pixels
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Primary camera videovideovideo
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Primary camera flash-LED flash
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Selfie camera
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Secondary cameraVGA cameraVGA camera
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration, Polyphonic, MP3 ringtonesVibration; MP3, WAV ringtones
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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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USBmicroUSB 2.0microUSB 2.0
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BluetoothYesv4.0
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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 Email
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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Sensors-Accelerometer, proximity
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Browser
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HTMLYesYes
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Battery
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Battery typeLi-Ion-
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Battery capacity1500 mAh-
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Battery removable-Non-removable
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Talk time--
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Standby time--
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Multimedia
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Radio-No
