Amazon Fire HD 7 vs Celkon A20
Amazon Fire HD 7
Celkon A20
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Network
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2G networkGSM 900, 1800
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3G network-HSDPA 2100
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Speed Yes-Yes, 384 kbps
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2014-92013-8
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Status2014-102013-8
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Design
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SIMNoDual SIM (Mini-SIM)
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Height191 mm
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Width128 mm
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Thickness10.6 mm
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Weight337 g
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ColorsBlack, Citron, Cobalt, Magenta, WhiteBlack
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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 pixels480 x 800 pixels
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Pixel density216 ppi233 ppi
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Display colors16777216-
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Hardware
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CPUQuad-core 1.5 GHzDual-core 1.2 GHz
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Memory ROM-256 MB
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Memory RAM1 GB512 MB
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Internal storage8, 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, v4.4 (KitKat)Android OS, v4.2.0 (Jelly Bean)
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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 video1080pvideo
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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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LoudspeakerYes, with stereo speakersYes
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NotificationsVibration; MP3, WAV ringtonesVibration, Polyphonic, MP3 ringtones
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Multimedia
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RadioNo-
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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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USBv2.0(Slimport)microUSB 2.0
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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 EmailPush Email
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JavaNoYes, via Java MIDP emulator
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SensorsAccelerometer, gyro-
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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 capacity-1500 mAh
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Battery removableNon-removable-
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Talk time8 h-
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Standby time--
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