Karbonn A21 vs Samsung W960 AMOLED 3D
Karbonn A21
Samsung W960 AMOLED 3D
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Network
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2G networkGSM 900, 1800, 1900GSM 900, 1800, 1900
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3G networkHSDPA 2100HSDPA
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HSDPA speedHSDPA, 7.2 MbpsHSDPA
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HSUPA speed-HSUPA
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GPRSYesYes
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EDGEYesYes
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Availability
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Status2010-7
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Oficially announced2014-122010-4
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Design
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SIMDual SIM (Mini-SIM)Mini-SIM
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Height113.9 mm
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Width53.9 mm
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Thickness13.9 mm
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Weight120.6 g
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ColorsPearl WhiteBlack
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Display
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Display typeTFT capacitive touchscreenAMOLED 3D capacitive touchscreen
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Physical size4.5 inches3.2 inches
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Resolution480 x 800 pixels240 x 400 pixels
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Pixel density207 ppi146 ppi
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Display colors26214416777216
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Hardware
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CPUDual-core 1.2 GHz
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Memory RAM512 MB-
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Internal storage4 GB-
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Memory cardmicroSDmicroSD
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Memory card max32 GB16 GB
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OS
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OSAndroid OS, v4.0 (Ice Cream Sandwich)-
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Main camera
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Main camera5 MP3.2 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 Autofocusautofocusautofocus
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Primary camera flashLED flash-
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Selfie camera
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Secondary camera-No
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Selfie camera1.3 MP
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Sound
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3.5mm jackYesNo
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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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RadioNoNo
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11n
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv2.1v2.1
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Bluetooth A2DPYesYes
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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 IMIM-
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Messaging Push EmailPush Email-
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JavaYes, via Java MIDP emulatorYes
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Java MIDP-MIDP 2.0
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Browser
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HTMLYesYes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1800 mAh1150 mAh
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Talk time5 h-
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Talk time 2G-6 h
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Talk time 3G-10 h
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Standby time200 h-
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Standby time 2G-425 h
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Standby time 3G-460 h
