Karbonn A21 vs Microsoft Kin TWOm
Karbonn A21
Microsoft Kin TWOm
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Network
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2G networkGSM 900, 1800, 1900CDMA 800, 1900
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3G networkHSDPA 2100CDMA2000 1xEV-DO
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HSDPA speedHSDPA, 7.2 Mbps-
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EV-DO speed-3.1 Mbps
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2014-122010-11
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Status
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Design
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SIMDual SIM (Mini-SIM)Mini-SIM
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Height111.3 mm
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Width59.9 mm
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Thickness16.3 mm
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Weight133 g
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Keyboard-QWERTY
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ColorsPearl WhiteBlack
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Display
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Display typeTFT capacitive touchscreenTFT capacitive touchscreen
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Physical size4.5 inches3.4 inches
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Resolution480 x 800 pixels320 x 480 pixels
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Pixel density207 ppi170 ppi
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Display colors26214416777216
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Hardware
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CPUDual-core 1.2 GHz600 MHz ARM 11
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Chipset-Nvidia Tegra
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Memory RAM512 MB256 MB
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Internal storage4 GB8 GB
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Memory cardmicroSD
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Memory card max32 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 MP8 MP
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Primary camera resolution2592 x 1944 pixels3264 x 2448 pixels
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Primary camera videovideo720p
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Primary camera Autofocusautofocusautofocus
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Primary camera flashLED 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 jackYesYes
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LoudspeakerYesYes, with stereo speakers
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NotificationsVibration, MP3, WAV ringtonesVibration; MP3 ringtones
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Multimedia
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RadioNo-
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Radio FM-Stereo FM radio with RDS
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11b, 802.11g
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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 EmailPush Email
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WAP-WAP 2.0/xHTML
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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 mAh-
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Talk time5 h6 h
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Standby time200 h232 h
