Icemobile Prime 4.0 vs Karbonn A21
Icemobile Prime 4.0
Karbonn A21
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800, 1900
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3G networkHSDPA 850, 2100HSDPA 2100
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HSDPA speedHSDPAHSDPA, 7.2 Mbps
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HSUPA speedHSUPA-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-52014-12
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Status2014-5
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Design
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SIMDual SIM (Mini-SIM)Dual SIM (Mini-SIM)
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Height124 mm
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Width66 mm
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Thickness9.3 mm
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Weight
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ColorsBlack, Blue, WhitePearl White
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Display
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Display typeIPS LCD capacitive touchscreenTFT capacitive touchscreen
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Physical size3.97 inches4.5 inches
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Resolution480 x 800 pixels480 x 800 pixels
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Pixel density235 ppi207 ppi
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Display colors-262144
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Hardware
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CPUDual-core 1.2 GHz
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ChipsetMediatek MT6572M/W-
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Memory RAM512 MB512 MB
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Internal storage4 GB4 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, v4.2.2 (Jelly Bean)Android OS, v4.0 (Ice Cream Sandwich)
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Main camera
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Main camera2 MP5 MP
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Primary camera resolution1600 x 1200 pixels2592 x 1944 pixels
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Primary camera videovideovideo
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Primary camera Autofocus-autofocus
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Primary camera flashLED flashLED flash
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Selfie camera
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Secondary cameraVGA camera-
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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
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NotificationsVibration, MP3, polyphonic ringtonesVibration, MP3, WAV ringtones
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Multimedia
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Radio-No
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Radio FMFM radio-
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Connectivity
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WLANWi-FiWi-Fi 802.11b, 802.11g, 802.11n
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USBYesmicroUSB 2.0
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BluetoothYesv2.1
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Bluetooth A2DP-Yes
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GPSYesYes, 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 Email-Push Email
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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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 capacity1550 mAh1800 mAh
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Talk time3 h 20 min5 h
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Standby time120 h200 h
