Karbonn A4 vs Samsung C3730C
Karbonn A4
Samsung C3730C
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Network
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2G networkGSM 850, 1900GSM 900, 1800, 1900
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3G networkHSDPA 900, 2100TD-SCDMA/ TD-HSPA 1880-1920, 2010-2025
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HSDPA speedHSDPAHSDPA
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HSUPA speedHSUPAHSUPA
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2013-32012
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Status2013-32014-12
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Design
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SIMDual SIM (Mini-SIM)Mini-SIM
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Height124.8 mm104 mm
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Width66 mm49.5 mm
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Thickness9.5 mm14.9 mm
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Weight75 g99.5 g
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ColorsWhite/BlackBlack
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Display
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Display typeTFT capacitive touchscreenTFT
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Physical size4.0 inches2.2 inches
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Resolution320 x 480 pixels240 x 320 pixels
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Pixel density144 ppi182 ppi
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Display colors26214416777216
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Hardware
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Internal storage256, 512 MB80 MB
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Memory cardmicroSDmicroSD
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Memory card max32 GB-
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OS
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OSAndroid OS, v2.3.6 (Gingerbread)-
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Main camera
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Main camera3.15 MP1.3 MP
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Primary camera resolution2048 x 1536 pixels1280 x 1024 pixels
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Primary camera videovideoQCIF@15fps
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Selfie camera
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Secondary cameraYesNo
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Sound
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3.5mm jackYes-
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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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Radio FMFM radioStereo FM radio with RDS
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Connectivity
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WLANWi-Fi
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WLAN WiFi HotspotYes-
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USBYesmicroUSB 2.0
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BluetoothYesYes
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GPSNoNo
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Features
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Messaging SMSSMS(threaded view)SMS
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IMIM-
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WAP-WAP 2.0/xHTML
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JavaYes, via Java MIDP emulatorNo
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Browser
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HTMLYes-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1400 mAh960 mAh
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Talk time4 h 20 min-
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Standby time250 h-
