Karbonn A3 vs NIU Niutek 3G 4.0 N309
Karbonn A3
NIU Niutek 3G 4.0 N309
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Network
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2G networkGSM 850, 1900GSM 850, 900, 1800, 1900
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3G network-HSDPA 850, 1900
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HSDPA speed-HSDPA, 14.4 Mbps
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2013-32012-6
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Status2013-32012-8
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Design
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SIMDual SIM (Mini-SIM)Dual SIM (Mini-SIM)
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Height113 mm123.5 mm
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Width61 mm65 mm
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Thickness13.5 mm10.5 mm
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Weight90 g71 g
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ColorsWhite/BlackBlack, White
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Display
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Display typeTFT capacitive touchscreenTFT capacitive touchscreen
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Physical size4.0 inches4.0 inches
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Resolution320 x 480 pixels480 x 800 pixels
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Pixel density144 ppi233 ppi
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Display colors1677721616777216
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Hardware
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CPU1 GHz1 GHz ARM Cortex-A9
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Chipset-Mediatek MT6575
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GPU-PowerVR SGX531
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Memory ROM512 MB512 MB
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Memory RAM256 MB512 MB
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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, v2.3.6 (Gingerbread)Android OS, v2.3 (Gingerbread)
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Main camera
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Main camera3.15 MP5 MP
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Primary camera resolution2048 x 1536 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 flash-LED flash
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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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LoudspeakerYesYes
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NotificationsVibration, MP3, WAV ringtonesVibration, MP3 ringtones
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Multimedia
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Radio FMFM radioStereo FM radio
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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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WLAN WiFi HotspotYesYes
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USBYesYes
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BluetoothYesv2.1
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GPSNoYes
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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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WAP-WAP 2.0/xHTML
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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 capacity1400 mAh1650 mAh
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Talk time4 h 20 min-
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Talk time 2G-16 h
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Talk time 3G-7 h
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Standby time250 h-
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Standby time 2G-713 h
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Standby time 3G-428 h
