BLU Quattro 4.5 HD vs Karbonn A4
BLU Quattro 4.5 HD
Karbonn A4
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 1900
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3G networkHSDPA 850, 900, 1700, 1900, 2100HSDPA 900, 2100
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HSDPA speedHSDPA, 21 MbpsHSDPA
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HSUPA speedHSUPA, 5.76 MbpsHSUPA
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2013-22013-3
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Status2013-22013-3
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Design
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SIMMini-SIMDual SIM (Mini-SIM)
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Height134 mm124.8 mm
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Width67 mm66 mm
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Thickness10.3 mm9.5 mm
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Weight148 g75 g
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ColorsBlackWhite/Black
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Display
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Display typeSuper IPS LCD2 capacitive touchscreenTFT capacitive touchscreen
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Physical size4.5 inches4.0 inches
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Resolution720 x 1280 pixels320 x 480 pixels
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Pixel density326 ppi144 ppi
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Display colors16777216262144
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Hardware
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CPUQuad-core 1.5 GHz
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ChipsetNvidia Tegra 3-
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GPUULP GeForce-
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Memory RAM1 GB-
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Internal storage16 GB256, 512 MB
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Memory cardmicroSD
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Memory card max-32 GB
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OS
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OSAndroid OS, v4.0 (Ice Cream Sandwich)Android OS, v2.3.6 (Gingerbread)
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Main camera
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Main camera8 MP3.15 MP
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Primary camera resolution3264 x 2448 pixels2048 x 1536 pixels
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Primary camera video1080p@24fpsvideo
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Primary camera Autofocusautofocus-
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Primary camera flashLED flash-
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Primary camera video stereo sound recordstereo sound record-
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Selfie camera
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Secondary camera-Yes
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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 ringtonesVibration, MP3, WAV ringtones
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Multimedia
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Radio FMStereo FM radioFM radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11nWi-Fi
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYes-
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WLAN WiFi Dual BandYes-
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WLAN DLNAYes-
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USBmicroUSB 2.0Yes
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Bluetoothv4.0Yes
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Bluetooth A2DPYes-
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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 IMIMIM
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Messaging Push EmailPush 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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Adobe FlashYes-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1800 mAh1400 mAh
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Talk time-4 h 20 min
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Talk time 2G14 h-
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Talk time 3G12 h-
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Standby time-250 h
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Standby time 2G750 h-
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Standby time 3G700 h-