Karbonn Titanium Wind W4 vs Micromax A28 Bolt
Karbonn Titanium Wind W4
Micromax A28 Bolt
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Network
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2G networkGSM 900, 1800, 1900GSM 900, 1800
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3G networkHSDPA 2100-
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HSPA speedHSPA-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-92014-12
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Status2014-92014-12
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Design
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SIMDual SIMDual SIM (Mini-SIM)
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Height125.1 mm116.9 mm
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Width64.3 mm62.5 mm
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Thickness11 mm12.5 mm
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Weight89 g
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ColorsBlack, Red, WhiteBlack
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Display
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Display typeCapacitive touchscreenTFT capacitive touchscreen
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Physical size4.0 inches3.5 inches
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Resolution480 x 800 pixels320 x 480 pixels
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Pixel density233 ppi165 ppi
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Display colors1677721666560
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Hardware
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CPUQuad-core 1.2 GHz1 GHz ARM Cortex-A5
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GPU-Mali-300
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Memory RAM512 MB256 MB
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Internal storage4 GB512 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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OSMicrosoft Windows Phone 8.1Android OS, v2.3 (Gingerbread)
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Main camera
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Main camera5 MP
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Primary camera resolution2592 x 1944 pixels640 x 480 pixels
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Primary camera videovideo320p
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Primary camera Autofocusautofocus-
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Primary camera flashLED flash-
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Camera featuresYes-
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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, Polyphonic, MP3 ringtones
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Multimedia
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Radio FMFM radioFM radio
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Radio recording-FM recording
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYes-
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USBmicroUSB 2.0Yes
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BluetoothYesv2.1
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Bluetooth A2DP-Yes
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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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JavaNoYes, via Java MIDP emulator
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SensorsYes-
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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 capacity1950 mAh1500 mAh
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Talk time8 h4 h
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Standby time240 h260 h
