Karbonn A25 vs Micromax A28 Bolt
Karbonn A25
Micromax A28 Bolt
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Network
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2G networkGSM 900, 1800, 1900GSM 900, 1800
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-122014-12
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Status2014-122014-12
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Design
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SIMDual SIMDual SIM (Mini-SIM)
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Height146 mm116.9 mm
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Width78.6 mm62.5 mm
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Thickness10.5 mm12.5 mm
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Weight150 g89 g
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ColorsWhite/BlackBlack
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Display
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Display typeCapacitive touchscreenTFT capacitive touchscreen
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Physical size5.0 inches3.5 inches
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Resolution480 x 800 pixels320 x 480 pixels
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Pixel density187 ppi165 ppi
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Display colors-66560
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Hardware
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CPUDual-core 1 GHz1 GHz ARM Cortex-A5
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GPU-Mali-300
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Internal storage114 MB512 MB
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Memory RAM-256 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, v4.0 (Ice Cream Sandwich)Android 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 flashLED flash-
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Selfie camera
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Secondary cameraYesVGA 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-FiWi-Fi 802.11b, 802.11g, 802.11n
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USBYesYes
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BluetoothYesv2.1
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Bluetooth A2DP-Yes
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GPSNoNo
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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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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 capacity2000 mAh1500 mAh
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Talk time6 h4 h
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Standby time300 h260 h
