Micromax A28 Bolt vs Micromax X291
Micromax A28 Bolt
Micromax X291
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Network
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2G networkGSM 900, 1800GSM 900, 1800
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-122012-5
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Status2014-12
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Design
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SIMDual SIM (Mini-SIM)Dual SIM (Mini-SIM)
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Height116.9 mm119 mm
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Width62.5 mm54 mm
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Thickness12.5 mm12.6 mm
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Weight89 g98.6 g
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ColorsBlackBlack, Silver, White
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Display
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Display typeTFT capacitive touchscreenTFT
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Physical size3.5 inches2.6 inches
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Resolution320 x 480 pixels240 x 320 pixels
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Pixel density165 ppi154 ppi
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Display colors66560-
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Hardware
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CPU1 GHz ARM Cortex-A5
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GPUMali-300-
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Internal storage512 MB-
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Memory RAM256 MB-
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Memory cardmicroSDmicroSD
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Memory card max32 GB8 GB
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OS
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OSAndroid OS, v2.3 (Gingerbread)-
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Main camera
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Main camera1.3 MP
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Primary camera resolution640 x 480 pixels1280 x 1024 pixels
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Primary camera video320pvideo
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Selfie camera
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Secondary cameraVGA cameraNo
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration, Polyphonic, MP3 ringtonesVibration, Polyphonic, MP3 ringtones
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Multimedia
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Radio FMFM radioFM radio
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Radio recordingFM recording-
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11n
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USBYesYes
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Bluetoothv2.1Yes
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Bluetooth A2DPYes-
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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 EmailEmail-
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Messaging IMIM-
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WAP-Yes
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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 capacity1500 mAh1450 mAh
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Talk time4 h7 h
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Standby time260 h350 h
