Micromax A28 Bolt vs Micromax Bolt A51
Micromax A28 Bolt
Micromax Bolt A51
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Network
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2G networkGSM 900, 1800GSM 900, 1800
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3G network-HSDPA 2100
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HSDPA speed-HSDPA
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HSUPA speed-HSUPA
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-122013-4
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Status2014-122013-4
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Design
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SIMDual SIM (Mini-SIM)Dual SIM
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Height116.9 mm118.5 mm
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Width62.5 mm62.5 mm
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Thickness12.5 mm12.8 mm
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Weight89 g118 g
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ColorsBlackBlack/Silver
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Display
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Display typeTFT capacitive touchscreenTFT touchscreen
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Physical size3.5 inches3.5 inches
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Resolution320 x 480 pixels320 x 480 pixels
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Pixel density165 ppi165 ppi
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Display colors66560-
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Hardware
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CPU1 GHz ARM Cortex-A5832 MHz
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GPUMali-300-
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Memory ROM-512 MB
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Memory RAM256 MB256 MB
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Internal storage512 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 (Gingerbread)Android OS, v2.3.7 (Gingerbread)
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Main camera
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Main camera2 MP
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Primary camera resolution640 x 480 pixels1600 x 1200 pixels
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Primary camera video320pvideo
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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, 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, 802.11nWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi Hotspot-Yes
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USBYesYes
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Bluetoothv2.1v3.0
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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(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 Email-Push 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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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1500 mAh1500 mAh
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Talk time4 h4 h 30 min
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Standby time260 h140 h
