HTC ThunderBolt 4G vs Karbonn A2
HTC ThunderBolt 4G
Karbonn A2
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Network
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2G networkCDMA 800, 1900GSM 900, 1800, 1900
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3G networkCDMA2000 1xEV-DO-
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4G networkLTE 700 MHz Class 13-
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EV-DO speed3.1 Mbps-
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LTE speedLTE-
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2011-12013-3
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Status2011-32013-3
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Design
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SIMMini-SIMDual SIM (Mini-SIM)
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Height122 mm124 mm
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Width66 mm63.6 mm
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Thickness13 mm12.4 mm
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Weight164 g110 g
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ColorsBlackWhite/Black
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Display
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Display typeTFT capacitive touchscreenCapacitive touchscreen
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Physical size4.3 inches4.0 inches
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Resolution480 x 800 pixels480 x 800 pixels
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Pixel density217 ppi233 ppi
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Display colors16777216-
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Hardware
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CPU1 GHz Scorpion
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ChipsetQualcomm MSM8655 Snapdragon-
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GPUAdreno 205-
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Memory RAM768 MB-
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Internal storage4 GB200 MB
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 GB
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Memory card included32 GB-
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OS
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OSAndroid OS, v2.2 (Froyo)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 video720pvideo
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Primary camera Autofocusautofocus-
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Primary camera flashLED flash-
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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, WAV ringtonesVibration, MP3, WAV ringtones
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Multimedia
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Radio FMStereo FM radio with RDSFM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYes-
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WLAN DLNAYes-
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USBmicroUSB 2.0Yes
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Bluetoothv2.1Yes
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Bluetooth A2DPYes-
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Bluetooth EDRYes-
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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 capacity1400 mAh1750 mAh
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Talk time6 h 30 min3 h 30 min
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Standby time330 h120 h
