Huawei Ascend Y540 vs Karbonn A4
Huawei Ascend Y540
Karbonn A4
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 1900
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3G networkHSDPA 900, 2100HSDPA 900, 2100
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HSDPA speed21.1 MbpsHSDPA
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HSUPA speed5.76 MbpsHSUPA
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2015-22013-3
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Status2015-22013-3
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Design
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SIMYesDual SIM (Mini-SIM)
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Height134.2 mm124.8 mm
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Width67 mm66 mm
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Thickness10.3 mm9.5 mm
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Weight75 g
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ColorsBlack, WhiteWhite/Black
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Display
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Display typeTFT capacitive touchscreenTFT capacitive touchscreen
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Physical size4.5 inches4.0 inches
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Resolution480 x 854 pixels320 x 480 pixels
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Pixel density218 ppi144 ppi
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Display colors16777216262144
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Hardware
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CPUDual-core 1.3 GHz ARM Cortex-A7
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ChipsetMediatek-
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GPUMali-400-
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Memory RAM1 GB-
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Internal storage4 GB256, 512 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, v4.4.x (KitKat)Android OS, v2.3.6 (Gingerbread)
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Main camera
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Main camera5 MP3.15 MP
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Primary camera resolution2592 x 1944 pixels2048 x 1536 pixels
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Primary camera video720pvideo
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Primary camera flashLED flash-
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Camera featuresGeo-tagging-
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Selfie camera
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Secondary cameraVGA cameraYes
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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-
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Radio FM-FM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYes-
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USBmicroUSB 2.0Yes
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Bluetoothv4.0Yes
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Bluetooth A2DPYes-
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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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SensorsAccelerometer, proximity-
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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 mAh1400 mAh
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Talk time-4 h 20 min
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Talk time 3G5 h-
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Standby time-250 h
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Standby time 3G300 h-
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