Karbonn A4 vs Philips X525
Karbonn A4
Philips X525
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Network
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2G networkGSM 850, 1900GSM 900, 1800, 1900
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3G networkHSDPA 900, 2100-
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HSDPA speedHSDPA-
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HSUPA speedHSUPA-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2013-32011
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Status2013-3
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Design
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SIMDual SIM (Mini-SIM)Dual SIM (Mini-SIM, dual stand-by)
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Height124.8 mm160 mm
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Width66 mm51 mm
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Thickness9.5 mm14.4 mm
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Weight75 g108 g
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ColorsWhite/BlackSilver
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Display
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Display typeTFT capacitive touchscreenTFT resistive touchscreen
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Physical size4.0 inches3.0 inches
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Resolution320 x 480 pixels240 x 400 pixels
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Pixel density144 ppi155 ppi
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Display colors262144262144
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Hardware
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Internal storage256, 512 MB44 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, v2.3.6 (Gingerbread)-
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Main camera
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Main camera3.15 MP3.15 MP
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Primary camera resolution2048 x 1536 pixels2048 x 1536 pixels
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Primary camera videovideoQCIF
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Primary camera flash-LED flash
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Selfie camera
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Secondary cameraYesNo
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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 ringtones
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Multimedia
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Radio FMFM radioStereo FM radio with RDS
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Connectivity
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WLANWi-Fi
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WLAN WiFi HotspotYes-
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USBYesminiUSB 2.0
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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 IMIM-
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WAP-WAP 2.0/xHTML
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JavaYes, via Java MIDP emulatorYes
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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 capacity1400 mAh1530 mAh
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Talk time4 h 20 min14 h
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Standby time250 h1080 h
