Karbonn A4 vs Panasonic P55
Karbonn A4
Panasonic P55
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Network
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2G networkGSM 850, 1900GSM 900, 1800, 1900
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3G networkHSDPA 900, 2100HSDPA 900, 2100
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HSDPA speedHSDPA-
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HSUPA speedHSUPA-
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HSPA speed-HSPA
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2013-32014-11
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Status2013-32014-11
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Design
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SIMDual SIM (Mini-SIM)Dual SIM
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Height124.8 mm149.7 mm
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Width66 mm77 mm
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Thickness9.5 mm7.9 mm
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Weight75 g148 g
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ColorsWhite/BlackDeep Blue, Pearl White
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Display
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Display typeTFT capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size4.0 inches5.5 inches
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Resolution320 x 480 pixels720 x 1280 pixels
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Pixel density144 ppi267 ppi
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Display colors26214416777216
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Hardware
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CPUQuad-core 1.2 GHz
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Internal storage256, 512 MB4 GB
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Memory RAM-1 GB
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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)Android OS, v4.4.2 (KitKat)
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Main camera
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Main camera3.15 MP8 MP
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Primary camera resolution2048 x 1536 pixels3264 x 2448 pixels
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Primary camera videovideo1080p
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Primary camera Autofocus-autofocus
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Primary camera flash-LED flash
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Camera features-Geo-tagging, face detection, touch focus
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Selfie camera
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Secondary cameraYes-
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Selfie camera2 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 FMFM radioFM radio with RDS
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Connectivity
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WLANWi-FiWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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WLAN WiFi Direct-Yes
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USBYesmicroUSB 2.0
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BluetoothYesv4.0
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Bluetooth A2DP-Yes
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GPSNoYes, with A-GPS
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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 Mail
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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Sensors-Accelerometer, proximity
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Browser
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HTMLYesHTML5
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1400 mAh2500 mAh
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Talk time4 h 20 min-
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Standby time250 h-
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