Karbonn KT21 Express vs Posh Orion Max X550
Karbonn KT21 Express
Posh Orion Max X550
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Network
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2G networkGSMGSM 850, 900, 1800, 1900
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3G network-HSDPA 850, 1900
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HSDPA speed-21.1 Mbps
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HSUPA speed-5.76 Mbps
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-122014-7
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Status2014-9
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Design
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SIMDual SIM (Mini-SIM)Dual SIM (Mini-SIM, dual stand-by)
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Height156.3 mm
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Width77.4 mm
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Thickness9.6 mm
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Weight194 g
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ColorsBlackBlack, Blue, White
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Display
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Display typeTFT capacitive touchscreenIPS capacitive touchscreen
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Physical size2.8 inches5.5 inches
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Resolution-540 x 960 pixels
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Pixel density-200 ppi
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Display colors-16777216
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Hardware
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CPUQuad-core 1.3 GHz ARM Cortex-A7
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Chipset-Mediatek MT6582M
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GPU-Mali-400
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Memory RAM-1 GB
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Internal storage-4 GB
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 GB
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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 videovideo720p
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Primary camera Autofocus-autofocus
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Primary camera flashLED flashLED flash
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Camera features-Geo-tagging, HDR, face/smile detection, panorama
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Selfie camera
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Secondary cameraNo-
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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, with stereo speakers
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NotificationsVibration, Polyphonic(64), MP3 ringtonesVibration; MP3, WAV ringtones
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Multimedia
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Radio FMFM radioStereo FM radio with RDS
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Radio recordingFM recording-
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11n
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USBYesmicroUSB 2.0
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BluetoothYesv3.0
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Bluetooth EDR-Yes
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GPSNoYes, with A-GPS
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GLONASS-Yes
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Features
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Messaging SMSSMSSMS(threaded view)
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IM-IM
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Messaging Push Mail-Push Mail
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JavaYesNo
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Sensors-Accelerometer, proximity
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Browser
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HTML-HTML5
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BrowserYes-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1000 mAh2500 mAh
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Talk time--
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Talk time 2G-23 h
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Talk time 3G-13 h
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Standby time--
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Standby time 2G-650 h
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Standby time 3G-600 h
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OS
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OS-Android OS, v4.4.2 (KitKat)
