Lenovo A850 vs Lenovo Vibe X vs Lenovo S820 vs Lenovo K900 comparison

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key specs
Display5.50-inch5.00-inch4.70-inch5.50-inch
ProcessorMediaTek MT6582MMediaTek MT6589TMediaTek MT6589Intel Atom Z2580
Front Camera0.3-megapixel5-megapixel2-megapixel2-megapixel
Rear Camera5-megapixel13-megapixel12-megapixel13-megapixel
RAM1GB2GB1GB2GB
Storage4GB16GB4GB16GB
Battery Capacity2250mAh2000mAh2000mAh2500mAh
OSAndroid 4.2Android 4.2Android 4.2Android 4.1.2
Resolution540x960 pixels1080x1920 pixels720x1280 pixels1080x1920 pixels
general
BrandLenovoLenovoLenovoLenovo
ModelA850Vibe XS820K900
Release dateSeptember 1, 2013September 1, 2013June 1, 2013June 1, 2013
Form factorTouchscreenBarBarBar
Dimensions (mm)153.50 x 79.30 x 9.45-139.50 x 69.70 x 8.95-
Weight (g)184.00121.00143.00162.00
Battery capacity (mAh)2250200020002500
Removable batteryYesNoYesNo
ColoursWhite, Black---
Thickness-6.9-6.9
display
Screen size (inches)5.505.004.705.50
TouchscreenYesYesYesYes
Resolution540x960 pixels1080x1920 pixels720x1280 pixels1080x1920 pixels
Pixels per inch (PPI)-440--
hardware
Processor1.3GHz quad-core1.5GHz quad-core1.2GHz quad-core2GHz dual-core
Processor makeMediaTek MT6582MMediaTek MT6589TMediaTek MT6589Intel Atom Z2580
RAM1GB2GB1GB2GB
Internal storage4GB16GB4GB16GB
Expandable storageYesNoYesNo
Expandable storage typemicroSD-microSD-
Expandable storage up to (GB)32-32-
camera
Rear camera5-megapixel13-megapixel12-megapixel13-megapixel
Rear flashYesLEDLEDYes
Front camera0.3-megapixel5-megapixel2-megapixel2-megapixel
software
Operating systemAndroid 4.2Android 4.2Android 4.2Android 4.1.2
connectivity
Wi-FiYesYesYesYes
Wi-Fi standards supported802.11 b/g/n-802.11 a/b/g/n-
GPSYesYesYesYes
BluetoothYes, v 4.00YesYes, v 3.00Yes
NFCNoNoNoNo
InfraredNoNoNoNo
USB OTGNoNoNoNo
Headphones3.5mm3.5mm3.5mm-
FMNoYesYesYes
Number of SIMs2121
Wi-Fi DirectNoYesNoYes
Mobile High-Definition Link (MHL)NoNoNoNo
sim 1
SIM TypeRegularMicro-SIMRegularRegular
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/ LTENoNoNoNo
sim 2
SIM TypeRegular-Regular-
GSM/CDMAGSM-GSM-
3GNo-No-
4G/ LTENo-No-
sensors
Compass/ MagnetometerNoYesNoYes
Proximity sensorYesYesYesYes
AccelerometerYesYesYesYes
Ambient light sensorYesNoYesYes
GyroscopeNoNoNoYes
BarometerNoNoNoYes
Temperature sensorNoNoNoNo

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