Lenovo A850 vs Lenovo A706 vs Lenovo S920 comparison

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General
Release dateSeptember 2013June 2013June 2013-
Form factorTouchscreenBarBar-
Dimensions (mm)153.50 x 79.30 x 9.45136.00 x 69.00 x 10.40154.00 x 77.70 x 7.90-
Weight (g)184.00130.00159.00-
Battery capacity (mAh)225020002250-
Removable batteryYesYesNo-
ColoursWhite, BlackBlack and White/ Grey colours--
SAR ValueNA0.79NA-
Display
Screen size (inches)5.504.505.30-
TouchscreenYesYesYes-
Resolution540x960 pixels480x854 pixels720x1280 pixels-
Hardware
Processor1.3GHz quad-core1.2GHz quad-core1.2GHz quad-core-
Processor makeMTK 6582M-MediaTek -
RAM1GB1GB1GB-
Internal storage4GB4GB4GB-
Expandable storageYesYesYes-
Expandable storage typemicroSDmicroSDmicroSD-
Expandable storage up to (GB)323232-
Camera
Rear camera5-megapixel5-megapixel8-megapixel-
FlashYesYesYes-
Front camera0.3-megapixel0.3-megapixel2-megapixel-
Software
Operating SystemAndroid 4.2Android 4.1Android 4.2-
Connectivity
Wi-FiYesYesYes-
Wi-Fi standards supported802.11 b/g/nNA802.11 a/b/g/n-
GPSYesYesYes-
BluetoothYes, v 4.00Yes, v 3.00Yes, v 3.00-
NFCNoNoNo-
InfraredNoNoNo-
Headphones3.5mm3.5mm3.5mm-
FMNoYesYes-
Number of SIMs222-
SIM1
SIM TypeRegularRegularRegular-
GSM/CDMAGSMGSMGSM-
3GYesYesYes-
4G/LTENoNoNo-
SIM2
SIM TypeRegularRegularRegular-
GSM/CDMAGSMGSMGSM-
3GYesYesYes-
4G/LTENoNoNo-
Sensors
Compass/ MagnetometerNoYesYes-
Proximity sensorYesYesYes-
AccelerometerYesNoYes-
Ambient light sensorYesYesYes-
GyroscopeNoNoYes-
BarometerNoNoNo-
Temperature sensorNoNoNo-