Samsung Galaxy S II vs Karbonn A7 Star comparison

Compare Samsung Galaxy S II
Compare Karbonn A7 Star
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General
Alternate namesGT-I9100---
Release dateApril 2011May 2013--
Form factor-Touchscreen--
Dimensions (mm)125.30 x 66.10 x 8.49113.00 x 66.00 x 10.40--
Weight (g)116.00---
Battery capacity (mAh)16501400--
Removable batteryYesYes--
Colours-White, Black--
SAR ValueNANA--
Display
Screen size (inches)4.304.50--
TouchscreenYesYes--
Resolution480x800 pixels480x480 pixels--
Pixels per inch (PPI)-218--
Hardware
Processor1.2GHz dual-core1GHz dual-core--
RAM1GB512MB--
Internal storage16GB164MB--
Expandable storageYesYes--
Expandable storage typemicroSDmicroSD--
Expandable storage up to (GB)3232--
Camera
Rear camera8-megapixel5-megapixel--
FlashYesYes--
Front camera2-megapixel0.3-megapixel--
Software
Operating SystemAndroid 2.3Android 4--
Connectivity
Wi-FiYesYes--
Wi-Fi standards supportedNANA--
GPSYesYes--
BluetoothYesYes--
NFCYesNo--
InfraredNoNo--
Headphones3.5mm3.5mm--
FMNoYes--
Number of SIMs12--
SIM1
SIM TypeRegularRegular--
GSM/CDMAGSMGSM--
3GYesNo--
4G/LTENoNo--
SIM2
SIM Type-Regular--
GSM/CDMA-GSM--
3G-No--
4G/LTE-No--
Sensors
Compass/ MagnetometerYesNo--
Proximity sensorYesYes--
AccelerometerYesYes--
Ambient light sensorNoNo--
GyroscopeYesNo--
BarometerNoNo--
Temperature sensorNoNo--