Karbonn S15 vs Karbonn K21 comparison

Compare Karbonn S15
Compare Karbonn K21
key specs
Display4.00-inch2.20-inch
Processor1.2GHz quad-coreone-core
Front Camera0.3-megapixelNo
Rear Camera3.2-megapixel1.3-megapixel
RAM512MB-
Storage4GB-
Battery Capacity1500mAh1000mAh
OSAndroid 4.4Proprietary
Resolution480x800 pixels176x220 pixels
general
BrandKarbonnKarbonn
ModelS15K21
Form factorTouchscreenBar
Battery capacity (mAh)15001000
Removable batteryNoYes
ColoursBlack, WhiteCoffee, Grey
Alternate names-K21 Radio jockey
Release date-December 2011
Dimensions (mm)-111.50 x 47.30 x 14.30
Weight (g)-80.00
display
Screen size (inches)4.002.20
TouchscreenYesNo
Resolution480x800 pixels176x220 pixels
hardware
Processor1.2GHz quad-coreone-core
RAM512MB-
Internal storage4GB-
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)328
camera
Rear camera3.2-megapixel1.3-megapixel
Rear flashLEDNo
Front camera0.3-megapixelNo
software
Operating systemAndroid 4.4Proprietary
connectivity
Wi-FiYesNo
Wi-Fi standards supported802.11 b/g/n-
GPSNoNo
BluetoothYesYes
NFCNoNo
InfraredNoNo
USB OTGNoNo
Headphones3.5mm-
FMYesYes
Number of SIMs22
Wi-Fi DirectNoNo
Mobile High-Definition Link (MHL)NoNo
sim 1
SIM TypeRegularRegular
GSM/CDMAGSMGSM
3GYesNo
4G/ LTENoNo
sim 2
SIM TypeRegularRegular
GSM/CDMAGSMGSM
3GNoNo
4G/ LTENoNo
sensors
Compass/ MagnetometerYesNo
Proximity sensorYesNo
AccelerometerYesNo
Ambient light sensorNoNo
GyroscopeNoNo
BarometerNoNo
Temperature sensorNoNo

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