Karbonn Opium N7 vs Karbonn K21 comparison

Compare Karbonn Opium N7
Compare Karbonn K21
key specs
Display4.00-inch2.20-inch
Processor1.2GHz quad-coreone-core
Front Camera0.3-megapixelNo
Rear Camera5-megapixel1.3-megapixel
RAM512MB-
Storage4GB-
Battery Capacity1600mAh1000mAh
OSAndroid 4.3Proprietary
Resolution480x800 pixels176x220 pixels
general
BrandKarbonnKarbonn
ModelOpium N7K21
Release dateJuly 2014December 2011
Battery capacity (mAh)16001000
Removable batteryYesYes
Alternate names-K21 Radio jockey
Form factor-Bar
Dimensions (mm)-111.50 x 47.30 x 14.30
Weight (g)-80.00
Colours-Coffee, Grey
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 camera5-megapixel1.3-megapixel
Rear flashLEDNo
Front camera0.3-megapixelNo
software
Operating systemAndroid 4.3Proprietary
connectivity
Wi-FiYesNo
GPSYesNo
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
3GYesNo
4G/ LTENoNo
sensors
Compass/ MagnetometerNoNo
Proximity sensorYesNo
AccelerometerYesNo
Ambient light sensorNoNo
GyroscopeNoNo
BarometerNoNo
Temperature sensorNoNo
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