Karbonn K21+ vs Karbonn K91 comparison

Show Only Differences Highlight Differences	Karbonn K21+	Karbonn K91
key specs
Display	2.20-inch	2.40-inch
Processor	one-core	one-core
Front Camera	No	No
Rear Camera	0.3-megapixel	1.3-megapixel
Battery Capacity	1000mAh	1500mAh
Resolution	128x160 pixels	240x320 pixels
Storage	-	64MB
OS	-	Proprietary
general
Brand	Karbonn	Karbonn
Model	K21+	K91
Release date	September 1, 2012	February 1, 2012
Form factor	Bar	Bar
Battery capacity (mAh)	1000	1500
Removable battery	Yes	Yes
Colours	Silver, Black	Red-Black, Red-White
Dimensions (mm)	-	118.00 x 50.00 x 13.60
Weight (g)	-	95.00
display
Screen size (inches)	2.20	2.40
Touchscreen	No	No
Resolution	128x160 pixels	240x320 pixels
hardware
Processor	one-core	one-core
Expandable storage	Yes	Yes
Expandable storage type	microSD	microSD
Expandable storage up to (GB)	8	8
Internal storage	-	64MB
camera
Rear camera	0.3-megapixel	1.3-megapixel
Front camera	No	No
Rear flash	-	No
connectivity
Wi-Fi	No	No
GPS	No	No
Bluetooth	Yes	Yes
NFC	No	No
Infrared	No	No
USB OTG	No	No
FM	Yes	Yes
Number of SIMs	2	2
Wi-Fi Direct	No	No
Mobile High-Definition Link (MHL)	No	No
sim 1
SIM Type	Regular	Regular
GSM/CDMA	GSM	GSM
3G	No	No
4G/ LTE	No	No
sim 2
SIM Type	Regular	Regular
GSM/CDMA	GSM	GSM
3G	No	No
4G/ LTE	No	No
sensors
Compass/ Magnetometer	No	No
Proximity sensor	No	No
Accelerometer	No	No
Ambient light sensor	No	No
Gyroscope	No	No
Barometer	No	No
Temperature sensor	No	No
software
Operating system	-	Proprietary

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