Karbonn Alfa A91 Power vs Karbonn K21 comparison

Show Only Differences Highlight Differences	Karbonn Alfa A91 Power	Karbonn K21
key specs
Display	4.00-inch	2.20-inch
Processor	1GHz one-core	one-core
Front Camera	0.3-megapixel	No
Rear Camera	2-megapixel	1.3-megapixel
RAM	256MB	-
Storage	512MB	-
Battery Capacity	2000mAh	1000mAh
OS	Android 4.4	Proprietary
Resolution	480x800 pixels	176x220 pixels
general
Brand	Karbonn	Karbonn
Model	Alfa A91 Power	K21
Release date	October 1, 2015	December 1, 2011
Form factor	Touchscreen	Bar
Battery capacity (mAh)	2000	1000
Removable battery	No	Yes
Colours	White	Coffee, Grey
Alternate names	-	K21 Radio jockey
Dimensions (mm)	-	111.50 x 47.30 x 14.30
Weight (g)	-	80.00
display
Screen size (inches)	4.00	2.20
Touchscreen	Yes	No
Resolution	480x800 pixels	176x220 pixels
hardware
Processor	1GHz one-core	one-core
RAM	256MB	-
Internal storage	512MB	-
Expandable storage	Yes	Yes
Expandable storage type	microSD	microSD
Expandable storage up to (GB)	32	8
camera
Rear camera	2-megapixel	1.3-megapixel
Rear flash	LED	No
Front camera	0.3-megapixel	No
software
Operating system	Android 4.4	Proprietary
connectivity
Wi-Fi	Yes	No
Wi-Fi standards supported	802.11 b/g/n	-
GPS	Yes	No
Bluetooth	Yes	Yes
NFC	No	No
Infrared	No	No
USB OTG	No	No
Headphones	3.5mm	-
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	Yes	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	Yes	No
Accelerometer	Yes	No
Ambient light sensor	No	No
Gyroscope	No	No
Barometer	No	No
Temperature sensor	No	No

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