Karbonn Smart A12 Star vs Micromax Bolt A66 comparison

Show Only Differences Highlight Differences	Karbonn Smart A12 Star	Micromax Bolt A66
key specs
Display	4.00-inch	4.50-inch
Processor	MediaTek	Spreadtrum SC7710G
Front Camera	0.3-megapixel	0.3-megapixel
Rear Camera	5-megapixel	2-megapixel
RAM	512MB	512MB
Storage	4GB	512MB
Battery Capacity	1400mAh	1500mAh
OS	Android 4.4.2	Android 4.1
Resolution	480x800 pixels	-
general
Brand	Karbonn	Micromax
Model	Smart A12 Star	Bolt A66
Release date	July 1, 2014	January 1, 2014
Form factor	Touchscreen	-
Dimensions (mm)	64.20 x 124.20 x 10.10	-
Weight (g)	130.00	-
Battery capacity (mAh)	1400	1500
Removable battery	No	Yes
Colours	Black, Silver	-
display
Screen size (inches)	4.00	4.50
Touchscreen	Yes	Yes
Resolution	480x800 pixels	-
Pixels per inch (PPI)	233	-
hardware
Processor	1.2GHz one-core	1GHz one-core
Processor make	MediaTek	Spreadtrum SC7710G
RAM	512MB	512MB
Internal storage	4GB	512MB
Expandable storage	Yes	Yes
Expandable storage type	microSD	microSD
Expandable storage up to (GB)	32	32
camera
Rear camera	5-megapixel	2-megapixel
Rear flash	LED	Yes
Front camera	0.3-megapixel	0.3-megapixel
software
Operating system	Android 4.4.2	Android 4.1
connectivity
Wi-Fi	No	Yes
Wi-Fi standards supported	802.11 b/g/n	-
GPS	No	Yes
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
Headphones	-	3.5mm
sim 1
SIM Type	Micro-SIM	Regular
GSM/CDMA	GSM	GSM
3G	No	Yes
4G/ LTE	No	No
sim 2
SIM Type	Micro-SIM	Regular
GSM/CDMA	GSM	GSM
3G	Yes	Yes
4G/ LTE	No	No
sensors
Compass/ Magnetometer	No	No
Proximity sensor	Yes	No
Accelerometer	Yes	No
Ambient light sensor	Yes	No
Gyroscope	No	No
Barometer	No	No
Temperature sensor	No	No

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