Samsung Galaxy S Duos 2 vs Karbonn A21 comparison

Show Only Differences Highlight Differences	Samsung Galaxy S Duos 2	Karbonn A21
key specs
Display	4.00-inch	4.50-inch
Processor	1.2GHz dual-core	Qualcomm Snapdragon S4 Play
Front Camera	0.3-megapixel	1.3-megapixel
Rear Camera	5-megapixel	5-megapixel
RAM	768MB	512MB
Storage	4GB	4GB
Battery Capacity	1500mAh	1800mAh
OS	Android 4.2	Android 4
Resolution	480x800 pixels	480x800 pixels
general
Brand	Samsung	Karbonn
Model	Galaxy S Duos 2	A21
Release date	November 1, 2013	December 1, 2012
Form factor	Touchscreen	Bar
Dimensions (mm)	121.50 x 63.10 x 10.50	-
Weight (g)	118.00	-
Battery capacity (mAh)	1500	1800
Removable battery	Yes	No
Colours	White, Black	Pearl White
display
Screen size (inches)	4.00	4.50
Touchscreen	Yes	Yes
Resolution	480x800 pixels	480x800 pixels
hardware
Processor	1.2GHz dual-core	1.2GHz one-core
RAM	768MB	512MB
Internal storage	4GB	4GB
Expandable storage	Yes	Yes
Expandable storage type	microSD	microSD
Expandable storage up to (GB)	64	32
Processor make	-	Qualcomm Snapdragon S4 Play (MSM8225)
camera
Rear camera	5-megapixel	5-megapixel
Rear flash	Yes	LED
Front camera	0.3-megapixel	1.3-megapixel
software
Operating system	Android 4.2	Android 4
connectivity
Wi-Fi	Yes	No
Wi-Fi standards supported	802.11 b/g/n	-
GPS	Yes	Yes
Bluetooth	Yes	Yes
NFC	No	No
Infrared	No	No
USB OTG	No	No
Headphones	3.5mm	-
FM	Yes	No
Number of SIMs	2	2
Wi-Fi Direct	Yes	No
Mobile High-Definition Link (MHL)	No	No
sim 1
SIM Type	Regular	Regular
GSM/CDMA	GSM	GSM
3G	Yes	Yes
4G/ LTE	No	No
sim 2
SIM Type	Regular	Regular
GSM/CDMA	GSM	GSM
3G	Yes	Yes
4G/ LTE	No	No
sensors
Compass/ Magnetometer	Yes	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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