Realme C71 4G vs Karbonn A21 comparison

Show Only Differences Highlight Differences	Realme C71 4G	Karbonn A21
key specs
Display	6.67-inch	4.50-inch
Processor	Unisoc T7250	Qualcomm Snapdragon S4 Play
Front Camera	5-megapixel	1.3-megapixel
Rear Camera	13-megapixel	5-megapixel
RAM	4GB, 6GB	512MB
Storage	64GB, 128GB	4GB
Battery Capacity	6300mAh	1800mAh
OS	Android 15	Android 4
Resolution	720x1604 pixels	480x800 pixels
general
Brand	Realme	Karbonn
Model	C71 4G	A21
Release date	July 15, 2025	December 1, 2012
Launched in India	Yes	-
Form factor	Touchscreen	Bar
Dimensions (mm)	167.20 x 76.22 x 7.94	-
Weight (g)	201.00	-
IP rating	IP54	-
Battery capacity (mAh)	6300	1800
Colours	Obsidian Black, Sea Blue	Pearl White
Removable battery	-	No
display
Refresh Rate	120 Hz	-
Resolution Standard	HD+	-
Screen size (inches)	6.67	4.50
Touchscreen	Yes	Yes
Resolution	720x1604 pixels	480x800 pixels
hardware
Processor	octa-core	1.2GHz one-core
Processor make	Unisoc T7250	Qualcomm Snapdragon S4 Play (MSM8225)
RAM	4GB, 6GB	512MB
Internal storage	64GB, 128GB	4GB
Expandable storage	-	Yes
Expandable storage type	-	microSD
Expandable storage up to (GB)	-	32
camera
Rear camera	13-megapixel	5-megapixel
Front camera	5-megapixel	1.3-megapixel
No. of Front Cameras	1	-
Rear flash	-	LED
software
Operating system	Android 15	Android 4
Skin	Realme UI 6	-
connectivity
Wi-Fi	Yes	No
GPS	Yes	Yes
Bluetooth	Yes, v 5.20	Yes
USB Type-C	Yes	-
Number of SIMs	2	2
Active 4G on both SIM cards	Yes	-
NFC	-	No
Infrared	-	No
USB OTG	-	No
FM	-	No
Wi-Fi Direct	-	No
Mobile High-Definition Link (MHL)	-	No
sensors
Fingerprint sensor	Yes	-
Compass/ Magnetometer	Yes	No
Proximity sensor	Yes	No
Accelerometer	Yes	No
Gyroscope	Yes	No
Ambient light sensor	-	No
Barometer	-	No
Temperature sensor	-	No
sim 1
SIM Type	-	Regular
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	No
sim 2
SIM Type	-	Regular
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	No

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