Realme C71 4G vs Redmi K40 comparison

Show Only Differences Highlight Differences	Realme C71 4G	Redmi K40
key specs
Display	6.67-inch	6.67-inch
Processor	Unisoc T7250	Qualcomm Snapdragon 870
Front Camera	5-megapixel	20-megapixel
Rear Camera	13-megapixel	48-megapixel + 8-megapixel + 5-megapixel
RAM	4GB, 6GB	6GB, 8GB, 12GB
Storage	64GB, 128GB	128GB, 256GB
Battery Capacity	6300mAh	4520mAh
OS	Android 15	Android 11
Resolution	720x1604 pixels	1080x2400 pixels
general
Brand	Realme	Xiaomi
Model	C71 4G	Redmi K40
Release date	July 15, 2025	February 25, 2021
Launched in India	Yes	No
Form factor	Touchscreen	Touchscreen
Dimensions (mm)	167.20 x 76.22 x 7.94	163.70 x 76.40 x 7.80
Weight (g)	201.00	196.00
IP rating	IP54	-
Battery capacity (mAh)	6300	4520
Colours	Obsidian Black, Sea Blue	Dreamland, Glossy Black, Icy White
Fast charging	-	Proprietary
display
Refresh Rate	120 Hz	-
Resolution Standard	HD+	-
Screen size (inches)	6.67	6.67
Touchscreen	Yes	Yes
Resolution	720x1604 pixels	1080x2400 pixels
Aspect ratio	-	20:9
hardware
Processor	octa-core	octa-core
Processor make	Unisoc T7250	Qualcomm Snapdragon 870
RAM	4GB, 6GB	6GB, 8GB, 12GB
Internal storage	64GB, 128GB	128GB, 256GB
camera
Rear camera	13-megapixel	48-megapixel (f/1.79) + 8-megapixel + 5-megapixel
Front camera	5-megapixel	20-megapixel
No. of Front Cameras	1	1
No. of Rear Cameras	-	3
Rear autofocus	-	Yes
Rear flash	-	Yes
software
Operating system	Android 15	Android 11
Skin	Realme UI 6	MIUI 12
connectivity
Wi-Fi	Yes	Yes
GPS	Yes	Yes
Bluetooth	Yes, v 5.20	Yes, v 5.10
USB Type-C	Yes	Yes
Number of SIMs	2	2
Active 4G on both SIM cards	Yes	-
Wi-Fi standards supported	-	802.11 a/b/g/n/ac/ax
NFC	-	Yes
Infrared	-	Yes
sensors
Fingerprint sensor	Yes	-
Compass/ Magnetometer	Yes	Yes
Proximity sensor	Yes	Yes
Accelerometer	Yes	Yes
Gyroscope	Yes	Yes
In-Display Fingerprint Sensor	-	Yes
Ambient light sensor	-	Yes
sim 1
SIM Type	-	Nano-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes
5G	-	Yes
sim 2
SIM Type	-	Nano-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes
5G	-	Yes

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