Vivo Y31 5G vs Redmi K40 Pro comparison

Show Only Differences Highlight Differences	Vivo Y31 5G	Redmi K40 Pro
key specs
Display	6.68-inch	6.67-inch
Processor	Qualcomm Snapdragon 4 Gen 2	Qualcomm Snapdragon 888
Front Camera	8-megapixel	20-megapixel
Rear Camera	50-megapixel + 0.08-megapixel	64-megapixel + 8-megapixel + 5-megapixel
RAM	4GB, 6GB	6GB, 8GB, 12GB
Storage	128GB	128GB, 256GB
Battery Capacity	6,500mAh	4520mAh
OS	Android 15	Android 11
Resolution	1,608x720 pixels	1080x2400 pixels
general
Brand	Vivo	Xiaomi
Model	Y31 5G	Redmi K40 Pro
Release date	September 15, 2025	February 25, 2021
Launched in India	Yes	No
Form factor	Touchscreen	Touchscreen
Body type	Plastic	-
Dimensions (mm)	166.14 x 77.01 x 8.39	163.70 x 76.40 x 7.80
Weight (g)	209.00	196.00
IP rating	IP68	-
Battery capacity (mAh)	6,500	4520
Removable battery	No	-
Fast charging	44W Flash Charge	Proprietary
Wireless charging	No	-
Colours	Rose Red and Diamond Green	-
display
Refresh Rate	120 Hz	-
Screen size (inches)	6.68	6.67
Touchscreen	Yes	Yes
Resolution	1,608x720 pixels	1080x2400 pixels
Pixels per inch (PPI)	264	-
Aspect ratio	-	20:9
hardware
Processor	2.2GHz MHz octa-core	octa-core
Processor make	Qualcomm Snapdragon 4 Gen 2	Qualcomm Snapdragon 888
RAM	4GB, 6GB	6GB, 8GB, 12GB
Internal storage	128GB	128GB, 256GB
Expandable storage	Yes	-
Expandable storage type	microSD	-
Expandable storage up to (GB)	2TB	-
camera
Rear camera	50-megapixel (f/f/1.8) + 0.08-megapixel (f/f/3.0)	64-megapixel + 8-megapixel + 5-megapixel
No. of Rear Cameras	2	3
Rear flash	Yes	Yes
Front camera	8-megapixel (f/f/2.0)	20-megapixel
No. of Front Cameras	1	1
Pop-Up Camera	No	-
Rear autofocus	-	Yes
software
Operating system	Android 15	Android 11
Skin	Funtouch OS 15	MIUI 12
connectivity
Wi-Fi	Yes	Yes
GPS	Yes	Yes
Bluetooth	Yes, v 4.20	Yes, v 5.10
NFC	No	Yes
USB Type-C	Yes	Yes
Number of SIMs	2	2
Wi-Fi standards supported	-	802.11 a/b/g/n/ac/ax
Infrared	-	Yes
sim 1
SIM Type	Nano-SIM	Nano-SIM
GSM/CDMA	GSM	GSM
4G/ LTE	Yes	Yes
5G	Yes	Yes
3G	-	Yes
sim 2
SIM Type	Nano-SIM	Nano-SIM
GSM/CDMA	GSM	GSM
4G/ LTE	Yes	Yes
5G	Yes	Yes
3G	-	Yes
sensors
Fingerprint sensor	Yes	-
Compass/ Magnetometer	Yes	Yes
Proximity sensor	Yes	Yes
Accelerometer	Yes	Yes
Ambient light sensor	Yes	Yes
Gyroscope	No	Yes
Barometer	No	-
Temperature sensor	No	-
In-Display Fingerprint Sensor	-	Yes

Popular Mobile Brands