Vivo Y31 5G vs Oppo A77 4G comparison

Show Only Differences Highlight Differences	Vivo Y31 5G	Oppo A77 4G
key specs
Display	6.68-inch	6.56-inch
Processor	Qualcomm Snapdragon 4 Gen 2	-
Front Camera	8-megapixel	8-megapixel
Rear Camera	50-megapixel + 0.08-megapixel	50-megapixel
RAM	4GB, 6GB	4GB
Storage	128GB	64GB
Battery Capacity	6,500mAh	5000mAh
OS	Android 15	Android 12
Resolution	1,608x720 pixels	-
general
Brand	Vivo	Oppo
Model	Y31 5G	A77 4G
Release date	September 15, 2025	August 1, 2022
Launched in India	Yes	Yes
Form factor	Touchscreen	-
Body type	Plastic	-
Dimensions (mm)	166.14 x 77.01 x 8.39	163.74 x 75.03 x 7.99
Weight (g)	209.00	187.00
IP rating	IP68	-
Battery capacity (mAh)	6,500	5000
Removable battery	No	-
Fast charging	44W Flash Charge	Super VOOC
Wireless charging	No	-
Colours	Rose Red and Diamond Green	Sky Blue, Sunset Orange
display
Refresh Rate	120 Hz	-
Screen size (inches)	6.68	6.56
Touchscreen	Yes	Yes
Resolution	1,608x720 pixels	-
Pixels per inch (PPI)	264	269
Resolution Standard	-	HD+
hardware
Processor	2.2GHz MHz octa-core	-
Processor make	Qualcomm Snapdragon 4 Gen 2	-
RAM	4GB, 6GB	4GB
Internal storage	128GB	64GB
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)	50-megapixel
No. of Rear Cameras	2	2
Rear flash	Yes	-
Front camera	8-megapixel (f/f/2.0)	8-megapixel
No. of Front Cameras	1	-
Pop-Up Camera	No	-
software
Operating system	Android 15	Android 12
Skin	Funtouch OS 15	-
connectivity
Wi-Fi	Yes	Yes
GPS	Yes	-
Bluetooth	Yes, v 4.20	Yes
NFC	No	-
USB Type-C	Yes	-
Number of SIMs	2	-
sim 1
SIM Type	Nano-SIM	-
GSM/CDMA	GSM	-
4G/ LTE	Yes	-
5G	Yes	-
sim 2
SIM Type	Nano-SIM	-
GSM/CDMA	GSM	-
4G/ LTE	Yes	-
5G	Yes	-
sensors
Fingerprint sensor	Yes	Yes
Compass/ Magnetometer	Yes	-
Proximity sensor	Yes	-
Accelerometer	Yes	-
Ambient light sensor	Yes	-
Gyroscope	No	-
Barometer	No	-
Temperature sensor	No	-

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