Vivo Y31 5G vs Oppo A55s 5G comparison

Show Only Differences Highlight Differences	Vivo Y31 5G	Oppo A55s 5G
key specs
Display	6.68-inch	6.50-inch
Processor	Qualcomm Snapdragon 4 Gen 2	Qualcomm Snapdragon 480
Front Camera	8-megapixel	8-megapixel
Rear Camera	50-megapixel + 0.08-megapixel	13-Ultrapixel + 2-megapixel
RAM	4GB, 6GB	6GB, 8GB
Storage	128GB	128GB
Battery Capacity	6,500mAh	4000mAh
OS	Android 15	Android 11
Resolution	1,608x720 pixels	1080x2400 pixels
general
Brand	Vivo	Oppo
Model	Y31 5G	A55s 5G
Release date	September 15, 2025	November 19, 2021
Launched in India	Yes	No
Form factor	Touchscreen	Touchscreen
Body type	Plastic	-
Dimensions (mm)	166.14 x 77.01 x 8.39	162.10 x 74.70 x 8.20
Weight (g)	209.00	178.00
IP rating	IP68	-
Battery capacity (mAh)	6,500	4000
Removable battery	No	-
Fast charging	44W Flash Charge	-
Wireless charging	No	-
Colours	Rose Red and Diamond Green	Black, Green
display
Refresh Rate	120 Hz	90 Hz
Screen size (inches)	6.68	6.50
Touchscreen	Yes	Yes
Resolution	1,608x720 pixels	1080x2400 pixels
Pixels per inch (PPI)	264	405
hardware
Processor	2.2GHz MHz octa-core	1.8GHz octa-core (2x2.04GHz + 6x1.8GHz)
Processor make	Qualcomm Snapdragon 4 Gen 2	Qualcomm Snapdragon 480
RAM	4GB, 6GB	6GB, 8GB
Internal storage	128GB	128GB
Expandable storage	Yes	Yes
Expandable storage type	microSD	microSD
Expandable storage up to (GB)	2TB	-
camera
Rear camera	50-megapixel (f/f/1.8) + 0.08-megapixel (f/f/3.0)	13-Ultrapixel (f/2.2) + 2-megapixel (f/2.4)
No. of Rear Cameras	2	2
Rear flash	Yes	-
Front camera	8-megapixel (f/f/2.0)	8-megapixel (f/2.0)
No. of Front Cameras	1	1
Pop-Up Camera	No	-
software
Operating system	Android 15	Android 11
Skin	Funtouch OS 15	ColorOS 11
connectivity
Wi-Fi	Yes	Yes
GPS	Yes	Yes
Bluetooth	Yes, v 4.20	Yes, v 5.00
NFC	No	-
USB Type-C	Yes	Yes
Number of SIMs	2	2
Wi-Fi standards supported	-	802.11 a/b/g/n/ac
Headphones	-	3.5mm
sim 1
SIM Type	Nano-SIM	Nano-SIM
GSM/CDMA	GSM	GSM
4G/ LTE	Yes	Yes
5G	Yes	-
3G	-	Yes
sim 2
SIM Type	Nano-SIM	Nano-SIM
GSM/CDMA	GSM	GSM
4G/ LTE	Yes	Yes
5G	Yes	-
3G	-	Yes
sensors
Fingerprint sensor	Yes	-
Compass/ Magnetometer	Yes	-
Proximity sensor	Yes	Yes
Accelerometer	Yes	Yes
Ambient light sensor	Yes	-
Gyroscope	No	-
Barometer	No	-
Temperature sensor	No	-
Face unlock	-	Yes

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