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Vivo Y31 5G vs Oppo A78 comparison

 Compare Vivo Y31 5G
Vivo Y31 5G
Compare Oppo A78
Oppo A78
key specs
Display6.68-inch6.43-inch
ProcessorQualcomm Snapdragon 4 Gen 2Qualcomm Snapdragon 680
Front Camera8-megapixel 8-megapixel
Rear Camera50-megapixel + 0.08-megapixel 50-megapixel + 2-megapixel
RAM4GB, 6GB8GB
Storage128GB128MB
Battery Capacity6,500mAh5000mAh
OSAndroid 15Android
Resolution1,608x720 pixels1080x2400 pixels
general
BrandVivoOppo
ModelY31 5GA78
Release dateSeptember 15, 2025August 12, 2023
Launched in IndiaYesYes
Form factorTouchscreenTouchscreen
Body typePlastic-
Dimensions (mm)166.14 x 77.01 x 8.39160.00 x 73.20 x 7.90
Weight (g)209.00180.00
IP ratingIP68-
Battery capacity (mAh)6,5005000
Removable batteryNoNo
Fast charging44W Flash ChargeSuper VOOC
Wireless chargingNoNo
ColoursRose Red and Diamond GreenAqua Green, Mist Black
display
Refresh Rate120 Hz90 Hz
Screen size (inches)6.686.43
TouchscreenYesYes
Resolution1,608x720 pixels1080x2400 pixels
Pixels per inch (PPI)264409
Resolution Standard-FHD
hardware
Processor2.2GHz MHz octa-coreocta-core
Processor makeQualcomm Snapdragon 4 Gen 2Qualcomm Snapdragon 680
RAM4GB, 6GB8GB
Internal storage128GB128MB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)2TB-
camera
Rear camera50-megapixel (f/f/1.8) + 0.08-megapixel (f/f/3.0)50-megapixel (f/f/1.8) + 2-megapixel (f/2.4)
No. of Rear Cameras22
Rear flashYes-
Front camera8-megapixel (f/f/2.0)8-megapixel (f/2.0)
No. of Front Cameras11
Pop-Up CameraNo-
software
Operating systemAndroid 15Android
SkinFuntouch OS 15ColorOS 13.1
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYes, v 4.20Yes, v 5.00
NFCNoYes
USB Type-CYesYes
Number of SIMs22
Wi-Fi standards supported-802.11 a/b/g/n
USB OTG-Yes
Active 4G on both SIM cards-Yes
sim 1
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
4G/ LTEYesYes
5GYesNo
3G-Yes
sim 2
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
4G/ LTEYesYes
5GYesNo
3G-Yes
sensors
Fingerprint sensorYes-
Compass/ MagnetometerYes-
Proximity sensorYes-
AccelerometerYes-
Ambient light sensorYes-
GyroscopeNo-
BarometerNo-
Temperature sensorNo-
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