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Vivo Y31 5G vs Oppo A91 comparison

 Compare Vivo Y31 5G
Vivo Y31 5G
Compare Oppo A91
Oppo A91
key specs
Display6.68-inch6.40-inch
ProcessorQualcomm Snapdragon 4 Gen 2octa-core
Front Camera8-megapixel Unspecified
Rear Camera50-megapixel + 0.08-megapixel 48-megapixel + 8-megapixel
RAM4GB, 6GB8GB
Storage128GB128GB
Battery Capacity6,500mAh4000mAh
OSAndroid 15Android 9
Resolution1,608x720 pixels1080x2400 pixels
general
BrandVivoOppo
ModelY31 5GA91
Release dateSeptember 15, 2025December 20, 2019
Launched in IndiaYes-
Form factorTouchscreenTouchscreen
Body typePlastic-
Dimensions (mm)166.14 x 77.01 x 8.39-
Weight (g)209.00-
IP ratingIP68-
Battery capacity (mAh)6,5004000
Removable batteryNoNo
Fast charging44W Flash ChargeVOOC
Wireless chargingNo-
ColoursRose Red and Diamond GreenBlack, Blue, Red
display
Refresh Rate120 Hz-
Screen size (inches)6.686.40
TouchscreenYesYes
Resolution1,608x720 pixels1080x2400 pixels
Pixels per inch (PPI)264-
Protection type-Gorilla Glass
hardware
Processor2.2GHz MHz octa-coreocta-core
Processor makeQualcomm Snapdragon 4 Gen 2-
RAM4GB, 6GB8GB
Internal storage128GB128GB
Expandable storageYes-
Expandable storage typemicroSD-
Expandable storage up to (GB)2TB-
camera
Rear camera50-megapixel (f/f/1.8) + 0.08-megapixel (f/f/3.0)48-megapixel + 8-megapixel
No. of Rear Cameras2-
Rear flashYesYes
Front camera8-megapixel (f/f/2.0)Unspecified
No. of Front Cameras1-
Pop-Up CameraNo-
Rear autofocus-Yes
Front flash-No
software
Operating systemAndroid 15Android 9
SkinFuntouch OS 15ColorOS
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYes, v 4.20Yes
NFCNo-
USB Type-CYes-
Number of SIMs2-
Wi-Fi standards supported-802.11 a/b/g/n
Active 4G on both SIM cards-Yes
sim 1
SIM TypeNano-SIM-
GSM/CDMAGSM-
4G/ LTEYes-
5GYes-
sim 2
SIM TypeNano-SIM-
GSM/CDMAGSM-
4G/ LTEYes-
5GYes-
sensors
Fingerprint sensorYesYes
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeNo-
BarometerNo-
Temperature sensorNo-
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