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Vivo Y31 5G vs Oppo K9 Pro comparison

 Compare Vivo Y31 5G
Vivo Y31 5G
Compare Oppo K9 Pro
Oppo K9 Pro
key specs
Display6.68-inch6.43-inch
ProcessorQualcomm Snapdragon 4 Gen 2-
Front Camera8-megapixel 16-megapixel
Rear Camera50-megapixel + 0.08-megapixel 64-megapixel + 8-megapixel + 2-megapixel
RAM4GB, 6GB8GB, 12GB
Storage128GB128GB, 256GB
Battery Capacity6,500mAh4500mAh
OSAndroid 15Android 11
Resolution1,608x720 pixels1080x2400 pixels
general
BrandVivoOppo
ModelY31 5GK9 Pro
Release dateSeptember 15, 2025September 27, 2021
Launched in IndiaYesNo
Form factorTouchscreenTouchscreen
Body typePlastic-
Dimensions (mm)166.14 x 77.01 x 8.39158.70 x 73.50 x 8.50
Weight (g)209.00180.00
IP ratingIP68-
Battery capacity (mAh)6,5004500
Removable batteryNo-
Fast charging44W Flash Charge-
Wireless chargingNo-
ColoursRose Red and Diamond GreenGlacier Overture, Obsidian Warrior
display
Refresh Rate120 Hz120 Hz
Screen size (inches)6.686.43
TouchscreenYesYes
Resolution1,608x720 pixels1080x2400 pixels
Pixels per inch (PPI)264409
hardware
Processor2.2GHz MHz octa-core-
Processor makeQualcomm Snapdragon 4 Gen 2MediaTek Dimensity 1200
RAM4GB, 6GB8GB, 12GB
Internal storage128GB128GB, 256GB
Expandable storageYesNo
Expandable storage typemicroSD-
Expandable storage up to (GB)2TB-
camera
Rear camera50-megapixel (f/f/1.8) + 0.08-megapixel (f/f/3.0)64-megapixel (f/1.7) + 8-megapixel (f/2.2) + 2-megapixel (f/2.4)
No. of Rear Cameras23
Rear flashYes-
Front camera8-megapixel (f/f/2.0)16-megapixel (f/2.4)
No. of Front Cameras11
Pop-Up CameraNo-
software
Operating systemAndroid 15Android 11
SkinFuntouch OS 15ColorOS 11.3
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYes, v 4.20Yes, v 5.20
NFCNoYes
USB Type-CYesYes
Number of SIMs22
Wi-Fi standards supported-802.11 a/b/g/n/ac
Headphones-3.5mm
sim 1
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSM-
4G/ LTEYes-
5GYes-
sim 2
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSM-
4G/ LTEYes-
5GYes-
sensors
Fingerprint sensorYes-
Compass/ MagnetometerYes-
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeNoYes
BarometerNo-
Temperature sensorNo-
In-Display Fingerprint Sensor-Yes
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