Vivo Y31 5G vs Karbonn K66 comparison

Compare Vivo Y31 5G
Compare Karbonn K66
key specs
Display6.68-inch2.40-inch
ProcessorQualcomm Snapdragon 4 Gen 2one-core
Front Camera8-megapixel No
Rear Camera50-megapixel + 0.08-megapixel 0.3-megapixel
RAM4GB, 6GB-
Storage128GB-
Battery Capacity6,500mAh1800mAh
OSAndroid 15Proprietary
Resolution1,608x720 pixels240x320 pixels
general
BrandVivoKarbonn
ModelY31 5GK66
Release dateSeptember 15, 2025May 1, 2012
Launched in IndiaYes-
Form factorTouchscreenFlip
Body typePlastic-
Dimensions (mm)166.14 x 77.01 x 8.39103.00 x 50.00 x 16.55
Weight (g)209.0090.00
IP ratingIP68-
Battery capacity (mAh)6,5001800
Removable batteryNoYes
Fast charging44W Flash Charge-
Wireless chargingNo-
ColoursRose Red and Diamond GreenWhite-Black
display
Refresh Rate120 Hz-
Screen size (inches)6.682.40
TouchscreenYesNo
Resolution1,608x720 pixels240x320 pixels
Pixels per inch (PPI)264-
hardware
Processor2.2GHz MHz octa-coreone-core
Processor makeQualcomm Snapdragon 4 Gen 2-
RAM4GB, 6GB-
Internal storage128GB-
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)2TB8
camera
Rear camera50-megapixel (f/f/1.8) + 0.08-megapixel (f/f/3.0)0.3-megapixel
No. of Rear Cameras2-
Rear flashYesNo
Front camera8-megapixel (f/f/2.0)No
No. of Front Cameras1-
Pop-Up CameraNo-
software
Operating systemAndroid 15Proprietary
SkinFuntouch OS 15-
connectivity
Wi-FiYesNo
GPSYesNo
BluetoothYes, v 4.20Yes
NFCNoNo
USB Type-CYes-
Number of SIMs22
Infrared-No
USB OTG-No
FM-Yes
Wi-Fi Direct-No
Mobile High-Definition Link (MHL)-No
sim 1
SIM TypeNano-SIMRegular
GSM/CDMAGSMGSM
4G/ LTEYesNo
5GYes-
3G-No
sim 2
SIM TypeNano-SIMRegular
GSM/CDMAGSMGSM
4G/ LTEYesNo
5GYes-
3G-No
sensors
Fingerprint sensorYes-
Compass/ MagnetometerYesNo
Proximity sensorYesNo
AccelerometerYesNo
Ambient light sensorYesNo
GyroscopeNoNo
BarometerNoNo
Temperature sensorNoNo

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