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Oppo A31 (2020) vs Karbonn Alfa 18 comparison

 Compare Oppo A31 (2020)
Oppo A31 (2020)
Compare Karbonn Alfa 18
Karbonn Alfa 18
key specs
Display6.50-inch4.00-inch
ProcessorMediaTek Helio P35 1.2GHz quad-core
Front Camera8-megapixel 0.3-megapixel
Rear Camera12-megapixel + 2-megapixel + 2-megapixel 2-megapixel
RAM4GB512MB
Storage64GB4GB
Battery Capacity4230mAh1400mAh
OSAndroid 9Android 7.0
Resolution720x1600 pixels480x800 pixels
general
BrandOppoKarbonn
ModelA31 (2020)Alfa 18
Release dateFebruary 14, 2020-
Launched in IndiaYes-
Form factorTouchscreenTouchscreen
Body typePlastic-
Dimensions (mm)163.90 x 75.50 x 8.30124.50 x 64.50 x 10.60
Weight (g)180.00112.00
Battery capacity (mAh)42301400
Removable batteryNoNo
ColoursMystery Black, Fantasy WhiteChampagne, Grey - Gun Metal, Black - Champagne
display
Screen size (inches)6.504.00
TouchscreenYesYes
Resolution720x1600 pixels480x800 pixels
Aspect ratio20:9-
hardware
Processor2.3GHz octa-core1.2GHz quad-core
Processor makeMediaTek Helio P35 (MT6765)-
RAM4GB512MB
Internal storage64GB4GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)25632
Dedicated microSD slotYes-
camera
Rear camera12-megapixel (f/1.8) + 2-megapixel (f/2.4, 1.75-micron) + 2-megapixel (f/2.4, 1.75-micron)2-megapixel
Rear autofocusYes-
Rear flashYesYes
Front camera8-megapixel (f/2.0)0.3-megapixel
Pop-Up CameraNo-
Front autofocusNo-
Front flashNo-
software
Operating systemAndroid 9Android 7.0
SkinColorOS 6.1.2-
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac802.11 b/g/n
GPSYesYes
BluetoothYes, v 5.00Yes
NFCNoNo
Micro-USBYes-
Headphones3.5mm3.5mm
FMYesYes
Number of SIMs22
Infrared-No
USB OTG-Yes
Wi-Fi Direct-No
Mobile High-Definition Link (MHL)-No
sim 1
SIM TypeNano-SIMMicro-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sim 2
SIM TypeNano-SIMMicro-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sensors
Face unlockYes-
Fingerprint sensorYes-
Compass/ MagnetometerYesNo
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesNo
Gyroscope-No
Barometer-No
Temperature sensor-No

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