Oppo A31 (2020) vs Micromax Ninja A91 comparison

Compare Oppo A31 (2020)
Compare Micromax Ninja A91
key specs
Display6.50-inch4.50-inch
ProcessorMediaTek Helio P35 1GHz dual-core
Front Camera8-megapixel 0.3-megapixel
Rear Camera12-megapixel + 2-megapixel + 2-megapixel 5-megapixel
RAM4GB512MB
Storage64GB2GB
Battery Capacity4230mAh1800mAh
OSAndroid 9Android 4
Resolution720x1600 pixels480x854 pixels
general
BrandOppoMicromax
ModelA31 (2020)Ninja A91
Release dateFebruary 14, 2020April 1, 2013
Launched in IndiaYes-
Form factorTouchscreen-
Body typePlastic-
Dimensions (mm)163.90 x 75.50 x 8.30130.00 x 66.00 x 10.00
Weight (g)180.00149.10
Battery capacity (mAh)42301800
Removable batteryNoYes
ColoursMystery Black, Fantasy White-
display
Screen size (inches)6.504.50
TouchscreenYesYes
Resolution720x1600 pixels480x854 pixels
Aspect ratio20:9-
hardware
Processor2.3GHz octa-core1GHz dual-core
Processor makeMediaTek Helio P35 (MT6765)-
RAM4GB512MB
Internal storage64GB2GB
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)5-megapixel
Rear autofocusYes-
Rear flashYesNo
Front camera8-megapixel (f/2.0)0.3-megapixel
Pop-Up CameraNo-
Front autofocusNo-
Front flashNo-
software
Operating systemAndroid 9Android 4
SkinColorOS 6.1.2-
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac-
GPSYesYes
BluetoothYes, v 5.00Yes
NFCNoNo
Micro-USBYes-
Headphones3.5mm-
FMYesNo
Number of SIMs22
Infrared-No
USB OTG-No
Wi-Fi Direct-No
Mobile High-Definition Link (MHL)-No
sim 1
SIM TypeNano-SIMRegular
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesNo
sim 2
SIM TypeNano-SIMRegular
GSM/CDMAGSMGSM
3GYesNo
4G/ LTEYesNo
sensors
Face unlockYes-
Fingerprint sensorYes-
Compass/ MagnetometerYesNo
Proximity sensorYesNo
AccelerometerYesNo
Ambient light sensorYesNo
Gyroscope-No
Barometer-No
Temperature sensor-No
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