Poco C81x vs Oppo A31 (2020) comparison

Compare Poco C81x
Compare Oppo A31 (2020)
key specs
Display6.88-inch6.50-inch
ProcessorUnisoc T7250MediaTek Helio P35
Front Camera8-megapixel8-megapixel
Rear Camera13-megapixel12-megapixel + 2-megapixel + 2-megapixel
RAM3GB4GB
Storage64GB64GB
Battery Capacity5200mAh4230mAh
OSAndroid 15Android 9
Resolution720x1640 pixels720x1600 pixels
general
BrandPocoOppo
ModelC81xA31 (2020)
Release dateApril 23, 2026February 14, 2020
AI EnabledYes-
Launched in IndiaYesYes
Form factorTouchscreenTouchscreen
Dimensions (mm)171.79 x 77.80 x 8.26163.90 x 75.50 x 8.30
Weight (g)193.00180.00
IP ratingIP52-
Battery capacity (mAh)52004230
Removable batteryNoNo
Fast charging15W Fast Charging-
Wireless chargingNo-
ColoursElite Black, Ice BlueMystery Black, Fantasy White
Body type-Plastic
display
Refresh Rate120 Hz-
Resolution StandardHD+-
Screen size (inches)6.886.50
TouchscreenYesYes
Resolution720x1640 pixels720x1600 pixels
Aspect ratio-20:9
hardware
Processor1.8GHz MHz octa-core2.3GHz octa-core
Processor makeUnisoc T7250MediaTek Helio P35 (MT6765)
RAM3GB4GB
Internal storage64GB64GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)2048256
Dedicated microSD slot-Yes
camera
Rear camera13-megapixel12-megapixel (f/1.8) + 2-megapixel (f/2.4, 1.75-micron) + 2-megapixel (f/2.4, 1.75-micron)
No. of Rear Cameras1-
Rear autofocusYesYes
Rear flashYesYes
Front camera8-megapixel8-megapixel (f/2.0)
No. of Front Cameras1-
Pop-Up CameraNoNo
Front autofocus-No
Front flash-No
software
Operating systemAndroid 15Android 9
Skin-ColorOS 6.1.2
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYes, v 5.20Yes, v 5.00
USB Type-CYes-
Headphones3.5mm3.5mm
Number of SIMs22
Active 4G on both SIM cardsYes-
Wi-Fi standards supported-802.11 a/b/g/n/ac
NFC-No
Micro-USB-Yes
FM-Yes
sim 1
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSM + CDMAGSM
4G/ LTEYesYes
5GYes-
3G-Yes
sim 2
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSM + CDMAGSM
4G/ LTEYesYes
5GYes-
3G-Yes
sensors
Fingerprint sensorYesYes
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
Face unlock-Yes

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