Oppo K9 5G vs Oppo A31 comparison

Compare Oppo K9 5G
Compare Oppo A31
key specs
Display6.43-inch4.50-inch
ProcessorQualcomm Snapdragon 768GQualcomm Snapdragon 410
Front Camera32-megapixel 5-megapixel
Rear Camera64-megapixel + 8-megapixel + 2-megapixel 8-megapixel
RAM8GB1GB
Storage128GB8GB
Battery Capacity4300mAh2000mAh
OSAndroid 11Android 4.4
Resolution1080x2400 pixels480x854 pixels
general
BrandOppoOppo
ModelK9 5GA31
Release dateMay 6, 2021April 1, 2015
Launched in IndiaNo-
Form factorTouchscreenTouchscreen
Dimensions (mm)159.10 x 73.40 x 7.90131.90 x 65.54 x 8.03
Weight (g)172.00135.00
Battery capacity (mAh)43002000
Fast chargingProprietary-
ColoursBlack, Gradient-
Removable battery-No
display
Screen size (inches)6.434.50
TouchscreenYesYes
Resolution1080x2400 pixels480x854 pixels
Aspect ratio20:9-
Pixels per inch (PPI)410-
hardware
Processorocta-core1.4GHz quad-core
Processor makeQualcomm Snapdragon 768GQualcomm Snapdragon 410
RAM8GB1GB
Internal storage128GB8GB
Expandable storage-Yes
Expandable storage type-microSD
Expandable storage up to (GB)-128
camera
Rear camera64-megapixel (f/1.7) + 8-megapixel (f/2.2) + 2-megapixel (f/2.4)8-megapixel
No. of Rear Cameras3-
Rear autofocusYes-
Rear flashYesLED
Front camera32-megapixel (f/2.4)5-megapixel
No. of Front Cameras1-
Pop-Up CameraNo-
software
Operating systemAndroid 11Android 4.4
SkinColorOS 11.1ColorOS 2.0.1
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac-
GPSYesYes
BluetoothYesYes
USB Type-CYes-
Micro-USBNo-
LightningNo-
Headphones3.5mmYes
Number of SIMs22
NFC-No
Infrared-No
USB OTG-No
FM-No
Wi-Fi Direct-No
Mobile High-Definition Link (MHL)-No
sim 1
SIM TypeNano-SIMMicro-SIM
3GYesYes
4G/ LTEYesYes
5GYes-
GSM/CDMA-GSM
sim 2
SIM TypeNano-SIMNano-SIM
3GYesNo
4G/ LTEYesYes
5GYes-
GSM/CDMA-GSM
sensors
In-Display Fingerprint SensorYes-
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesNo
Compass/ Magnetometer-No
Barometer-No
Temperature sensor-No

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