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Oppo K9 5G vs Oppo A31
Oppo K9 5G
vs
Oppo A31
comparison
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Highlight Differences
Oppo K9 5G
Oppo A31
key specs
Display
6.43-inch
4.50-inch
Processor
Qualcomm Snapdragon 768G
Qualcomm Snapdragon 410
Front Camera
32-megapixel
5-megapixel
Rear Camera
64-megapixel + 8-megapixel + 2-megapixel
8-megapixel
RAM
8GB
1GB
Storage
128GB, 256GB
8GB
Battery Capacity
4300mAh
2000mAh
OS
Android 11
Android 4.4
Resolution
1080x2400 pixels
480x854 pixels
general
Brand
Oppo
Oppo
Model
K9 5G
A31
Release date
May 6, 2021
April 1, 2015
Launched in India
No
-
Form factor
Touchscreen
Touchscreen
Dimensions (mm)
159.10 x 73.40 x 7.90
131.90 x 65.54 x 8.03
Weight (g)
172.00
135.00
Battery capacity (mAh)
4300
2000
Fast charging
Proprietary
-
Colours
Black, Gradient
-
Removable battery
-
No
display
Screen size (inches)
6.43
4.50
Touchscreen
Yes
Yes
Resolution
1080x2400 pixels
480x854 pixels
Aspect ratio
20:9
-
Pixels per inch (PPI)
410
-
hardware
Processor
octa-core
1.4GHz quad-core
Processor make
Qualcomm Snapdragon 768G
Qualcomm Snapdragon 410
RAM
8GB
1GB
Internal storage
128GB, 256GB
8GB
Expandable storage
-
Yes
Expandable storage type
-
microSD
Expandable storage up to (GB)
-
128
camera
Rear camera
64-megapixel (f/1.7) + 8-megapixel (f/2.2) + 2-megapixel (f/2.4)
8-megapixel
No. of Rear Cameras
3
-
Rear autofocus
Yes
-
Rear flash
Yes
LED
Front camera
32-megapixel (f/2.4)
5-megapixel
No. of Front Cameras
1
-
Pop-Up Camera
No
-
software
Operating system
Android 11
Android 4.4
Skin
ColorOS 11.1
ColorOS 2.0.1
connectivity
Wi-Fi
Yes
Yes
Wi-Fi standards supported
802.11 a/b/g/n/ac
-
GPS
Yes
Yes
Bluetooth
Yes
Yes
USB Type-C
Yes
-
Micro-USB
No
-
Lightning
No
-
Headphones
3.5mm
Yes
Number of SIMs
2
2
NFC
-
No
Infrared
-
No
USB OTG
-
No
FM
-
No
Wi-Fi Direct
-
No
Mobile High-Definition Link (MHL)
-
No
sim 1
SIM Type
Nano-SIM
Micro-SIM
3G
Yes
Yes
4G/ LTE
Yes
Yes
5G
Yes
-
GSM/CDMA
-
GSM
sim 2
SIM Type
Nano-SIM
Nano-SIM
3G
Yes
No
4G/ LTE
Yes
Yes
5G
Yes
-
GSM/CDMA
-
GSM
sensors
In-Display Fingerprint Sensor
Yes
-
Proximity sensor
Yes
Yes
Accelerometer
Yes
Yes
Ambient light sensor
Yes
Yes
Gyroscope
Yes
No
Compass/ Magnetometer
-
No
Barometer
-
No
Temperature sensor
-
No
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