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Oppo F21 Pro vs Oppo K9x comparison

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key specs
Display
6.43-inch6.50-inch
Processor
Qualcomm Snapdragon 680-
Front Camera
32-megapixel 16-megapixel
Rear Camera
64-megapixel + 2-megapixel + 2-megapixel 64-megapixel + 2-megapixel + 2-megapixel
RAM
8GB6GB, 8GB
Storage
128GB128GB, 256GB
Battery Capacity
4500mAh5000mAh
OS
Android 12Android 11
Resolution
1080x2400 pixels1080x2400 pixels
general
Brand
OppoOppo
Model
F21 ProK9x
Release date
April 12, 2022December 23, 2021
Launched in India
YesNo
Form factor
TouchscreenTouchscreen
Dimensions (mm)
159.90 x 73.20 x 7.49-
Weight (g)
175.00-
Battery capacity (mAh)
45005000
Colours
Cosmic Black, Sunset OrangeBlack, Silver Purple
Fast charging
-VOOC
display
Refresh Rate
90 Hz90 Hz
Resolution Standard
FHD-
Screen size (inches)
6.436.50
Resolution
1080x2400 pixels1080x2400 pixels
Protection type
Gorilla Glass-
Aspect ratio
20:9-
Pixels per inch (PPI)
409-
Touchscreen
-Yes
hardware
Processor
octa-core-
Processor make
Qualcomm Snapdragon 680MediaTek Dimensity 810
RAM
8GB6GB, 8GB
Internal storage
128GB128GB, 256GB
camera
Rear camera
64-megapixel (f/1.7) + 2-megapixel (f/3.3) + 2-megapixel (f/2.4)64-megapixel + 2-megapixel + 2-megapixel
No. of Rear Cameras
33
Rear autofocus
Yes-
Rear flash
Yes-
Front camera
32-megapixel (f/2.4)16-megapixel
No. of Front Cameras
11
Pop-Up Camera
-No
software
Operating system
Android 12Android 11
Skin
ColorOS 12.1ColorOS
connectivity
Wi-Fi
YesYes
Wi-Fi standards supported
802.11 a/b/g/n/ac-
GPS
YesYes
Bluetooth
Yes, v 5.10Yes
USB Type-C
Yes-
Headphones
3.5mm-
Number of SIMs
2-
NFC
-No
sim 1
SIM Type
Nano-SIM-
GSM/CDMA
GSM-
3G
Yes-
4G/ LTE
Yes-
sim 2
SIM Type
Nano-SIM-
GSM/CDMA
GSM-
3G
Yes-
4G/ LTE
Yes-
sensors
In-Display Fingerprint Sensor
Yes-
Compass/ Magnetometer
Yes-
Proximity sensor
YesYes
Accelerometer
YesYes
Ambient light sensor
YesYes
Gyroscope
Yes-
Fingerprint sensor
-Yes

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