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OPPO K14x 5G vs Vivo X21 comparison

 Compare OPPO K14x 5G
OPPO K14x 5G
Compare Vivo X21
Vivo X21
ratings
Overall NDTV RatingRead ReviewRead Review
Design Rating
Display Rating
Software Rating
Performance Rating
Battery Life Rating
Camera Rating
Value for Money Rating
key specs
Display6.75-inch6.28-inch
ProcessorMediaTek Dimensity 6300Qualcomm Snapdragon 660
Front Camera5-megapixel 12-megapixel
Rear Camera50-megapixel + 2-megapixel 12-megapixel + 5-megapixel
RAM4GB, 6GB6GB
Storage64GB, 128GB128GB
Battery Capacity6500mAh3200mAh
OSAndroid 15Android 8.1
Resolution720x1570 pixels1080x2280 pixels
general
BrandOPPOVivo
ModelK14x 5GX21
Release dateFebruary 10, 2026March 1, 2018
Launched in IndiaYesYes
Form factorTouchscreenTouchscreen
Dimensions (mm)166.60 x 78.50 x 8.60154.50 x 74.80 x 7.40
Weight (g)212.00156.20
IP ratingIP64-
Battery capacity (mAh)65003200
Removable batteryNoNo
Fast charging45W Fast ChargingProprietary
Wireless chargingNo-
ColoursIcy Blue, Prism VioletBlack, Gold
display
Refresh Rate120 Hz-
Resolution StandardHD+-
Screen size (inches)6.756.28
TouchscreenYesYes
Resolution720x1570 pixels1080x2280 pixels
Pixels per inch (PPI)256-
Aspect ratio-19:9
hardware
Processorocta-core2.2GHz octa-core
Processor makeMediaTek Dimensity 6300Qualcomm Snapdragon 660
RAM4GB, 6GB6GB
Internal storage64GB, 128GB128GB
Expandable storage-Yes
Expandable storage type-microSD
Expandable storage up to (GB)-256
camera
Rear camera50-megapixel (f/1.8) + 2-megapixel (f/2.4)12-megapixel (f/1.8, 1.4-micron) + 5-megapixel (f/2.4)
No. of Rear Cameras2-
Rear autofocusYesPhase detection autofocus
Rear flashYesLED
Front camera5-megapixel (f/2.2)12-megapixel (f/2.0)
No. of Front Cameras1-
Pop-Up CameraNo-
software
Operating systemAndroid 15Android 8.1
SkinColorOS 15FunTouch 4.0
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYes, v 5.40Yes, v 5.00
USB Type-CYes-
Number of SIMs22
Active 4G on both SIM cardsYes-
Wi-Fi standards supported-802.11 a/b/g/n/ac
NFC-No
Infrared-No
USB OTG-Yes
Micro-USB-Yes
Headphones-3.5mm
FM-No
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
Gyroscope-Yes
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