Oppo F31 5G vs Vivo X21s comparison

Compare Oppo F31 5G
Compare Vivo X21s
key specs
Display6.50-inch6.41-inch
ProcessorMediaTek Dimensity 6300Qualcomm Snapdragon 660
Front Camera16-megapixel 24.8-megapixel
Rear Camera50-megapixel + 2-megapixel 12-megapixel + 5-megapixel
RAM8GB6GB
Storage128GB, 256GB128GB
Battery Capacity7000mAh3400mAh
OSAndroid 15Android 8.1 Oreo
Resolution1080x2372 pixels1080x2340 pixels
general
BrandOPPOVivo
ModelOppo F31 5GX21s
Release dateSeptember 15, 2025November 1, 2018
AI EnabledYes-
Launched in IndiaYes-
Dimensions (mm)185.20 x 75.00 x 8.00157.91 x 75.08 x 7.90
Weight (g)185.00156.00
Battery capacity (mAh)70003400
Removable batteryNo-
Fast charging80W Fast Charging-
Wireless chargingNo-
ColoursCloud Green, Midnight Blue, Bloom RedStarry Night Black
Form factor-Touchscreen
display
Refresh Rate120 Hz-
Screen size (inches)6.506.41
TouchscreenYesYes
Resolution1080x2372 pixels1080x2340 pixels
Pixels per inch (PPI)397-
Aspect ratio-19.5:9
hardware
Processorocta-coreocta-core
Processor makeMediaTek Dimensity 6300Qualcomm Snapdragon 660
RAM8GB6GB
Internal storage128GB, 256GB128GB
Expandable storageNoYes
Expandable storage typeNomicroSD
Dedicated microSD slotNo-
Expandable storage up to (GB)-256
camera
Rear camera50-megapixel (f/1.8) + 2-megapixel (f/2.4)12-megapixel + 5-megapixel
No. of Rear Cameras2-
Rear autofocusYesYes
No. of Front Cameras1-
Front camera16-megapixel (f/2.4)24.8-megapixel
software
Operating systemAndroid 15Android 8.1 Oreo
SkinColorOS 15-
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac-
GPSYesYes
BluetoothYes, v 5.40Yes
NFCYes-
USB Type-CYes-
Number of SIMs22
Active 4G on both SIM cardsYes-
Micro-USB-Yes
Headphones-3.5mm
sim 1
SIM TypeNano-SIM-
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
5GYes-
sim 2
SIM TypeNano-SIM-
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
5GYes-
sensors
In-Display Fingerprint SensorYes-
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesYes
Face unlock-Yes
Fingerprint sensor-Yes

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