Realme P4x 5G vs Vivo X21i comparison

Compare Realme P4x 5G
Compare Vivo X21i
ratings
Overall NDTV RatingRead Review-
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
key specs
Display6.72-inch6.28-inch
Front Camera8-megapixel24-megapixel
Rear Camera50-megapixel + 2-megapixel12-megapixel
RAM6GB, 8GB4GB
Storage128GB, 256GB64GB
Battery Capacity7000mAh3245mAh
OSAndroidAndroid 8.1
Processor-MediaTek Helio P60
Resolution-1080x2280 pixels
general
BrandRealmeVivo
ModelP4x 5GX21i
Release dateDecember 4, 2025May 1, 2018
Launched in IndiaYes-
Thickness8.39-
Weight (g)208.00159.00
IP ratingIP64-
Battery capacity (mAh)70003245
Fast charging45W Fast Charging-
Wireless chargingNo-
ColoursMatte Silver, Elegant Pink, and Lake GreenAurora White, Polar Night, Ruby Red
Form factor-Touchscreen
Dimensions (mm)-154.37 x 74.98 x 6.99
display
Refresh Rate144 Hz-
Resolution StandardHD+-
Screen size (inches)6.726.28
TouchscreenYesYes
Resolution-1080x2280 pixels
hardware
Processor makeMediaTek Dimensity 7400 UltraMediaTek Helio P60 (MT6771)
RAM6GB, 8GB4GB
Internal storage128GB, 256GB64GB
Processor-2GHz octa-core
Expandable storage-Yes
Expandable storage type-microSD
Expandable storage up to (GB)-256
camera
Rear camera50-megapixel + 2-megapixel12-megapixel
No. of Rear Cameras2-
No. of Front Cameras1-
Front camera8-megapixel24-megapixel
Rear flash-Dual LED
software
Operating systemAndroidAndroid 8.1
SkinRealme UI 6.0Funtouch OS 4
connectivity
Wi-FiYesYes
BluetoothYesYes
USB Type-CYes-
Number of SIMs22
Active 4G on both SIM cardsYes-
Wi-Fi standards supported-802.11 b/g/n
GPS-Yes
USB OTG-Yes
FM-Yes
sim 1
5GYes-
SIM Type-Nano-SIM
GSM/CDMA-GSM
3G-Yes
4G/ LTE-Yes
sim 2
5GYes-
SIM Type-Nano-SIM
GSM/CDMA-GSM
3G-Yes
4G/ LTE-Yes
sensors
Proximity sensor-Yes
Accelerometer-Yes
Ambient light sensor-Yes
Gyroscope-Yes

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