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Realme C100x vs Vivo V21 5G comparison

 Compare Realme C100x
Realme C100x
Compare Vivo V21 5G
Vivo V21 5G
key specs
Display6.80-inch6.44-inch
Front Camera5-megapixel44-megapixel
Rear Camera50-megapixel64-megapixel + 8-megapixel + 2-megapixel
RAM4GB8GB
Storage64GB128GB, 256GB
Battery Capacity8000mAh4000mAh
OSAndroid 16Android 11
Resolution720x1570 pixels1080x2404 pixels
Processor-MediaTek Dimensity 800U
general
BrandRealmeVivo
ModelC100xV21 5G
Release dateJuly 16, 2026April 27, 2021
AI EnabledYes-
Launched in IndiaYesYes
Dimensions (mm)166.00 x 78.20 x 8.80159.68 x 73.90 x 7.29
Weight (g)219.00176.00
IP ratingIP64-
Battery capacity (mAh)80004000
Fast charging45W Fast ChargingProprietary
ColoursDeepblue Tides, Golden CoastArctic White, Dusk Blue, Sunset Dazzle
Form factor-Touchscreen
display
Refresh Rate120 Hz-
Resolution StandardHD+-
Screen size (inches)6.806.44
TouchscreenYesYes
Resolution720x1570 pixels1080x2404 pixels
Pixels per inch (PPI)254-
Aspect ratio-20:9
hardware
Processor makeUnisoc T7250MediaTek Dimensity 800U
RAM4GB8GB
Internal storage64GB128GB, 256GB
Processor-octa-core
Expandable storage-Yes
Expandable storage type-microSD
Expandable storage up to (GB)-1000
Dedicated microSD slot-Yes
camera
Rear camera50-megapixel64-megapixel (f/1.79) + 8-megapixel (f/2.2) + 2-megapixel (f/2.4)
No. of Rear Cameras13
Front camera5-megapixel44-megapixel (f/2.0)
No. of Front Cameras11
Rear autofocus-Yes
Rear flash-Yes
Front flash-Yes
software
Operating systemAndroid 16Android 11
SkinRealme UIFuntouch OS 11.1
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYesYes, v 5.10
USB Type-CYesYes
Number of SIMs22
USB OTG-Yes
sensors
Face unlockYes-
Fingerprint sensorYes-
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
In-Display Fingerprint Sensor-Yes
Gyroscope-Yes
sim 1
SIM Type-Nano-SIM
GSM/CDMA-GSM
3G-Yes
4G/ LTE-Yes
5G-Yes
sim 2
SIM Type-Nano-SIM
GSM/CDMA-GSM
3G-Yes
4G/ LTE-Yes
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