Redmi Note 9 Pro vs Vivo X21i comparison

Compare Redmi Note 9 Pro
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
Display6.67-inch6.28-inch
ProcessorQualcomm Snapdragon 720GMediaTek Helio P60
Front Camera16-megapixel24-megapixel
Rear Camera48-megapixel + 8-megapixel + 5-megapixel + 2-megapixel12-megapixel
RAM4GB4GB
Storage64GB64GB
Battery Capacity5020mAh3245mAh
OSAndroid 10Android 8.1
Resolution1080x2400 pixels1080x2280 pixels
general
BrandXiaomiVivo
ModelRedmi Note 9 ProX21i
Release date12th March 2020May 2018
Launched in IndiaYes-
Form factorTouchscreenTouchscreen
Dimensions (mm)165.70 x 76.60 x 8.80154.37 x 74.98 x 6.99
Weight (g)209.00159.00
Battery capacity (mAh)50203245
Fast chargingProprietary-
ColoursInterstellar Black, Aurora Blue, Glacier WhiteAurora White, Polar Night, Ruby Red
display
Screen size (inches)6.676.28
TouchscreenYesYes
Resolution1080x2400 pixels1080x2280 pixels
Protection typeGorilla Glass-
Aspect ratio20:9-
hardware
Processor2.3GHz octa-core2GHz octa-core
Processor makeQualcomm Snapdragon 720GMediaTek Helio P60 (MT6771)
RAM4GB4GB
Internal storage64GB64GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)512256
Dedicated microSD slotYes-
camera
Rear camera48-megapixel (f/1.79) + 8-megapixel + 5-megapixel + 2-megapixel12-megapixel
Rear autofocusPhase detection autofocus-
Front camera16-megapixel24-megapixel
Rear flash-Dual LED
software
Operating systemAndroid 10Android 8.1
SkinMIUI 11Funtouch OS 4
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac802.11 b/g/n
GPSYesYes
BluetoothYes, v 5.00Yes
USB Type-CYes-
Headphones3.5mm-
Number of SIMs22
Wi-Fi DirectYes-
Active 4G on both SIM cardsYes-
USB OTG-Yes
FM-Yes
sim 1
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sim 2
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sensors
Face unlockYes-
Fingerprint sensorYes-
Compass/ MagnetometerYes-
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesYes

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