Redmi 9 Power vs Vivo X21 UD comparison

Compare Redmi 9 Power
Compare Vivo X21 UD
ratings
Overall NDTV RatingRead Review-
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
key specs
Display6.53-inch6.28-inch
ProcessorQualcomm Snapdragon 662Qualcomm Snapdragon 660
Front Camera8-megapixel12-megapixel
Rear Camera48-megapixel + 8-megapixel + 2-megapixel + 2-megapixel12-megapixel
RAM4GB6GB
Storage64GB128GB
Battery Capacity6000mAh3200mAh
OSAndroid 10Android 8.1
Resolution1080x2340 pixels1080x2280 pixels
general
BrandXiaomiVivo
ModelRedmi 9 PowerX21 UD
Release dateDecember 17, 2020March 1, 2018
Launched in IndiaYes-
Form factorTouchscreenTouchscreen
Dimensions (mm)162.30 x 77.30 x 9.60154.50 x 74.80 x 7.40
Weight (g)198.00156.20
Battery capacity (mAh)60003200
Fast chargingProprietary-
ColoursBlazing Blue, Electric Green, Fiery Red, Mighty BlackRuby Red, Aurora White, Black
display
Screen size (inches)6.536.28
TouchscreenYesYes
Resolution1080x2340 pixels1080x2280 pixels
Protection typeGorilla Glass-
Aspect ratio19.5:9-
hardware
Processorocta-coreocta-core
Processor makeQualcomm Snapdragon 662Qualcomm Snapdragon 660
RAM4GB6GB
Internal storage64GB128GB
Expandable storageYes-
Expandable storage typemicroSD-
Expandable storage up to (GB)512-
Dedicated microSD slotYes-
camera
Rear camera48-megapixel + 8-megapixel + 2-megapixel + 2-megapixel12-megapixel
Rear autofocusYes-
Rear flashYesLED
Front camera8-megapixel12-megapixel
software
Operating systemAndroid 10Android 8.1
SkinMIUI 12FunTouch 4.0
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac802.11 a/b/g/n/ac
GPSYesYes
BluetoothYes, v 5.00Yes, v 5.00
InfraredYes-
USB Type-CYes-
Headphones3.5mm3.5mm
FMYes-
Number of SIMs22
Wi-Fi DirectYes-
USB OTG-Yes
sim 1
SIM TypeNano-SIMMicro-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sim 2
SIM TypeNano-SIMMicro-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sensors
Face unlockYes-
Fingerprint sensorYes-
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYes-
Ambient light sensorYesYes
Gyroscope-Yes
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