Vivo V15 vs Vivo X21 comparison

Compare Vivo V15
Compare Vivo X21
ratings
Overall NDTV RatingRead ReviewRead 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
ProcessorMediaTek Helio P70Qualcomm Snapdragon 660
Front Camera32-megapixel 12-megapixel
Rear Camera12-megapixel + 8-megapixel + 5-megapixel 12-megapixel + 5-megapixel
RAM6GB6GB
Storage64GB128GB
Battery Capacity4000mAh3200mAh
OSAndroid 9.0 PieAndroid 8.1
Resolution1080x2340 pixels1080x2280 pixels
general
BrandVivoVivo
ModelV15X21
Release dateFebruary 1, 2019March 1, 2018
Form factorTouchscreenTouchscreen
Dimensions (mm)161.97 x 75.93 x 8.54154.50 x 74.80 x 7.40
Weight (g)189.50156.20
Battery capacity (mAh)40003200
Fast chargingProprietaryProprietary
Launched in India-Yes
Removable battery-No
Colours-Black, Gold
display
Screen size (inches)6.536.28
TouchscreenYesYes
Resolution1080x2340 pixels1080x2280 pixels
Protection typeGorilla Glass-
Aspect ratio19.5:919:9
hardware
Processor2.1GHz octa-core2.2GHz octa-core
Processor makeMediaTek Helio P70Qualcomm Snapdragon 660
RAM6GB6GB
Internal storage64GB128GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)256256
camera
Rear camera12-megapixel (f/1.78) + 8-megapixel (f/2.2) + 5-megapixel (f/2.4)12-megapixel (f/1.8, 1.4-micron) + 5-megapixel (f/2.4)
Rear autofocusYesPhase detection autofocus
Rear flashYesLED
Front camera32-megapixel (f/2.0)12-megapixel (f/2.0)
Pop-Up CameraYes-
software
Operating systemAndroid 9.0 PieAndroid 8.1
SkinFuntouch OS 9FunTouch 4.0
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYes, v 4.20Yes, v 5.00
USB OTGYesYes
Micro-USBYesYes
Headphones3.5mm3.5mm
FMYesNo
Number of SIMs22
Wi-Fi DirectYes-
Wi-Fi standards supported-802.11 a/b/g/n/ac
NFC-No
Infrared-No
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 sensorYesYes
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesYes
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