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Vivo X21 vs Oppo R15 Dream Mirror Edition vs Vivo V9 comparison

 Compare Vivo X21
Vivo X21
Compare Oppo R15 Dream Mirror Edition
Oppo R15 Dream Mirror Edition
Compare Vivo V9
Vivo V9
ratings
Overall NDTV RatingRead Review-Read Review
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
key specs
Display6.28-inch6.28-inch6.30-inch
ProcessorQualcomm Snapdragon 660Qualcomm Snapdragon 660Qualcomm Snapdragon 626
Front Camera12-megapixel 20-megapixel24-megapixel
Rear Camera12-megapixel + 5-megapixel 16-megapixel16-megapixel + 5-megapixel
RAM6GB6GB4GB
Storage128GB128GB64GB
Battery Capacity3200mAh3400mAh3260mAh
OSAndroid 8.1Android 8.1Android 8.1
Resolution1080x2280 pixels1080x2280 pixels1080x2280 pixels
general
BrandVivoOppoVivo
ModelX21R15 Dream Mirror EditionV9
Release dateMarch 1, 2018March 1, 2018March 1, 2018
Launched in IndiaYes-Yes
Form factorTouchscreenTouchscreenTouchscreen
Dimensions (mm)154.50 x 74.80 x 7.40155.30 x 75.00 x 7.50154.80 x 75.00 x 7.90
Weight (g)156.20175.00150.00
Battery capacity (mAh)320034003260
Removable batteryNo-No
Fast chargingProprietary--
ColoursBlack, GoldDream Mirror Red, Ceramic EditionPearl Black, Gold
SAR value--1.38
display
Screen size (inches)6.286.286.30
TouchscreenYesYesYes
Resolution1080x2280 pixels1080x2280 pixels1080x2280 pixels
Aspect ratio19:9-19:9
hardware
Processor2.2GHz octa-core2GHz octa-core2.2GHz octa-core
Processor makeQualcomm Snapdragon 660Qualcomm Snapdragon 660Qualcomm Snapdragon 626
RAM6GB6GB4GB
Internal storage128GB128GB64GB
Expandable storageYesYesYes
Expandable storage typemicroSDmicroSDmicroSD
Expandable storage up to (GB)256256256
camera
Rear camera12-megapixel (f/1.8, 1.4-micron) + 5-megapixel (f/2.4)16-megapixel16-megapixel (f/2.0) + 5-megapixel
Rear autofocusPhase detection autofocus-Phase detection autofocus
Rear flashLEDLEDDual LED
Front camera12-megapixel (f/2.0)20-megapixel24-megapixel (f/2.0)
software
Operating systemAndroid 8.1Android 8.1Android 8.1
SkinFunTouch 4.0ColorOS 5.0FunTouch OS 4.0
connectivity
Wi-FiYesYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac802.11 a/b/g/n/ac-
GPSYesYesYes
BluetoothYes, v 5.00Yes, v 4.20Yes, v 4.20
NFCNo--
InfraredNo--
USB OTGYes-Yes
Micro-USBYes-Yes
Headphones3.5mm-3.5mm
FMNo-Yes
Number of SIMs222
Wi-Fi Direct-Yes-
sim 1
SIM TypeNano-SIMNano-SIMNano-SIM
GSM/CDMAGSMGSMGSM
3GYesYesYes
4G/ LTEYesYesYes
sim 2
SIM TypeNano-SIMNano-SIMNano-SIM
GSM/CDMAGSMGSMGSM
3GYesYesYes
4G/ LTEYesYesYes
sensors
Fingerprint sensorYes-Yes
Compass/ MagnetometerYes-Yes
Proximity sensorYesYesYes
AccelerometerYesYesYes
Ambient light sensorYesYesYes
GyroscopeYes-Yes
Face unlock--Yes
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