Oppo Find X vs Ziox Astra Curve Pro vs Vivo X21 comparison

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ratings
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Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
key specs
Display6.42-inch5.50-inch6.28-inch
ProcessorQualcomm Snapdragon 8451.3GHz quad-coreQualcomm Snapdragon 660
Front Camera25-megapixel 5-megapixel12-megapixel
Rear Camera16-megapixel + 20-megapixel 5-megapixel12-megapixel + 5-megapixel
RAM8GB1GB6GB
Storage256GB8GB128GB
Battery Capacity3730mAh2800mAh3200mAh
OSAndroid 8.1Android 7.0Android 8.1
Resolution1080x2340 pixels720x1080 pixels1080x2280 pixels
general
BrandOppoZioxVivo
ModelFind XAstra Curve ProX21
Release dateJune 1, 2018May 1, 2018March 1, 2018
Launched in IndiaYes-Yes
Form factorTouchscreenTouchscreenTouchscreen
Body typeGlass--
Dimensions (mm)156.70 x 74.30 x 9.40-154.50 x 74.80 x 7.40
Weight (g)186.00-156.20
Battery capacity (mAh)373028003200
Removable batteryNo-No
Fast chargingVOOC-Proprietary
ColoursBordeaux Red, Glacier BlueRed, Blue, GreyBlack, Gold
display
Screen size (inches)6.425.506.28
TouchscreenYesYesYes
Resolution1080x2340 pixels720x1080 pixels1080x2280 pixels
Protection typeGorilla Glass--
Aspect ratio19.5:9-19:9
hardware
Processor2.5GHz octa-core (4x2.8GHz + 4x1.7GHz)1.3GHz quad-core2.2GHz octa-core
Processor makeQualcomm Snapdragon 845-Qualcomm Snapdragon 660
RAM8GB1GB6GB
Internal storage256GB8GB128GB
Expandable storage--Yes
Expandable storage type--microSD
Expandable storage up to (GB)--256
camera
Rear camera16-megapixel (f/2.0, 1.22-micron) + 20-megapixel (f/2.0, 1.0-micron)5-megapixel12-megapixel (f/1.8, 1.4-micron) + 5-megapixel (f/2.4)
Rear autofocusPhase detection autofocus-Phase detection autofocus
Rear flashLEDYesLED
Front camera25-megapixel (f/2.0)5-megapixel12-megapixel (f/2.0)
Pop-Up CameraYes--
software
Operating systemAndroid 8.1Android 7.0Android 8.1
SkinColor OS 5.1-FunTouch 4.0
connectivity
Wi-FiYes-Yes
Wi-Fi standards supported802.11 a/b/g/n/ac-802.11 a/b/g/n/ac
GPSYes-Yes
BluetoothYes, v 5.00-Yes, v 5.00
USB Type-CYes--
HeadphonesNo-3.5mm
Number of SIMs2-2
NFC--No
Infrared--No
USB OTG--Yes
Micro-USB--Yes
FM--No
sim 1
SIM TypeNano-SIM-Nano-SIM
GSM/CDMAGSM + CDMA-GSM
3GYes-Yes
4G/ LTEYes-Yes
sim 2
SIM TypeNano-SIM-Nano-SIM
GSM/CDMAGSM + CDMA-GSM
3G--Yes
4G/ LTE--Yes
sensors
Face unlockYes--
Compass/ MagnetometerYes-Yes
Proximity sensorYes-Yes
AccelerometerYes-Yes
GyroscopeYes-Yes
Fingerprint sensor--Yes
Ambient light sensor--Yes
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