Vivo X23 vs Oppo Find X vs Vivo X21 vs Oppo A57 comparison

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key specs
Display6.41-inch6.42-inch6.28-inch5.20-inch
ProcessorQualcomm Snapdragon 670Qualcomm Snapdragon 845Qualcomm Snapdragon 660Qualcomm Snapdragon 435
Front Camera12-megapixel 25-megapixel 12-megapixel 16-megapixel
Rear Camera12-megapixel + 13-megapixel 16-megapixel + 20-megapixel 12-megapixel + 5-megapixel 13-megapixel
RAM8GB8GB6GB3GB
Storage128GB256GB128GB32GB
Battery Capacity3400mAh3730mAh3200mAh2900mAh
OSAndroid 8.1 OreoAndroid 8.1Android 8.1Android 6.0
Resolution1080x2340 pixels1080x2340 pixels1080x2280 pixels720x1280 pixels
general
BrandVivoOppoVivoOppo
ModelX23Find XX21A57
Release dateSeptember 1, 2018June 1, 2018March 1, 2018November 1, 2016
Launched in IndiaNoYesYesYes
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Body typeGlassGlass--
Dimensions (mm)157.68 x 74.06 x 7.47156.70 x 74.30 x 9.40154.50 x 74.80 x 7.40149.10 x 72.90 x 7.65
Weight (g)160.50186.00156.20147.00
Battery capacity (mAh)3400373032002900
ColoursFashion Orange, Fashion Purple, Midnight Blue, Phantom Purple, Phantom RedBordeaux Red, Glacier BlueBlack, GoldRose Gold, Gold
Removable battery-NoNoNo
Fast charging-VOOCProprietary-
SAR value---1.31
display
Screen size (inches)6.416.426.285.20
TouchscreenYesYesYesYes
Resolution1080x2340 pixels1080x2340 pixels1080x2280 pixels720x1280 pixels
Protection type-Gorilla Glass--
Aspect ratio-19.5:919:916:9
hardware
Processor2GHz octa-core2.5GHz octa-core (4x2.8GHz + 4x1.7GHz)2.2GHz octa-core1.4GHz octa-core
Processor makeQualcomm Snapdragon 670Qualcomm Snapdragon 845Qualcomm Snapdragon 660Qualcomm Snapdragon 435
RAM8GB8GB6GB3GB
Internal storage128GB256GB128GB32GB
Expandable storage--YesYes
Expandable storage type--microSDmicroSD
Expandable storage up to (GB)--256256
camera
Rear camera12-megapixel (f/1.8) + 13-megapixel (f/2.4)16-megapixel (f/2.0, 1.22-micron) + 20-megapixel (f/2.0, 1.0-micron)12-megapixel (f/1.8, 1.4-micron) + 5-megapixel (f/2.4)13-megapixel (f/2.2)
Front camera12-megapixel (f/2.0)25-megapixel (f/2.0)12-megapixel (f/2.0)16-megapixel (f/2.0, 1.12-micron)
Rear autofocus-Phase detection autofocusPhase detection autofocusPhase detection autofocus
Rear flash-LEDLEDLED
Pop-Up Camera-Yes--
Front autofocus---Yes
software
Operating systemAndroid 8.1 OreoAndroid 8.1Android 8.1Android 6.0
SkinFuntouch OS 4.5Color OS 5.1FunTouch 4.0ColorOS 3.0
connectivity
Wi-FiYesYesYesYes
GPSYesYesYesYes
BluetoothYes, v 4.00Yes, v 5.00Yes, v 5.00Yes, v 4.10
USB OTGYes-YesYes
Number of SIMs2222
Wi-Fi standards supported-802.11 a/b/g/n/ac802.11 a/b/g/n/ac802.11 b/g/n
USB Type-C-Yes--
Headphones-No3.5mm3.5mm
NFC--NoNo
Infrared--NoNo
Micro-USB--YesYes
FM--NoYes
Wi-Fi Direct---No
Mobile High-Definition Link (MHL)---No
sim 1
GSM/CDMAGSMGSM + CDMAGSMGSM
4G/ LTEYesYesYesYes
SIM Type-Nano-SIMNano-SIMNano-SIM
3G-YesYesYes
sim 2
GSM/CDMAGSMGSM + CDMAGSMGSM
4G/ LTEYes-YesYes
SIM Type-Nano-SIMNano-SIMNano-SIM
3G--YesYes
sensors
Face unlockYesYes--
Fingerprint sensorYes-YesYes
Compass/ MagnetometerYesYesYesYes
Proximity sensorYesYesYesYes
AccelerometerYesYesYesYes
Ambient light sensorYes-YesYes
Gyroscope-YesYesYes
Barometer---No
Temperature sensor---No
ratings
Overall NDTV Rating-Read ReviewRead ReviewRead Review
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
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Value for Money Rating-

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