Huawei Nova 2 vs Vivo Y55s vs Oppo A57 comparison

Compare Huawei Nova 2
Compare Vivo Y55s
Compare Oppo A57
key specs
Display5.00-inch5.20-inch5.20-inch
ProcessorHiSilicon Kirin 659Qualcomm Snapdragon 425Qualcomm Snapdragon 435
Front Camera20-megapixel5-megapixel 16-megapixel
Rear Camera12-megapixel13-megapixel 13-megapixel
RAM4GB3GB3GB
Storage64GB16GB32GB
Battery Capacity2950mAh2730mAh2900mAh
OSAndroid 7.0Android 6.0Android 6.0
Resolution1080x1920 pixels1280x720 pixels720x1280 pixels
general
BrandHuaweiVivoOppo
ModelNova 2Y55sA57
Release dateMay 1, 2017February 1, 2017November 1, 2016
Form factorTouchscreenTouchscreenTouchscreen
Thickness6.9--
Battery capacity (mAh)295027302900
Removable batteryNoNoNo
Launched in India-YesYes
Dimensions (mm)-147.90 x 72.90 x 7.50149.10 x 72.90 x 7.65
Weight (g)-142.00147.00
Colours-Gold, Space GreyRose Gold, Gold
SAR value-1.081.31
display
Screen size (inches)5.005.205.20
TouchscreenYesYesYes
Resolution1080x1920 pixels1280x720 pixels720x1280 pixels
Aspect ratio-16:916:9
Pixels per inch (PPI)-282-
hardware
Processor2.36GHz octa-core1.4GHz quad-core1.4GHz octa-core
Processor makeHiSilicon Kirin 659Qualcomm Snapdragon 425Qualcomm Snapdragon 435
RAM4GB3GB3GB
Internal storage64GB16GB32GB
Expandable storageYesYesYes
Expandable storage typemicroSDmicroSDmicroSD
Expandable storage up to (GB)128256256
camera
Rear camera12-megapixel13-megapixel (f/2.2)13-megapixel (f/2.2)
Rear flashYesLEDLED
Front camera20-megapixel5-megapixel (f/2.2)16-megapixel (f/2.0, 1.12-micron)
Rear autofocus-YesPhase detection autofocus
Front autofocus--Yes
software
Operating systemAndroid 7.0Android 6.0Android 6.0
SkinEMUI 5.1Funtouch OS 3.0ColorOS 3.0
connectivity
Wi-FiYesYesYes
Wi-Fi standards supported802.11 b/g/n-802.11 b/g/n
GPSYesYesYes
BluetoothYesYesYes, v 4.10
NFCNoNoNo
InfraredNoNoNo
USB OTGNoYesYes
Headphones3.5mm3.5mm3.5mm
FMNoYesYes
Number of SIMs222
Wi-Fi DirectNoNoNo
Mobile High-Definition Link (MHL)NoNoNo
Micro-USB-YesYes
sim 1
3GNoYesYes
4G/ LTENoYesYes
SIM Type-Micro-SIMNano-SIM
GSM/CDMA-GSMGSM
sim 2
3GNoNoYes
4G/ LTENoNoYes
SIM Type--Nano-SIM
GSM/CDMA--GSM
sensors
Compass/ MagnetometerNoYesYes
Proximity sensorNoYesYes
AccelerometerNoYesYes
Ambient light sensorNoYesYes
GyroscopeNoYesYes
BarometerNoNoNo
Temperature sensorNoNoNo
Fingerprint sensor--Yes
ratings
Overall NDTV Rating-Read ReviewRead Review
Design Rating-
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Battery Life Rating-
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Value for Money Rating-

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