Vivo Y55s vs Oppo A57 comparison

Compare Vivo Y55s
Compare Oppo A57
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
Display5.20-inch5.20-inch
ProcessorQualcomm Snapdragon 425Qualcomm Snapdragon 435
Front Camera5-megapixel 16-megapixel
Rear Camera13-megapixel 13-megapixel
RAM3GB3GB
Storage16GB32GB
Battery Capacity2730mAh2900mAh
OSAndroid 6.0Android 6.0
Resolution1280x720 pixels720x1280 pixels
general
BrandVivoOppo
ModelY55sA57
Release dateFebruary 1, 2017November 1, 2016
Launched in IndiaYesYes
Form factorTouchscreenTouchscreen
Dimensions (mm)147.90 x 72.90 x 7.50149.10 x 72.90 x 7.65
Weight (g)142.00147.00
Battery capacity (mAh)27302900
Removable batteryNoNo
ColoursGold, Space GreyRose Gold, Gold
SAR value1.081.31
display
Screen size (inches)5.205.20
TouchscreenYesYes
Resolution1280x720 pixels720x1280 pixels
Aspect ratio16:916:9
Pixels per inch (PPI)282-
hardware
Processor1.4GHz quad-core1.4GHz octa-core
Processor makeQualcomm Snapdragon 425Qualcomm Snapdragon 435
RAM3GB3GB
Internal storage16GB32GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)256256
camera
Rear camera13-megapixel (f/2.2)13-megapixel (f/2.2)
Rear autofocusYesPhase detection autofocus
Rear flashLEDLED
Front camera5-megapixel (f/2.2)16-megapixel (f/2.0, 1.12-micron)
Front autofocus-Yes
software
Operating systemAndroid 6.0Android 6.0
SkinFuntouch OS 3.0ColorOS 3.0
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYesYes, v 4.10
NFCNoNo
InfraredNoNo
USB OTGYesYes
Micro-USBYesYes
Headphones3.5mm3.5mm
FMYesYes
Number of SIMs22
Wi-Fi DirectNoNo
Mobile High-Definition Link (MHL)NoNo
Wi-Fi standards supported-802.11 b/g/n
sim 1
SIM TypeMicro-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sim 2
3GNoYes
4G/ LTENoYes
SIM Type-Nano-SIM
GSM/CDMA-GSM
sensors
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesYes
BarometerNoNo
Temperature sensorNoNo
Fingerprint sensor-Yes

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