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Vivo Y91 vs Oppo A57 comparison

 Compare Vivo Y91
Vivo Y91
Compare Oppo A57
Oppo A57
key specs
Display6.22-inch5.20-inch
ProcessorMediaTek Helio P22 Qualcomm Snapdragon 435
Front Camera8-megapixel 16-megapixel
Rear Camera13-megapixel + 2-megapixel 13-megapixel
RAM2GB3GB
Storage32MB32GB
Battery Capacity4030mAh2900mAh
OSAndroid 8.1Android 6.0
Resolution720x1520 pixels720x1280 pixels
general
BrandVivoOppo
ModelY91A57
Release dateJanuary 1, 2019November 1, 2016
Launched in IndiaYesYes
Form factorTouchscreenTouchscreen
Dimensions (mm)155.11 x 75.09 x 8.28149.10 x 72.90 x 7.65
Weight (g)163.50147.00
Battery capacity (mAh)40302900
ColoursStarry Black, Ocean BlueRose Gold, Gold
Removable battery-No
SAR value-1.31
display
Screen size (inches)6.225.20
TouchscreenYesYes
Resolution720x1520 pixels720x1280 pixels
Aspect ratio-16:9
hardware
Processorocta-core1.4GHz octa-core
Processor makeMediaTek Helio P22 (MT6762R)Qualcomm Snapdragon 435
RAM2GB3GB
Internal storage32MB32GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)256256
Dedicated microSD slotYes-
camera
Rear camera13-megapixel (f/f/2.2) + 2-megapixel (f/f/2.4)13-megapixel (f/2.2)
Rear flashLEDLED
Front camera8-megapixel (f/f/1.8)16-megapixel (f/2.0, 1.12-micron)
Front flashNo-
Rear autofocus-Phase detection autofocus
Front autofocus-Yes
software
Operating systemAndroid 8.1Android 6.0
SkinFuntouch OS 4.5ColorOS 3.0
connectivity
Wi-FiYesYes
BluetoothYes, v 5.00Yes, v 4.10
NFCNoNo
Micro-USBYesYes
Headphones3.5mm3.5mm
Number of SIMs22
Active 4G on both SIM cardsYes-
Wi-Fi standards supported-802.11 b/g/n
GPS-Yes
Infrared-No
USB OTG-Yes
FM-Yes
Wi-Fi Direct-No
Mobile High-Definition Link (MHL)-No
sim 1
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sim 2
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sensors
Face unlockYes-
Fingerprint sensorYesYes
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesYes
Barometer-No
Temperature sensor-No
ratings
Overall NDTV Rating-Read Review
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-

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