Vivo Y91 vs Oppo A3s vs Redmi Note 5 Pro vs Redmi Note 5 comparison

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key specs
Display6.22-inch6.20-inch5.99-inch5.99-inch
ProcessorMediaTek Helio P22 Qualcomm Snapdragon 450Qualcomm Snapdragon 636Qualcomm Snapdragon 625
Front Camera8-megapixel 8-megapixel 20-megapixel 5-megapixel
Rear Camera13-megapixel + 2-megapixel 13-megapixel + 2-megapixel 12-megapixel + 5-megapixel 12-megapixel
RAM2GB2GB4GB4GB
Storage32MB16GB64GB64GB
Battery Capacity4030mAh4230mAh4000mAh4000mAh
OSAndroid 8.1Android 8.1 OreoAndroid 7.1.1Android 7.0
Resolution720x1520 pixels720x1520 pixels1080x2160 pixels1080x2160 pixels
general
BrandVivoOppoXiaomiXiaomi
ModelY91A3sRedmi Note 5 ProRedmi Note 5
Release dateJanuary 1, 2019-February 1, 2018February 1, 2018
Launched in IndiaYes-YesYes
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Dimensions (mm)155.11 x 75.09 x 8.28156.20 x 75.60 x 8.20158.60 x 75.40 x 8.05158.50 x 75.45 x 8.05
Weight (g)163.50168.00181.00180.00
Battery capacity (mAh)4030423040004000
ColoursStarry Black, Ocean BlueRed, Dark PurpleBlack, Gold, Lake Blue, Rose GoldBlack, Gold, Lake Blue, Rose Gold
Body type--Metal-
Removable battery--NoNo
SAR value--1.19-
display
Screen size (inches)6.226.205.995.99
TouchscreenYesYesYesYes
Resolution720x1520 pixels720x1520 pixels1080x2160 pixels1080x2160 pixels
Aspect ratio-19:918:918:9
Protection type--Gorilla Glass-
Pixels per inch (PPI)---403
hardware
Processorocta-core1.8GHz octa-core1.8GHz octa-core2GHz octa-core
Processor makeMediaTek Helio P22 (MT6762R)Qualcomm Snapdragon 450Qualcomm Snapdragon 636Qualcomm Snapdragon 625
RAM2GB2GB4GB4GB
Internal storage32MB16GB64GB64GB
Expandable storageYesYesYesYes
Expandable storage typemicroSDmicroSDmicroSDmicroSD
Expandable storage up to (GB)256256128-
Dedicated microSD slotYes---
camera
Rear camera13-megapixel (f/f/2.2) + 2-megapixel (f/f/2.4)13-megapixel (f/2.2) + 2-megapixel (f/2.4)12-megapixel (f/2.2, 1.25-micron) + 5-megapixel (f/2.0, 1.12-micron)12-megapixel (f/2.2, 1.25-micron)
Rear flashLEDLEDLEDDual LED
Front camera8-megapixel (f/f/1.8)8-megapixel (f/2.2)20-megapixel (f/2.2, 1.0-micron)5-megapixel
Front flashNo-LEDLED
Rear autofocus-YesPhase detection autofocusPhase detection autofocus
software
Operating systemAndroid 8.1Android 8.1 OreoAndroid 7.1.1Android 7.0
SkinFuntouch OS 4.5ColorOS 5.1MIUI 9MIUI 9
connectivity
Wi-FiYesYesYesYes
BluetoothYes, v 5.00Yes, v 4.20Yes, v 5.00Yes, v 4.20
NFCNo-NoNo
Micro-USBYesYesYesYes
Headphones3.5mm3.5mm3.5mm3.5mm
Number of SIMs2-22
Active 4G on both SIM cardsYes---
GPS-YesYesYes
Wi-Fi Direct-YesYesNo
Wi-Fi standards supported--802.11 b/g/n/ac802.11 b/g/n
Infrared--NoNo
USB OTG--YesYes
FM--YesYes
Mobile High-Definition Link (MHL)--NoNo
sim 1
SIM TypeNano-SIM-Nano-SIMNano-SIM
GSM/CDMAGSM-GSMGSM
3GYes-YesYes
4G/ LTEYes-YesYes
sim 2
SIM TypeNano-SIM-Nano-SIMNano-SIM
GSM/CDMAGSM-GSMGSM
3GYes-YesYes
4G/ LTEYes-YesYes
sensors
Face unlockYes-Yes-
Fingerprint sensorYes-YesYes
Compass/ MagnetometerYesYesYesYes
Proximity sensorYesYesYesYes
AccelerometerYesYesYesYes
Ambient light sensorYes-YesYes
GyroscopeYes-YesYes
3D face recognition--No-
Barometer--NoNo
Temperature sensor--NoNo
ratings
Overall NDTV Rating--Read ReviewRead Review
Design Rating--
Display Rating--
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Performance Rating--
Battery Life Rating--
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Value for Money Rating--

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