Vivo Y91 vs Oppo A3s vs Xiaomi Redmi 6A comparison

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key specs
Display6.22-inch6.20-inch5.45-inch
ProcessorMediaTek Helio P22 Qualcomm Snapdragon 450MediaTek Helio A22
Front Camera8-megapixel 8-megapixel 5-megapixel
Rear Camera13-megapixel + 2-megapixel 13-megapixel + 2-megapixel 13-megapixel
RAM2GB2GB2GB
Storage32MB16GB16GB
Battery Capacity4030mAh4230mAh3000mAh
OSAndroid 8.1Android 8.1 OreoAndroid 8.1 Oreo
Resolution720x1520 pixels720x1520 pixels720x1440 pixels
general
BrandVivoOppoXiaomi
ModelY91A3sRedmi 6A
Release dateJanuary 1, 2019-June 1, 2018
Launched in IndiaYes-Yes
Form factorTouchscreenTouchscreenTouchscreen
Dimensions (mm)155.11 x 75.09 x 8.28156.20 x 75.60 x 8.20147.50 x 71.50 x 8.30
Weight (g)163.50168.00145.00
Battery capacity (mAh)403042303000
ColoursStarry Black, Ocean BlueRed, Dark PurpleBlue, Gold, Rose Gold, Black
Body type--Plastic
Removable battery--No
Wireless charging--No
display
Screen size (inches)6.226.205.45
TouchscreenYesYesYes
Resolution720x1520 pixels720x1520 pixels720x1440 pixels
Aspect ratio-19:918:9
Pixels per inch (PPI)--295
hardware
Processorocta-core1.8GHz octa-core2GHz quad-core (4x2GHz)
Processor makeMediaTek Helio P22 (MT6762R)Qualcomm Snapdragon 450MediaTek Helio A22 (MT6761)
RAM2GB2GB2GB
Internal storage32MB16GB16GB
Expandable storageYesYesYes
Expandable storage typemicroSDmicroSDmicroSD
Expandable storage up to (GB)256256256
Dedicated microSD slotYes-Yes
camera
Rear camera13-megapixel (f/f/2.2) + 2-megapixel (f/f/2.4)13-megapixel (f/2.2) + 2-megapixel (f/2.4)13-megapixel (f/2.2)
Rear flashLEDLEDLED
Front camera8-megapixel (f/f/1.8)8-megapixel (f/2.2)5-megapixel
Front flashNo-No
Rear autofocus-YesPhase detection autofocus
software
Operating systemAndroid 8.1Android 8.1 OreoAndroid 8.1 Oreo
SkinFuntouch OS 4.5ColorOS 5.1MIUI 9.6
connectivity
Wi-FiYesYesYes
BluetoothYes, v 5.00Yes, v 4.20Yes, v 4.20
NFCNo-No
Micro-USBYesYesYes
Headphones3.5mm3.5mm3.5mm
Number of SIMs2-2
Active 4G on both SIM cardsYes-Yes
GPS-YesYes
Wi-Fi Direct-Yes-
Wi-Fi standards supported--802.11 b/g/n
Infrared--No
USB OTG--Yes
USB Type-C--No
FM--Yes
sim 1
SIM TypeNano-SIM-Nano-SIM
GSM/CDMAGSM-GSM
3GYes-Yes
4G/ LTEYes-Yes
sim 2
SIM TypeNano-SIM-Nano-SIM
GSM/CDMAGSM-GSM
3GYes-Yes
4G/ LTEYes-Yes
sensors
Face unlockYes-Yes
Fingerprint sensorYes-No
Compass/ MagnetometerYesYesYes
Proximity sensorYesYesYes
AccelerometerYesYesYes
Ambient light sensorYes-Yes
GyroscopeYes-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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