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Vivo Y91 vs Vivo Y81 vs Xiaomi Redmi 6 Pro vs Oppo A3 comparison

 Compare Vivo Y91
Vivo Y91
Compare Vivo Y81
Vivo Y81
Compare Xiaomi Redmi 6 Pro
Xiaomi Redmi 6 Pro
Compare Oppo A3
Oppo A3
key specs
Display6.22-inch6.22-inch5.84-inch6.20-inch
ProcessorMediaTek Helio P22 MediaTek Helio P22 Qualcomm Snapdragon 625MediaTek Helio P60
Front Camera8-megapixel 5-megapixel 5-megapixel8-megapixel
Rear Camera13-megapixel + 2-megapixel 13-megapixel 12-megapixel + 5-megapixel16-megapixel
RAM2GB3GB4GB4GB
Storage32MB32GB64GB128GB
Battery Capacity4030mAh3260mAh4000mAh3400mAh
OSAndroid 8.1Android 8.1Android 8.1 OreoAndroid 8.1
Resolution720x1520 pixels720x1520 pixels1080x2280 pixels1080x2280 pixels
general
BrandVivoVivoXiaomiOppo
ModelY91Y81Redmi 6 ProA3
Release dateJanuary 1, 2019June 1, 2018September 1, 2018April 1, 2018
Launched in IndiaYesYesYes-
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Dimensions (mm)155.11 x 75.09 x 8.28155.06 x 75.00 x 7.77149.33 x 71.68 x 8.75156.00 x 75.30 x 7.80
Weight (g)163.50146.50178.00159.00
Battery capacity (mAh)4030326040003400
ColoursStarry Black, Ocean BlueBlackGold, Blue, Black, RedKnight Black, Soybean Meal, Stardust Silver, Garnet Red
Body type-PlasticMetal-
Removable battery--No-
Wireless charging--No-
SAR value--0.96-
display
Screen size (inches)6.226.225.846.20
TouchscreenYesYesYesYes
Resolution720x1520 pixels720x1520 pixels1080x2280 pixels1080x2280 pixels
Aspect ratio-19:919:919:9
Pixels per inch (PPI)-270432-
hardware
Processorocta-core2GHz octa-core2GHz octa-core (8x2GHz)2GHz octa-core
Processor makeMediaTek Helio P22 (MT6762R)MediaTek Helio P22 (MT6762)Qualcomm Snapdragon 625MediaTek Helio P60 (MT6771)
RAM2GB3GB4GB4GB
Internal storage32MB32GB64GB128GB
Expandable storageYesYesYesYes
Expandable storage typemicroSDmicroSDmicroSDmicroSD
Expandable storage up to (GB)256256256256
Dedicated microSD slotYes-Yes-
camera
Rear camera13-megapixel (f/f/2.2) + 2-megapixel (f/f/2.4)13-megapixel (f/2.2)12-megapixel (f/2.2, 1.25-micron) + 5-megapixel16-megapixel (f/1.8)
Rear flashLEDLEDLEDYes
Front camera8-megapixel (f/f/1.8)5-megapixel (f/2.2)5-megapixel8-megapixel (f/2.2)
Front flashNo-No-
Rear autofocus-Phase detection autofocusPhase detection autofocus-
software
Operating systemAndroid 8.1Android 8.1Android 8.1 OreoAndroid 8.1
SkinFuntouch OS 4.5FunTouch OS 4.0MIUI 9.6ColorOS 5.0
connectivity
Wi-FiYesYesYesYes
BluetoothYes, v 5.00Yes, v 5.00Yes, v 4.20Yes, v 4.20
NFCNo-No-
Micro-USBYesYesYes-
Headphones3.5mm3.5mm3.5mm3.5mm
Number of SIMs2222
Active 4G on both SIM cardsYes-No-
Wi-Fi standards supported-802.11 b/g/n802.11 a/b/g/n-
GPS-YesYesYes
Wi-Fi Direct-Yes--
Infrared--Yes-
USB OTG--YesYes
USB Type-C--No-
FM--Yes-
sim 1
SIM TypeNano-SIMNano-SIMNano-SIMNano-SIM
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/ LTEYesYesYesYes
sim 2
SIM TypeNano-SIMNano-SIMNano-SIMNano-SIM
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/ LTEYesYesYesYes
sensors
Face unlockYes-Yes-
Fingerprint sensorYes-Yes-
Compass/ MagnetometerYesYesYes-
Proximity sensorYesYesYesYes
AccelerometerYesYesYes-
Ambient light sensorYes-YesYes
GyroscopeYes-YesYes
3D face recognition--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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