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Vivo Y91 vs Vivo Y81 vs Xiaomi Mi A2 vs Vivo Y71 comparison

 Compare Vivo Y91
Vivo Y91
Compare Vivo Y81
Vivo Y81
Compare Xiaomi Mi A2
Xiaomi Mi A2
Compare Vivo Y71
Vivo Y71
key specs
Display6.22-inch6.22-inch5.99-inch6.00-inch
ProcessorMediaTek Helio P22 MediaTek Helio P22 Qualcomm Snapdragon 660Qualcomm Snapdragon 425
Front Camera8-megapixel 5-megapixel 20-megapixel 5-megapixel
Rear Camera13-megapixel + 2-megapixel 13-megapixel 12-megapixel + 20-megapixel 13-megapixel
RAM2GB3GB4GB3GB
Storage32MB32GB64GB16GB
Battery Capacity4030mAh3260mAh3000mAh3360mAh
OSAndroid 8.1Android 8.1Android 8.1 OreoAndroid 8.1 Oreo
Resolution720x1520 pixels720x1520 pixels1080x2160 pixels720x1440 pixels
general
BrandVivoVivoXiaomiVivo
ModelY91Y81Mi A2Y71
Release dateJanuary 1, 2019June 1, 2018July 1, 2018April 1, 2018
Launched in IndiaYesYesYesYes
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Dimensions (mm)155.11 x 75.09 x 8.28155.06 x 75.00 x 7.77158.70 x 75.40 x 7.30155.90 x 75.70 x 7.80
Weight (g)163.50146.50168.00150.00
Battery capacity (mAh)4030326030003360
ColoursStarry Black, Ocean BlueBlackBlack, Gold, Lake Blue, Rose GoldBlack, Gold
Body type-Plastic--
Removable battery--No-
display
Screen size (inches)6.226.225.996.00
TouchscreenYesYesYesYes
Resolution720x1520 pixels720x1520 pixels1080x2160 pixels720x1440 pixels
Aspect ratio-19:918:918:9
Pixels per inch (PPI)-270403-
hardware
Processorocta-core2GHz octa-coreocta-core (4x2.2GHz + 4x1.8GHz)1.4GHz quad-core
Processor makeMediaTek Helio P22 (MT6762R)MediaTek Helio P22 (MT6762)Qualcomm Snapdragon 660Qualcomm Snapdragon 425
RAM2GB3GB4GB3GB
Internal storage32MB32GB64GB16GB
Expandable storageYesYesNo-
Expandable storage typemicroSDmicroSDmicroSD-
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)12-megapixel (f/1.8, 1.25-micron) + 20-megapixel (f/1.8, 1.0-micron)13-megapixel
Rear flashLEDLEDDual LED-
Front camera8-megapixel (f/f/1.8)5-megapixel (f/2.2)20-megapixel (f/2.2, 1.0-micron)5-megapixel
Front flashNo-LED-
Rear autofocus-Phase detection autofocusPhase detection autofocus-
software
Operating systemAndroid 8.1Android 8.1Android 8.1 OreoAndroid 8.1 Oreo
SkinFuntouch OS 4.5FunTouch OS 4.0-FunTouch OS
connectivity
Wi-FiYesYesYesYes
BluetoothYes, v 5.00Yes, v 5.00Yes, v 5.00Yes, v 4.20
NFCNo-Yes-
Micro-USBYesYes-Yes
Headphones3.5mm3.5mmNo3.5mm
Number of SIMs2222
Active 4G on both SIM cardsYes---
Wi-Fi standards supported-802.11 b/g/n802.11 a/b/g/n/ac802.11 b/g/n
GPS-YesYesYes
Wi-Fi Direct-YesYesYes
USB OTG--Yes-
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---
Fingerprint sensorYes-Yes-
Compass/ MagnetometerYesYesYesYes
Proximity sensorYesYesYesYes
AccelerometerYesYesYesYes
Ambient light sensorYes-YesYes
GyroscopeYes-YesYes
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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