Vivo Y91 vs Xiaomi Redmi S2 vs Xiaomi Redmi 5 Plu comparison

Compare Vivo Y91
Compare Xiaomi Redmi S2
Compare Xiaomi Redmi 5 Plus
key specs
Display6.22-inch5.99-inch5.99-inch
ProcessorMediaTek Helio P22 Qualcomm Snapdragon 625Qualcomm Snapdragon 625
Front Camera8-megapixel 16-megapixel5-megapixel
Rear Camera13-megapixel + 2-megapixel 12-megapixel12-megapixel
RAM2GB3GB3GB
Storage32MB32GB32GB
Battery Capacity4030mAh3080mAh4000mAh
OSAndroid 8.1Android 8.1 OreoAndroid 7.1.2
Resolution720x1520 pixels720x1440 pixels1080x2160 pixels
general
BrandVivoXiaomiXiaomi
ModelY91Redmi S2Redmi 5 Plus
Release dateJanuary 1, 2019May 1, 2018December 1, 2017
Launched in IndiaYes--
Form factorTouchscreenTouchscreenTouchscreen
Dimensions (mm)155.11 x 75.09 x 8.28160.73 x 77.26 x 8.10158.50 x 75.45 x 8.05
Weight (g)163.50170.00179.50
Battery capacity (mAh)403030804000
ColoursStarry Black, Ocean BlueBlack, Rose Gold, Gold, White, Blue, Red, Pink, Gray, SilverBlack, Rose Gold, Gold, White, Blue, Red, Pink, Gray, Silver
Removable battery-NoNo
display
Screen size (inches)6.225.995.99
TouchscreenYesYesYes
Resolution720x1520 pixels720x1440 pixels1080x2160 pixels
Aspect ratio--18:9
Pixels per inch (PPI)--403
hardware
Processorocta-core2GHz octa-core2GHz octa-core
Processor makeMediaTek Helio P22 (MT6762R)Qualcomm Snapdragon 625Qualcomm Snapdragon 625
RAM2GB3GB3GB
Internal storage32MB32GB32GB
Expandable storageYesYesYes
Expandable storage typemicroSDmicroSDmicroSD
Expandable storage up to (GB)256256128
Dedicated microSD slotYes--
camera
Rear camera13-megapixel (f/f/2.2) + 2-megapixel (f/f/2.4)12-megapixel12-megapixel (f/2.2, 1.25-micron)
Rear flashLEDLEDLED
Front camera8-megapixel (f/f/1.8)16-megapixel5-megapixel
Front flashNoYesLED
Rear autofocus--Phase detection autofocus
software
Operating systemAndroid 8.1Android 8.1 OreoAndroid 7.1.2
SkinFuntouch OS 4.5MIUI 9MIUI 9
connectivity
Wi-FiYesYesYes
BluetoothYes, v 5.00Yes, v 4.20Yes, v 4.20
NFCNo--
Micro-USBYes-Yes
Headphones3.5mm-3.5mm
Number of SIMs222
Active 4G on both SIM cardsYes--
Wi-Fi standards supported-802.11 b/g/n802.11 a/b/g/n
GPS-YesYes
Infrared-YesYes
USB OTG--Yes
FM--Yes
Wi-Fi Direct--Yes
Mobile High-Definition Link (MHL)--No
sim 1
SIM TypeNano-SIMNano-SIMNano-SIM
GSM/CDMAGSMGSMGSM
3GYesYesYes
4G/ LTEYesYesYes
sim 2
SIM TypeNano-SIMNano-SIMNano-SIM
GSM/CDMAGSMGSMGSM
3GYesYesYes
4G/ LTEYesYesYes
sensors
Face unlockYes--
Fingerprint sensorYes-Yes
Compass/ MagnetometerYesYesYes
Proximity sensorYesYesYes
AccelerometerYesYesYes
Ambient light sensorYesYesYes
GyroscopeYesYesYes

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