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Vivo X21 UD vs OnePlus 6 vs Redmi Note 5 Pro vs Samsung Galaxy S9+ comparison

 Compare Vivo X21 UD
Vivo X21 UD
Compare OnePlus 6
OnePlus 6
Compare Redmi Note 5 Pro
Redmi Note 5 Pro
Compare Samsung Galaxy S9+
Samsung Galaxy S9+
key specs
Display6.28-inch6.28-inch5.99-inch6.20-inch
ProcessorQualcomm Snapdragon 660Qualcomm Snapdragon 845Qualcomm Snapdragon 636Samsung Exynos 9810
Front Camera12-megapixel16-megapixel 20-megapixel 8-megapixel
Rear Camera12-megapixel16-megapixel + 20-megapixel 12-megapixel + 5-megapixel 12-megapixel
RAM6GB8GB4GB6GB
Storage128GB128GB64GB64GB
Battery Capacity3200mAh3300mAh4000mAh3500mAh
OSAndroid 8.1Android 8.1 OreoAndroid 7.1.1Android 8.0
Resolution1080x2280 pixels1080x2280 pixels1080x2160 pixels1440x2960 pixels
general
BrandVivoOnePlusXiaomiSamsung
ModelX21 UD6Redmi Note 5 ProGalaxy S9+
Release dateMarch 1, 2018May 1, 2018February 1, 2018March 1, 2018
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Dimensions (mm)154.50 x 74.80 x 7.40155.70 x 75.40 x 7.75158.60 x 75.40 x 8.05158.10 x 73.80 x 8.50
Weight (g)156.20177.00181.00189.00
Battery capacity (mAh)3200330040003500
ColoursRuby Red, Aurora White, BlackMirror Black, Midnight Black, Silk WhiteBlack, Gold, Lake Blue, Rose GoldLilac Purple, Midnight Black, Coral Blue
Launched in India-YesYesYes
Removable battery-NoNoNo
Body type--Metal-
SAR value--1.190.21
Fast charging---Quick Charge 2.0
display
Screen size (inches)6.286.285.996.20
TouchscreenYesYesYesYes
Resolution1080x2280 pixels1080x2280 pixels1080x2160 pixels1440x2960 pixels
Protection type-Gorilla GlassGorilla GlassGorilla Glass
Aspect ratio-19:918:918.5:9
Pixels per inch (PPI)-402-531
hardware
Processorocta-core2.8GHz octa-core (4x2.8GHz + 4x1.7GHz)1.8GHz octa-core1.7GHz octa-core
Processor makeQualcomm Snapdragon 660Qualcomm Snapdragon 845Qualcomm Snapdragon 636Samsung Exynos 9810
RAM6GB8GB4GB6GB
Internal storage128GB128GB64GB64GB
Expandable storage-NoYesYes
Expandable storage type--microSDmicroSD
Expandable storage up to (GB)--128400
camera
Rear camera12-megapixel16-megapixel (f/1.7, 1.22-micron) + 20-megapixel (f/1.7, 1.0-micron)12-megapixel (f/2.2, 1.25-micron) + 5-megapixel (f/2.0, 1.12-micron)12-megapixel
Rear flashLEDDual LEDLEDLED
Front camera12-megapixel16-megapixel (f/2.0, 1.0-micron)20-megapixel (f/2.2, 1.0-micron)8-megapixel
Rear autofocus-Phase detection autofocusPhase detection autofocus-
Front flash--LED-
software
Operating systemAndroid 8.1Android 8.1 OreoAndroid 7.1.1Android 8.0
SkinFunTouch 4.0OxygenOS 5.1MIUI 9Experience 9
connectivity
Wi-FiYesYesYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac802.11 a/b/g/n/ac802.11 b/g/n/ac802.11 a/b/g/n/ac
GPSYesYesYesYes
BluetoothYes, v 5.00Yes, v 5.00Yes, v 5.00Yes, v 5.00
USB OTGYesYesYesYes
Headphones3.5mm3.5mm3.5mm3.5mm
Number of SIMs2222
NFC-YesNoYes
Infrared-NoNo-
USB Type-C-Yes-Yes
Micro-USB--Yes-
FM--Yes-
Wi-Fi Direct--YesYes
Mobile High-Definition Link (MHL)--No-
sim 1
SIM TypeMicro-SIMNano-SIMNano-SIMNano-SIM
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/ LTEYesYesYesYes
sim 2
SIM TypeMicro-SIMNano-SIMNano-SIMNano-SIM
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/ LTEYesYesYesYes
sensors
Compass/ MagnetometerYesYesYesYes
Proximity sensorYesYesYesYes
Ambient light sensorYesYesYesYes
GyroscopeYesYesYesYes
Face unlock-YesYes-
Fingerprint sensor-YesYesYes
Accelerometer-YesYesYes
3D face recognition--No-
Barometer--NoYes
Temperature sensor--No-
ratings
Overall NDTV Rating-Read ReviewRead ReviewRead Review
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
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