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Xiaomi Mi 9 vs Mi 8 vs Xiaomi Redmi Note 4X vs Xiaomi Redmi Note 4 comparison

 Compare Xiaomi Mi 9
Xiaomi Mi 9
Compare Mi 8
Mi 8
Compare Xiaomi Redmi Note 4X
Xiaomi Redmi Note 4X
Compare Xiaomi Redmi Note 4
Xiaomi Redmi Note 4
key specs
Display6.39-inch6.21-inch5.50-inch5.50-inch
ProcessorQualcomm Snapdragon 855Qualcomm Snapdragon 845Qualcomm Snapdragon 625Qualcomm Snapdragon 625
Front Camera20-megapixel 20-megapixel 5-megapixel5-megapixel
Rear Camera48-megapixel + 12-megapixel + 16-megapixel 12-megapixel + 12-megapixel 13-megapixel13-megapixel
RAM6GB6GB3GB4GB
Storage128GB64GB32GB64GB
Battery Capacity3300mAh3400mAh4100mAh4100mAh
OSAndroid 9.0Android OreoAndroid 6.0Android 6.0
Resolution1080x2340 pixels1080x2248 pixels1080x1920 pixels1080x1920 pixels
general
BrandXiaomiXiaomiXiaomiXiaomi
ModelMi 9Mi 8Redmi Note 4XRedmi Note 4
Release dateFebruary 1, 2019May 1, 2018February 1, 2017August 1, 2016
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Dimensions (mm)157.50 x 74.67 x 7.61154.90 x 74.80 x 7.60151.00 x 76.00 x 8.45151.00 x 76.00 x 8.30
Weight (g)173.00175.00165.00175.00
Battery capacity (mAh)3300340041004100
Fast chargingProprietary---
Wireless chargingYes---
ColoursDeep Grey, Holographic Illusion Blue, Holographic IllusionWhite, Gold, Light Blue, BlackCherry Powder, Champagne Gold, Platinum Silver Grey, Matte Black, Hatsune Miku Exclusive ColourGold, Grey, Matte Black
Removable battery--NoNo
Launched in India---Yes
display
Screen size (inches)6.396.215.505.50
TouchscreenYesYesYesYes
Resolution1080x2340 pixels1080x2248 pixels1080x1920 pixels1080x1920 pixels
Protection typeGorilla Glass---
Aspect ratio19.5:918.7:9-16:9
Pixels per inch (PPI)-402403401
hardware
Processor2.84GHz octa-coreocta-core (4x2.8GHz + 4x1.8GHz)2GHz octa-core2GHz octa-core
Processor makeQualcomm Snapdragon 855Qualcomm Snapdragon 845Qualcomm Snapdragon 625Qualcomm Snapdragon 625
RAM6GB6GB3GB4GB
Internal storage128GB64GB32GB64GB
Expandable storage--YesYes
Expandable storage type--microSDmicroSD
Expandable storage up to (GB)--128128
camera
Rear camera48-megapixel (f/1.75, 0.8-micron) + 12-megapixel (f/2.2, 1.0-micron) + 16-megapixel (f/2.2, 1.0-micron)12-megapixel (f/1.8, 1.4-micron) + 12-megapixel (f/2.4, 1.0-micron)13-megapixel13-megapixel (f/2.0, 1.12-micron)
Rear autofocusYesPhase detection autofocus-Phase detection autofocus
Rear flashYesDual LEDYesDual LED
Front camera20-megapixel (f/2.0, 0.9-micron)20-megapixel (f/2.0, 0.9-micron)5-megapixel5-megapixel (f/2.0)
software
Operating systemAndroid 9.0Android OreoAndroid 6.0Android 6.0
SkinMIUI 10MIUI 10-MIUI 8
connectivity
Wi-FiYesYesYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac802.11 a/b/g/n/ac802.11 a/b/g/n802.11 a/b/g/n
GPSYesYesYesYes
BluetoothYes, v 5.00Yes, v 5.00Yes, v 4.20Yes, v 4.10
NFCYesYesNoNo
USB Type-CYesYes--
Number of SIMs2222
USB OTG-YesYesYes
Infrared--YesYes
Headphones--3.5mm3.5mm
FM--YesYes
Wi-Fi Direct--NoNo
Mobile High-Definition Link (MHL)--NoNo
Micro-USB---Yes
sim 1
SIM TypeNano-SIMNano-SIMMicro-SIMMicro-SIM
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/ LTEYesYesYesYes
sim 2
SIM TypeNano-SIMNano-SIMNano-SIMNano-SIM
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/ LTEYesYesYesYes
sensors
Face unlockYesYes--
3D face recognitionYes---
Fingerprint sensorYesYes-Yes
Compass/ MagnetometerYesYesYesYes
Proximity sensorYesYesYesYes
AccelerometerYesYesYesYes
Ambient light sensorYesYesYesYes
GyroscopeYesYesYesYes
Barometer-YesNoNo
Temperature sensor--NoNo
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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