Xiaomi Mi A1 vs Xiaomi Redmi Note 5A vs Xiaomi Mi 5X vs Xiaomi Redmi Note 4X comparison

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Ratings
Overall NDTV Rating---
Design Rating---
Display Rating---
Software Rating---
Performance Rating---
Battery Life Rating---
Camera Rating---
Value for money Rating---
General
Release dateSeptember 2017August 2017July 2017February 2017
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Dimensions (mm)155.40 x 75.80 x 7.30153.00 x 76.20 x 7.50155.40 x 75.80 x 7.30151.00 x 76.00 x 8.45
Weight (g)168.00150.00165.00165.00
Battery capacity (mAh)3080308030804100
Removable batteryNoNoNoNo
ColoursRose Gold, Gold, Black-Rose Gold, Gold, BlackCherry Powder, Champagne Gold, Platinum Silver Grey, Matte Black, Hatsune Miku Exclusive Colour
SAR ValueNANANANA
Display
Screen size (inches)5.505.505.505.50
TouchscreenYesYesYesYes
Resolution1080x1920 pixels720x1280 pixels1080x1920 pixels1080x1920 pixels
Pixels per inch (PPI)---403
Hardware
Processor2GHz octa-corequad-coreocta-core2GHz octa-core
Processor makeQualcomm Snapdragon 625Snapdragon 425Qualcomm Snapdragon 625Qualcomm Snapdragon 625
RAM4GB2GB4GB3GB
Internal storage64GB16GB64GB32GB
Expandable storageYesYesYesYes
Expandable storage typemicroSDmicroSDmicroSDmicroSD
Expandable storage up to (GB)128128128128
Camera
Rear camera12-megapixel13-megapixel12-megapixel13-megapixel
FlashYesYesYesYes
Front camera5-megapixel5-megapixel5-megapixel5-megapixel
Software
Operating SystemAndroid 7.1.2Android 7.0Android 7.0Android 6.0
Skin-MIUI 9MIUI 9-
Connectivity
Wi-FiYesYesYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac802.11 b/g/n802.11 a/b/g/n/ac802.11 a/b/g/n
GPSYesYesYesYes
BluetoothYes, v 4.20Yes, v 4.20Yes, v 4.20Yes, v 4.20
NFCNoNoNoNo
InfraredYesNoYesYes
Headphones3.5mm3.5mm3.5mm3.5mm
FMNoNoNoYes
Number of SIMs2222
SIM1
SIM TypeNano-SIMNano-SIMNano-SIMMicro-SIM
GSM/CDMAGSMGSM + CDMAGSMGSM
3GYesNoYesYes
4G/LTEYesYesYesYes
SIM2
SIM TypeNano-SIMNano-SIMNano-SIMMicro-SIM
GSM/CDMAGSMGSM + CDMAGSMGSM
3GYesNoYesYes
4G/LTEYesYesYesYes
Sensors
Compass/ MagnetometerYesYesYesYes
Proximity sensorYesYesYesYes
AccelerometerYesYesYesYes
Ambient light sensorYesYesYesYes
GyroscopeYesNoYesYes
BarometerNoNoNoNo
Temperature sensorNoNoNoNo