Xiaomi Redmi Note 4 vs OnePlus X vs OnePlus 2 vs Xiaomi Mi 4i comparison

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Ratings
Overall NDTV Rating
Design Rating
Display Rating
Software Rating
Performance Rating
Camera Rating
General
Release dateAugust 2016October 2015July 2015April 2015
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Dimensions (mm)151.00 x 76.00 x 8.30140.00 x 69.00 x 6.90151.80 x 74.90 x 9.85138.10 x 69.60 x 7.80
Weight (g)175.00138.00175.00130.00
Battery capacity (mAh)4100252533003120
Removable batteryNoNoNoNo
ColoursGold, Grey, Matte BlackOnyx, CeramicSandstone BlackBlack, White, Orange, Light Blue, and Pink
SAR Value-0.43--
Display
Screen size (inches)5.505.005.505.00
TouchscreenYesYesYesYes
Resolution1080x1920 pixels1080x1920 pixels1080x1920 pixels1080x1920 pixels
Pixels per inch (PPI)401441-441
Hardware
Processor2GHz octa-core2.3GHz quad-core1.8GHz octa-core1.7GHz octa-core
Processor makeQualcomm Snapdragon 625Qualcomm Snapdragon 801Qualcomm Snapdragon 810Qualcomm Snapdragon 615
RAM4GB3GB4GB2GB
Internal storage64GB16GB64GB16GB
Expandable storageYesYesNoNo
Expandable storage typemicroSDmicroSD--
Expandable storage up to (GB)128128--
Camera
Rear camera13-megapixel13-megapixel13-megapixel13-megapixel
Front camera5-megapixel8-megapixel5-megapixel5-megapixel
Software
Operating SystemAndroid 6.0Android 5.1.1OxygenOS 2.0Android 5.0.2
SkinMIUI 8Oxygen OS 2.1-MIUI 6
Connectivity
Wi-FiYesYesYesYes
Wi-Fi standards supported802.11 a/b/g/n802.11 b/g/n802.11 a/b/g/n/ac802.11 b/g/n/ac
GPSYesYesYesYes
BluetoothYes, v 4.10Yes, v 4.00Yes, v 4.10Yes, v 4.10
NFCNoNoNoNo
InfraredYesNoNoNo
Headphones3.5mm3.5mm3.5mm3.5mm
FMYesYesNoYes
Number of SIMs2222
SIM1
SIM TypeMicro-SIMNano-SIMNano-SIMMicro-SIM
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/LTEYesYesYesYes
SIM2
SIM TypeMicro-SIMNano-SIMNano-SIMMicro-SIM
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/LTEYesYesYesYes
Sensors
Compass/ MagnetometerYesNoYesYes
Proximity sensorYesYesYesYes
AccelerometerYesYesYesYes
Ambient light sensorYesYesYesYes
GyroscopeYesYesYesYes
BarometerNoNoNoNo
Temperature sensorNoNoNoNo