Oppo A71 vs Xiaomi Redmi 4 vs Xiaomi Redmi Note 4 comparison

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Ratings
Overall NDTV Rating--
Design Rating--
Display Rating--
Software Rating--
Performance Rating--
Camera Rating--
General
Release dateSeptember 2017November 2016August 2016-
Form factorTouchscreenTouchscreenTouchscreen-
Dimensions (mm)148.10 x 73.80 x 7.60139.30 x 69.90 x 8.65151.00 x 76.00 x 8.30-
Weight (g)137.00150.00175.00-
Battery capacity (mAh)300041004100-
Removable batteryNoNoNo-
ColoursGold, BlackGold, BlackGold, Grey, Matte Black-
Display
Screen size (inches)5.205.005.50-
TouchscreenYesYesYes-
Resolution720x1280 pixels720x1280 pixels1080x1920 pixels-
Pixels per inch (PPI)-296401-
Hardware
Processor1.5GHz octa-core1.4GHz octa-core2GHz octa-core-
Processor makeMediaTek MT6750Qualcomm Snapdragon 435Qualcomm Snapdragon 625-
RAM3GB3GB4GB-
Internal storage16GB32GB64GB-
Expandable storageYesYesYes-
Expandable storage typemicroSDmicroSDmicroSD-
Expandable storage up to (GB)256128128-
Camera
Rear camera13-megapixel13-megapixel13-megapixel-
Front camera5-megapixel5-megapixel5-megapixel-
Software
Operating SystemAndroid 7.1Android 6.0.1Android 6.0-
SkinColor OSMIUI 8MIUI 8-
Connectivity
Wi-FiYesYesYes-
Wi-Fi standards supported802.11 b/g/n802.11 b/g/n802.11 a/b/g/n-
GPSYesYesYes-
BluetoothYes, v 4.00Yes, v 4.10Yes, v 4.10-
NFCNoNoNo-
InfraredNoYesYes-
Headphones3.5mm3.5mm3.5mm-
FMNoYesYes-
Number of SIMs222-
SIM1
SIM TypeNano-SIMMicro-SIMMicro-SIM-
GSM/CDMAGSMGSMGSM-
3GYesYesYes-
4G/LTEYesYesYes-
SIM2
SIM TypeNano-SIMMicro-SIMMicro-SIM-
GSM/CDMAGSMGSMGSM-
3GYesYesYes-
4G/LTEYesYesYes-
Sensors
Compass/ MagnetometerYesYesYes-
Proximity sensorYesYesYes-
AccelerometerYesYesYes-
Ambient light sensorYesYesYes-
GyroscopeNoYesYes-
BarometerNoNoNo-
Temperature sensorNoNoNo-