Oppo A53 vs Vivo X6 Plus vs Samsung Galaxy J7 vs Xiaomi Mi 4i 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 dateDecember 2015December 2015June 2015April 2015
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Dimensions (mm)153.90 x 77.00 x 7.40-152.40 x 78.60 x 7.50138.10 x 69.60 x 7.80
Weight (g)165.00-171.00130.00
Battery capacity (mAh)3075300030003120
Removable batteryNoNoYesNo
ColoursGoldGold, Rose Gold, SilverBlack, White, GoldBlack, White, Orange, Light Blue, and Pink
SAR ValueNANANANA
Display
Screen size (inches)5.505.705.505.00
TouchscreenYesYesYesYes
Resolution720x1280 pixels1080x1920 pixels720x1280 pixels1080x1920 pixels
Pixels per inch (PPI)---441
Hardware
Processor1.5GHz octa-core1.7GHz octa-core1.5GHz octa-core1.7GHz octa-core
Processor makeQualcomm Snapdragon 616MediaTek MT6752Samsung Exynos 7580Qualcomm Snapdragon 615
RAM2GB4GB1.5GB2GB
Internal storage16GB64GB16GB16GB
Expandable storageYesYesYesNo
Expandable storage typemicroSDmicroSDmicroSD-
Expandable storage up to (GB)-128128-
Camera
Rear camera13-megapixel13-megapixel13-megapixel13-megapixel
FlashYesYesYesYes
Front camera5-megapixel8-megapixel5-megapixel5-megapixel
Software
Operating SystemAndroid 5.1Android 5.1Android 5.1Android 5.0.2
SkinColorOS 2.1Funtouch OSTouchWiz UIMIUI 6
Connectivity
Wi-FiYesYesYesYes
Wi-Fi standards supportedNANA802.11 b/g/n802.11 b/g/n/ac
GPSYesYesYesYes
BluetoothYes, v 4.00Yes, v 4.00Yes, v 4.10Yes, v 4.10
NFCYesNoNoNo
InfraredNoNoNoNo
Headphones3.5mm3.5mm3.5mm3.5mm
FMYesYesYesYes
Number of SIMs2222
SIM1
SIM TypeMicro-SIMRegularMicro-SIMMicro-SIM
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/LTEYesYesYesYes
SIM2
SIM TypeMicro-SIMRegularMicro-SIMMicro-SIM
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/LTEYesYesYesYes
Sensors
Compass/ MagnetometerNoNoNoYes
Proximity sensorYesYesYesYes
AccelerometerYesYesYesYes
Ambient light sensorNoYesNoYes
GyroscopeYesYesNoYes
BarometerNoNoNoNo
Temperature sensorNoNoNoNo