Samsung Galaxy J2 Core vs Oppo A3s vs Xiaomi Redmi Note 4 comparison

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ratings
Overall NDTV RatingRead Review-Read Review-
Design Rating--
Display Rating--
Software Rating--
Performance Rating--
Battery Life Rating--
Camera Rating--
Value for Money Rating--
key specs
Display5.00-inch6.20-inch5.50-inch-
Processor1.4GHz quad-core1.8GHz octa-core2GHz octa-core-
Front Camera5-megapixel 8-megapixel 5-megapixel -
Resolution540x960 pixels720x1520 pixels1080x1920 pixels-
RAM1GB2GB4GB-
OSAndroid 8.1 Oreo (Go edition)Android 8.1 OreoAndroid 6.0-
Storage8GB16GB64GB-
Rear Camera8-megapixel 13-megapixel + 2-megapixel 13-megapixel -
Battery Capacity2600mAh4230mAh4100mAh-
general
Release dateAugust 2018-August 2016-
Launched in IndiaYes-Yes-
Form factorTouchscreenTouchscreenTouchscreen-
Body typePlastic---
Dimensions (mm)143.40 x 72.10 x 8.90156.20 x 75.60 x 8.20151.00 x 76.00 x 8.30-
Weight (g)154.00168.00175.00-
Battery capacity (mAh)260042304100-
Removable batteryYes-No-
ColoursGold, Blue,Red, Dark PurpleGold, Grey, Matte Black-
display
Screen size (inches)5.006.205.50-
TouchscreenYesYesYes-
Resolution540x960 pixels720x1520 pixels1080x1920 pixels-
Aspect ratio16:919:916:9-
Pixels per inch (PPI)--401-
hardware
Processor1.4GHz quad-core1.8GHz octa-core2GHz octa-core-
Processor makeExynos 7570Snapdragon 450Qualcomm Snapdragon 625-
RAM1GB2GB4GB-
Internal storage8GB16GB64GB-
Expandable storageYesYesYes-
Expandable storage typemicroSDmicroSDmicroSD-
Dedicated microSD slotYes---
Expandable storage up to (GB)-256128-
camera
Rear camera8-megapixel (f/2.2)13-megapixel (f/2.2) + 2-megapixel (f/2.4)13-megapixel (f/2.0, 1.12-micron)-
Rear autofocusYesYesPhase detection autofocus-
Rear flashLEDLEDDual LED-
Front camera5-megapixel (f/2.2)8-megapixel (f/2.2)5-megapixel (f/2.0)-
software
Operating systemAndroid 8.1 Oreo (Go edition)Android 8.1 OreoAndroid 6.0-
Skin-ColorOS 5.1MIUI 8-
connectivity
Wi-FiYesYesYes-
GPSYesYesYes-
BluetoothYes, v 4.20Yes, v 4.20Yes, v 4.10-
Micro-USBYesYesYes-
Headphones3.5mm3.5mm3.5mm-
Number of SIMs2-2-
Active 4G on both SIM cardsNo---
Wi-Fi standards supported--802.11 a/b/g/n-
NFC--No-
Infrared--Yes-
USB OTG--Yes-
FM--Yes-
sim 1
SIM TypeMicro-SIM-Micro-SIM-
GSM/CDMAGSM-GSM-
3GYes-Yes-
4G/ LTEYes-Yes-
sim 2
SIM TypeMicro-SIM-Nano-SIM-
GSM/CDMAGSM-GSM-
3GYes-Yes-
4G/ LTEYes-Yes-
sensors
Proximity sensorYesYesYes-
AccelerometerYesYesYes-
Compass/ Magnetometer-YesYes-
Fingerprint sensor--Yes-
Ambient light sensor--Yes-
Gyroscope--Yes-
Barometer--No-
Temperature sensor--No-