Nokia 5.1 Plus vs Nokia 3.1 vs Samsung Galaxy J2 Pro (2018) vs Samsung Galaxy J7 Nxt comparison

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general
Release dateAugust 2018May 2018January 2018July 2017
Launched in IndiaYes---
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Dimensions (mm)149.51 x 71.98 x 8.10146.25 x 68.65 x 8.70143.80 x 72.30 x 8.40152.40 x 78.60 x 7.60
Battery capacity (mAh)3060299026003000
Removable batteryNo-NoNo
ColoursGloss Black, Gloss White, Midnight Gloss BlueBlue/ Copper, Black/ Chrome, White/ IronBlack, Blue, GoldBlack, Gold
Weight (g)-138.30153.00170.00
display
Screen size (inches)5.865.205.005.50
TouchscreenYesYesYesYes
Resolution720x1520 pixels720x1440 pixels540x960 pixels720x1280 pixels
Aspect ratio19:9---
hardware
Processor1.8GHz octa-coreocta-core1.4GHz quad-core1.6GHz octa-core
Processor makeMediaTek Helio P60MediaTek MT6750--
RAM3GB2GB1.5GB2GB
Internal storage32GB16GB16GB16GB
Expandable storageYesYesYesYes
Expandable storage typemicroSDmicroSDmicroSDmicroSD
Expandable storage up to (GB)400128256256
camera
Rear camera13-megapixel (f/2.0) + 5-megapixel13-megapixel8-megapixel13-megapixel
Rear autofocusPhase detection autofocus---
Rear flashLEDLED-LED
Front camera8-megapixel (f/2.2)8-megapixel5-megapixel5-megapixel
Front autofocusNo---
Rear Flash--Yes-
Front Flash--Yes-
Front flash---LED
software
Operating systemAndroid 8.1Android 8.0-Android 7.0
Operating System--Android 7.0-
connectivity
Wi-FiYesYesYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac802.11 a/b/g/n/ac802.11 b/g/n802.11 b/g/n
GPSYesYesYesYes
BluetoothYes, v 4.20Yes, v 5.00Yes, v 4.20Yes, v 4.10
USB OTGYes-YesNo
USB Type-CYes---
Headphones3.5mm3.5mm3.5mmYes
FMYes-NoNo
Number of SIMs2-22
NFC--NoNo
Infrared--NoNo
sim 1
SIM TypeNano-SIM-Micro-SIMMicro-SIM
GSM/CDMAGSM-GSMGSM
3GYes-YesYes
4G/ LTEYes-YesYes
sim 2
SIM TypeNano-SIM-Micro-SIMMicro-SIM
GSM/CDMAGSM-GSMGSM
3GYes-YesNo
4G/ LTEYes-YesNo
sensors
Compass/ MagnetometerYesYesNoNo
Proximity sensorYesYesYesYes
AccelerometerYesYesYesYes
Ambient light sensorYesYesYesYes
GyroscopeYesYesNoNo
Barometer--NoNo
Temperature sensor--NoNo