Oppo R15x vs Samsung Galaxy J2 vs Samsung Galaxy J1 4G comparison

Compare Oppo R15x
Compare Samsung Galaxy J2
Compare Samsung Galaxy J1 4G
key specs
Display6.40-inch4.70-inch4.30-inch
ProcessorQualcomm Snapdragon 660Exynos 34751.2GHz quad-core
Front Camera25-megapixel2-megapixel 2-megapixel
Rear Camera16-megapixel + 2-megapixel5-megapixel 5-megapixel
RAM6GB1GB768MB
Storage128GB8GB4GB
Battery Capacity3500mAh2000mAh1850mAh
OSAndroid OreoAndroid 5.1Android 4.4
Resolution-540x960 pixels480x800 pixels
general
BrandOppoSamsungSamsung
ModelR15xGalaxy J2Galaxy J1 4G
Release dateNovember 2018September 2015February 2015
Battery capacity (mAh)350020001850
ColoursNebula, Ice BlueBlack, White, GoldBlack, Blue, White
Launched in India-Yes-
Form factor-TouchscreenTouchscreen
Dimensions (mm)-136.50 x 69.00 x 8.40129.00 x 68.20 x 8.90
Removable battery-YesYes
Weight (g)--122.00
display
Screen size (inches)6.404.704.30
TouchscreenYesYesYes
Resolution-540x960 pixels480x800 pixels
Aspect ratio-16:9-
Pixels per inch (PPI)-234-
hardware
Processorocta-core1.3GHz quad-core1.2GHz quad-core
Processor makeQualcomm Snapdragon 660Exynos 3475-
RAM6GB1GB768MB
Internal storage128GB8GB4GB
Expandable storage-YesYes
Expandable storage type-microSDmicroSD
Expandable storage up to (GB)-128128
camera
Rear camera16-megapixel + 2-megapixel5-megapixel (f/2.2)5-megapixel
Front camera25-megapixel2-megapixel (f/2.2)2-megapixel
Rear autofocus-Yes-
Rear flash-LEDLED
software
Operating systemAndroid OreoAndroid 5.1Android 4.4
SkinColorOS 5.2--
connectivity
Wi-FiYesYesYes
GPSYesYesYes
BluetoothYesYes, v 4.10Yes, v 4.00
Headphones3.5mm3.5mm3.5mm
Wi-Fi standards supported-802.11 b/g/n802.11 b/g/n
NFC-NoYes
Infrared-NoNo
USB OTG-YesNo
FM-YesYes
Number of SIMs-22
sim 1
SIM Type-Micro-SIMMicro-SIM
GSM/CDMA-GSMGSM
3G-YesYes
4G/ LTE-YesYes
sim 2
SIM Type-Micro-SIMMicro-SIM
GSM/CDMA-GSMGSM
3G-NoNo
4G/ LTE-NoNo
sensors
Compass/ Magnetometer-NoNo
Proximity sensor-YesYes
Accelerometer-YesYes
Ambient light sensor-NoNo
Gyroscope-NoYes
Barometer-NoNo
Temperature sensor-NoNo
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