Difference between SAMSUNG GALAXY A30 and OPPO A8 ?

	PRODUCT 1	PRODUCT 2
	SAMSUNG SAMSUNG GALAXY A30	OPPO OPPO A8
VERSION
Announced	2019	2019
Release date	2019	2019
NETWORK
Technology
DEVICE
Dimensions	158.5 x 74.7 x 7.7 mm	163.9 x 75.5 x 8.3 mm
Weight	165 g	180 g
S.I.M.	Single or double	Double SIM
Design	16MP	8 MP
Other
SCREEN
langfront.Type
Size	6.4 inches	6.5 inches
Resolution	1080 x 2340 pixels	720 x 1600 pixels
Protection	Gorilla Glass 3

PLATFORM
Operating system	Android 9.0 (Pie)	Android 9.0 (Pie); ColorOS 6.1
Chipset	Exynos 7904 (14nm)	Mediatek MT6765 Helio P35 (12nm)
Processor	Octa-core (2x1.8 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53)	Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
GPU	Mali-G71 MP2	PowerVR GE8320
MEMORY
Card slot	microSD, jusqu`à 512 Go	microSD, jusqu`à 256 Go
Internal & RAM	64 GB, 4 GB RAM or 32 GB, 3 GB RAM	128GB 4GB RAM
CAMERA
Main	16 MP + 5 MP	12 MP + 2 MP + 2 MP
SOUND
Loudspeaker	✔️	✔️
Jack 3,5 mm	✔️	✔️
CONNECTIVITY
Wifi	✔️	✔️
Bluetooth	✔️	✔️
GPS	✔️	✔️
NFC
Radio	FM Radio	FM Radio
USB	2.0,Type-C 1.0,	✔️
CHARACTERISTICS
Sensors	Fingerprint (rear mounted),accelerometer,proximity,compass,	Fingerprint (rear mounted),accelerometer,proximity,compass,
Various	15W fast battery charging
BATTERY
Type	4000 mAh	4230 mAh

What is the difference between SAMSUNG GALAXY A30 and OPPO A8 ?