Difference between OPPO REALME X2 PRO and SAMSUNG GALAXY M31S ?

	PRODUCT 1	PRODUCT 2
	OPPO OPPO REALME X2 PRO	SAMSUNG SAMSUNG GALAXY M31S
VERSION
Announced	2019	2020
Release date	2019	2020
NETWORK
Technology
DEVICE
Dimensions	161 x 75.7 x 8.7 mm
Weight	199 g
S.I.M.	Double SIM	Double SIM
Design	16MP	32MP
Other	1000 nits max brightness - 90Hz - HDR10+ - DCI-P3 100%
SCREEN
langfront.Type
Size	6.5 inches	6.5 inches
Resolution	1080 x 2400 pixels	1080 x 2400 pixels
Protection	Corning Gorilla Glass 5	Gorilla Glass 3
PLATFORM
Operating system	Android 9.0 (Pie),planned upgrade to Android 10.0; ColorOS 6.1,	Android 10,One UI 2.0,
Chipset	Qualcomm SDM855 Snapdragon 855+ (7nm)	Exynos 9611 (10nm)
Processor	Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.8 GHz Kryo 485)	Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
GPU	Adreno 640	Mali-G72 MP3
MEMORY
Card slot	❌	microSDXC
Internal & RAM	64GB 6GB RAM, 128GB 8GB RAM, 256GB 12GB RAM	128GB 6GB RAM or 128GB 8GB RAM
CAMERA
Main	64 MP + 13 MP + 8 MP + 2 MP	64 MP + 12 MP + 5 MP + 5 MP
SOUND
Loudspeaker	Oui, avec les haut-parleurs stéréo Dolby Atmos	✔️
Jack 3,5 mm	✔️	✔️
CONNECTIVITY
Wifi	✔️	✔️
Bluetooth	✔️	✔️
GPS	✔️	✔️
NFC	✔️	✔️
Radio	FM Radio	FM Radio,RDS,registration,
USB	2.0,Type-C 1.0,	2.0,Type-C 1.0,
CHARACTERISTICS
Sensors	Fingerprint (under display,optical),accelerometer,gyro,proximity,compass,	Fingerprint (lateral),accelerometer,gyroscope,proximity,compass,
Various	50W fast battery charging	25W Fast Battery Charging - Reverse Charge
BATTERY
Type	4000 mAh	6000 mAh

What is the difference between OPPO REALME X2 PRO and SAMSUNG GALAXY M31S ?