Difference between SAMSUNG GALAXY A2 CORE and VIVO Y31S 5G ? in United States

	PRODUCT 1	PRODUCT 2
	SAMSUNG SAMSUNG GALAXY A2 CORE	VIVO VIVO Y31S 5G
VERSION
Announced	2019	2021
Release date	2019	2021
NETWORK
Technology		GSM / CDMA / HSPA / LTE / 5G
DEVICE
Dimensions	141.6 x 71 x 9.1 mm	164.2 x 75.4 x 8.4 mm (6.46 x 2.97 x 0.33 in)
Weight	142 g	185.5 (g6.56 oz)
S.I.M.	Single or dual SIM	Dual SIM
Design	5 MP	8 MP
Other
SCREEN
langfront.Type		IPS LCD,90Hz,
Size	5 inches	6.58 inches
Resolution	540 x 960 pixels	1080 x 2408 pixels
Protection

PLATFORM
Operating system	Android 8.0 Oreo (Go edition)	Android 11,Funtouch 10.5,
Chipset	Exynos 7870 Octa (14nm)	Qualcomm SM4350 Snapdragon 480 5G (8nm)
Processor	Octa-core 1.6 GHz Cortex-A53	Octa-core (4x2.0 GHz Kryo 460 & 4xX.X GHz Kryo 460)
GPU	Mali-T830 MP1	Adreno 619
MEMORY
Card slot	microSD, jusqu`à 256 Go	❌
Internal & RAM	8/16 GB, 1 GB RAM	128GB 4GB RAM, 128GB 6GB RAM
CAMERA
Main	5 MP	13 MP + 2 MP
SOUND
Loudspeaker	✔️	✔️
Jack 3,5 mm	✔️	✔️
CONNECTIVITY
Wifi	✔️	✔️
Bluetooth	✔️	✔️
GPS	✔️	✔️
NFC		❌
Radio	FM Radio	❌
USB	microUSB 2.0	Type-C 2.0
CHARACTERISTICS
Sensors	Proximity accelerometer	Fingerprint (side-mounted),accelerometer,gyro,proximity,compass / Fingerprint (lateral),accelerometer,gyroscope,proximity,compass,
Various		Fast Charging 18W / Fast battery charge 18W
BATTERY
Type	2600 mAh	5000 mAh

What is the difference between SAMSUNG GALAXY A2 CORE and VIVO Y31S 5G in United States?